383 Stroker with Blower???? - Chevelle Tech
Chevelle Tech join team chevelle as a supporting member  
Chevelle Parts at SS396.com      
GROUND UP & SS396.com         
Official Sponsor of Team Chevelle
     

Auto Insurance

Chevelles.com is the premier Chevrolet Chevelle Forum on the internet. Registered Users do not see the above ads.
Engine AdvertisementGeneral Engine Discussion.

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old Sep 25th, 06, 10:45 PM
Danspeed1 Danspeed1 is offline
Tech Team
 
Join Date: Aug 2002
Location: Chester, New York, United States 10918
Posts: 303
Default 383 Stroker with Blower????

About 6 years back my father purchased a beat to death corvette, that was an ex drag car. One word of advice, don't buy ex drag cars. In place of the old BBC on his 72 Vette was a GM Goodwrench 350.

Over the years he restored the car, top to bottom. It has gone from a drag car, to a street car, to a crazy street car. Unfortuntely the old Goodwrench 350 didn't hold up to well after all the top end performance work and lots of $$ spent.

Just wanted to get some opinions on what direction to go in with this project. We would like to do this project together... I feel I have the basic experience I need (2 years of college [automotive], 30K later I owe him an engine).

Currently the car is setup with:

The original Drag Racing Suspension from 6 years ago
3.73 Rear
Mad Dogg High Performance 700R4
2800 TCI Converter

The parts of the engine we would like to Reuse:

Holley 750 Double Pumper
HEI Distributor
MSD 6AL Ignition
B&M 144 Powercharger (blower) with underdrive pulley
Edelbrock water pump
Brand New Scorpion Roller Rockers
Original 4 Bolt 350 block (will be bored .30 over and cleaned up)

I'm not really sure which direction to go in with this project. It has to be somewhat Streetable. There is never too much horsepower, and never enough torque. We were considering a stroker kit of some sort topped off with the 144 blower????

Interested on hearing your opinions about the direction of the project?
Whats popular?

Dan
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old Sep 26th, 06, 3:23 AM
Motorhead6T5 Motorhead6T5 is offline
Tech Team
 
Join Date: May 2006
Location: Marysville CA
Posts: 115
Default Re: 383 Stroker with Blower????

I don't think that small of a blower is ideal for a stroker. It probably won't feed the air needed at high rpm. It will however make huge off idle torque. I think the limit on that blower would be about 500hp and 5000rpm. And that would be highly overdriven and need good gas. You could build a 383 to 500hp by itself. The 177 size is the smallest i would put on a 383 and thats actually what i plan to do once this motor lets go. I think it would be fine to run the 144 on a street motor but I think it would be kinda pointless on a race motor,you would be better off selling the blower and getting a real nice nitrous setup for the best power for $$$. Or upgrade to a bigger blower like a 6-71.
__________________
72 Chevelle Malibu 350 Mild 350,177 Weiand,built th350,2400 stall,12 bolt LSD 3.73
Reply With Quote Quick reply to this message
  #3  
Old Sep 26th, 06, 2:27 PM
Danspeed1 Danspeed1 is offline
Tech Team
 
Join Date: Aug 2002
Location: Chester, New York, United States 10918
Posts: 303
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by Motorhead6T5 View Post
It will however make huge off idle torque. I think the limit on that blower would be about 500hp and 5000rpm.
You could build a 383 to 500hp by itself.
We played with the idea of possibly selling the 144, and using the $$ towards the new motor. The 671 is a consideration, but of course as always, budget would become a problem. I thought it would be nice to keep the blower because of the current setup of the vehicle. I will have to post some pictures so you can get an idea about what I am talking about.

I've heard of slow blower cars before.... cars that don't make huge performance gains based on the addition of a blower.
Correct me if I am wrong, itís been awhile since I've been able to play with anything other then a Toyota. (I hate toyotas)

383,.... long stoke small bore..... will make bigger low end torque then the 350. Displacement is larger also, so more hp. Now your saying with good heads and cam, you can make 500 horsepower up to 5000RPM easy with just a stroker: Natrually Aspirated. Now, even though the 144 blower will not displace enough air to rev the motor past 5000 RPM, won't it still make a substantial difference when it comes to adding to bottom end torque. How is it that it will breath naturally just fine, but with the addition of the 144, its choked? Meanwhile, its a 383,.... would you even want to rev a 383 past 5500-6000RPM?
I think what I should be asking is what is better for drag racing, light to light or track... being able to rev to 7-8000RPM or having the power band closer to 3000 to 5000 RPM?

Sorry if this sounds a little distorted, itís been a while since I have studied this stuff.

Dan
Reply With Quote Quick reply to this message
  #4  
Old Sep 26th, 06, 2:51 PM
64CDNSS 64CDNSS is offline
Tech Team
Mic
 
Join Date: Feb 2006
Location: Gilford, Ontario
Posts: 362
Default Re: 383 Stroker with Blower????

How much boost were you able to get with the blower on the old 350? On a 383 you would have proportionally less boost with the same setup.
Don't choke the inlet side of the blower with a small carb if going to 383.
If budget is a concern, I would keep the blower and add an HP main body to the carb. Port match the intake to the heads and maybe port the plenum of the intkae a bit - just radius off any sharp edges and knock off any casting flash.
Get a cam that is specifically for a blown engine and put a really good exhaust system on it.
Reply With Quote Quick reply to this message
  #5  
Old Sep 26th, 06, 3:41 PM
Danspeed1 Danspeed1 is offline
Tech Team
 
Join Date: Aug 2002
Location: Chester, New York, United States 10918
Posts: 303
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by 64CDNSS View Post
How much boost were you able to get with the blower on the old 350? On a 383 you would have proportionally less boost with the same setup.
put a really good exhaust system on it.
How much boost.... good question,.. Ill have to give him a call and find out. As for the exhaust, its got hooker competition side pipes, which are good flowing for the application. The carb can go; I figured with the bigger displacment + blower, the carb would have to be upgraded. The 144 comes with its own blower manifold. I have yet to decided on a set of heads, I am just looking for some ideas at this point, but if I go with cast iron I will get both the intake and the heads ported and polished, with a valve job.


Dan
Reply With Quote Quick reply to this message
  #6  
Old Sep 26th, 06, 10:41 PM
Motorhead6T5 Motorhead6T5 is offline
Tech Team
 
Join Date: May 2006
Location: Marysville CA
Posts: 115
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by Danspeed1 View Post
We played with the idea of possibly selling the 144, and using the $$ towards the new motor. The 671 is a consideration, but of course as always, budget would become a problem. I thought it would be nice to keep the blower because of the current setup of the vehicle. I will have to post some pictures so you can get an idea about what I am talking about.

I've heard of slow blower cars before.... cars that don't make huge performance gains based on the addition of a blower.
Correct me if I am wrong, itís been awhile since I've been able to play with anything other then a Toyota. (I hate toyotas)

383,.... long stoke small bore..... will make bigger low end torque then the 350. Displacement is larger also, so more hp. Now your saying with good heads and cam, you can make 500 horsepower up to 5000RPM easy with just a stroker: Natrually Aspirated. Now, even though the 144 blower will not displace enough air to rev the motor past 5000 RPM, won't it still make a substantial difference when it comes to adding to bottom end torque. How is it that it will breath naturally just fine, but with the addition of the 144, its choked? Meanwhile, its a 383,.... would you even want to rev a 383 past 5500-6000RPM?
I think what I should be asking is what is better for drag racing, light to light or track... being able to rev to 7-8000RPM or having the power band closer to 3000 to 5000 RPM?

Sorry if this sounds a little distorted, itís been a while since I have studied this stuff.

Dan
With the 144 you will create the power at a lower rpm,without you wouldn't have as much low end torque but you would probably make more peak power above 5k. It really just depends how much power you want. A mild blower would tend to make the car more streetable. My motor before the blower would barely idle below 1100,and with the blower on it idles great at 900.

383's can rev to 8k if you build it right.

It really depends what your goals are,I'm not saying you can't run a 144 on a 383,people run 177's on bigblocks. It just sounds like you want to make a lot of power,and I don't think the 144 will do it. When its overdriven to flow alot of air the air gets hotter and it stops making anymore power.

If you want a street car that makes gobs of torque and really sets you back in your seat off idle,and runs smooth,and looks cool,then run the 144. If you want to lay down the big numbers on the track and dyno I would go another route. I see those things sell used on ebay for only a few hundred under the cost new.

You kinda gotta look at that blower as you would a 50-70 shot of nitrous,cause thats about how much power they are worth. I figure my 177 is worth the same as a 100 shot,but I got no bottle to refill.
__________________
72 Chevelle Malibu 350 Mild 350,177 Weiand,built th350,2400 stall,12 bolt LSD 3.73
Reply With Quote Quick reply to this message
  #7  
Old Sep 27th, 06, 12:28 AM
Danspeed1 Danspeed1 is offline
Tech Team
 
Join Date: Aug 2002
Location: Chester, New York, United States 10918
Posts: 303
Default Re: 383 Stroker with Blower????

Motorhead,

You make a few very valid points. Thatís the way I look at the 144, as a 100 shot of nitrous low end. The only thing that got me a little bit was when you said that it "won't feed the air needed at high RPM." Not to reiterate what you previously said, but you stated that a good 383 could rev to 8K. First off I personally have had the BBC in my car all my life and that revved out at 5500. Or at least thatís as far as I pushed it. I actually posted in the performance section a question about bore v. stroke and the benefits of being able to revv an engine that high (8K). I'm still not sure with the SBC if I need to build something that will rev that high,... maybe you could clarify what I need this engine to do to run good 1/4 times??? On the other hand,... the added low end toque sounds real good with the 144 blower, and considering I already own it, itís a quick bolt on setup for me to use as "like a 100 shot of nitrous." Thatís why I am looking to build the 383 for more power, think of the 144 as a nice power shot on top of the 383. Where most people build their engines around a certain feature (blower, turbo, nitrous) I am looking to build a 383.... and then add a little. What I need to to clarify is if I do decided to revv this thing to 8000RPM, will it be detrimental to the engine to have the 144 on, or will it just make no difference on top end power. I can deal with it not adding power to the upper RPM band, I just don't want it to take anything away. (air gets hotter I lose power?)

Thanks alot for all the advice,... I need a refresh on the basics I've learned,

Dan
Reply With Quote Quick reply to this message
  #8  
Old Sep 27th, 06, 1:04 AM
Motorhead6T5 Motorhead6T5 is offline
Tech Team
 
Join Date: May 2006
Location: Marysville CA
Posts: 115
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by Danspeed1 View Post
Motorhead,

You make a few very valid points. Thatís the way I look at the 144, as a 100 shot of nitrous low end. The only thing that got me a little bit was when you said that it "won't feed the air needed at high RPM." Not to reiterate what you previously said, but you stated that a good 383 could rev to 8K. First off I personally have had the BBC in my car all my life and that revved out at 5500. Or at least thatís as far as I pushed it. I actually posted in the performance section a question about bore v. stroke and the benefits of being able to revv an engine that high (8K). I'm still not sure with the SBC if I need to build something that will rev that high,... maybe you could clarify what I need this engine to do to run good 1/4 times??? On the other hand,... the added low end toque sounds real good with the 144 blower, and considering I already own it, itís a quick bolt on setup for me to use as "like a 100 shot of nitrous." Thatís why I am looking to build the 383 for more power, think of the 144 as a nice power shot on top of the 383. Where most people build their engines around a certain feature (blower, turbo, nitrous) I am looking to build a 383.... and then add a little. What I need to to clarify is if I do decided to revv this thing to 8000RPM, will it be detrimental to the engine to have the 144 on, or will it just make no difference on top end power. I can deal with it not adding power to the upper RPM band, I just don't want it to take anything away. (air gets hotter I lose power?)

Thanks alot for all the advice,... I need a refresh on the basics I've learned,

Dan
The supercharger itself could feed the air but it wouldn't be efficiant(hot air),so it wouldn't make power,and worse would cause detonation. Compression ratio is also somthing to think about. The compression ratio on a N/A motor would be a lot higher than a engine built for boost. It really depends how fast you want to go,if you want to run pump gas,and how much money you have. If you are happy with a low 12,high 11 second car then I think you could reach that goal quite easily with the 144. If you are talkin 10's or faster,you should get a different blower,or run n20. I don't want to recomend this to anybody but I plan on running some nitrous on top of my blower if i feel i need more power,once the blower is fully rung out.
__________________
72 Chevelle Malibu 350 Mild 350,177 Weiand,built th350,2400 stall,12 bolt LSD 3.73
Reply With Quote Quick reply to this message
  #9  
Old Sep 27th, 06, 3:21 AM
Motorhead6T5 Motorhead6T5 is offline
Tech Team
 
Join Date: May 2006
Location: Marysville CA
Posts: 115
Default Re: 383 Stroker with Blower????

Here is some good articles with small block chevys and mini blowers.

http://www.chevyhiperformance.com/te...ine_build_vii/

http://www.superchevy.com/technical/..._blower_motor/
__________________
72 Chevelle Malibu 350 Mild 350,177 Weiand,built th350,2400 stall,12 bolt LSD 3.73
Reply With Quote Quick reply to this message
  #10  
Old Sep 28th, 06, 1:36 AM
Danspeed1 Danspeed1 is offline
Tech Team
 
Join Date: Aug 2002
Location: Chester, New York, United States 10918
Posts: 303
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by Motorhead6T5 View Post
Those articles were very helpful. Seems that you know what your talking about; most of what you said was in line with what I read. We have a few things to consider. 500HP with the 144 on 93 octane possible with a octane booster is not bad all things considered, but I see that if you want to make more power, detontation will increase with higher CR, lower octane, and more psi.

Now if I decided to go with a straight up stroker, 383 or larger SBC, what RPM range would be most suitable for 1/4 drag racing. (A question this stupid comes from Small block in experience,... Everyone should own a BB)

Thanks motor,

Dan
Reply With Quote Quick reply to this message
  #11  
Old Sep 28th, 06, 3:19 AM
Motorhead6T5 Motorhead6T5 is offline
Tech Team
 
Join Date: May 2006
Location: Marysville CA
Posts: 115
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by Danspeed1 View Post

Now if I decided to go with a straight up stroker, 383 or larger SBC, what RPM range would be most suitable for 1/4 drag racing. (A question this stupid comes from Small block in experience,... Everyone should own a BB)

Thanks motor,

Dan
It really depends on your final goal with the car. How much Hp or 1/4 mile times you lookin for. One of my buddys revs 8k on a 300 shot with a 400 sbc,he runs low 9's at 143. And he drives it on the street.

His combo is somthing like dart pro 1 227cc heads all decked out,port matched to a dart intake. Flat top JE's(11:1 compressin i think) with h beam rods and a 4340 crank. I think he might have a dark block also. 600 lift roller cam etc. But thats what pretty much what a well build SBC is capable of and still be drivable on the street. I believe it went 10.7 on motor alone,which would be like 550-600hp,this is in a 3000lb nova.

I guess the rpm range would be limited to the quality of the parts you build it with,and the capabilty to flow enough air/and fuel to make the power.
__________________
72 Chevelle Malibu 350 Mild 350,177 Weiand,built th350,2400 stall,12 bolt LSD 3.73
Reply With Quote Quick reply to this message
  #12  
Old Sep 28th, 06, 9:36 AM
Motorhead6T5 Motorhead6T5 is offline
Tech Team
 
Join Date: May 2006
Location: Marysville CA
Posts: 115
Default Re: 383 Stroker with Blower????

Here is another article with a 140 series on a 383.

http://www.superchevy.com/technical/...ownlegal_copy/
__________________
72 Chevelle Malibu 350 Mild 350,177 Weiand,built th350,2400 stall,12 bolt LSD 3.73
Reply With Quote Quick reply to this message
  #13  
Old Sep 28th, 06, 2:29 PM
Danspeed1 Danspeed1 is offline
Tech Team
 
Join Date: Aug 2002
Location: Chester, New York, United States 10918
Posts: 303
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by Motorhead6T5 View Post
It really depends on your final goal with the car. How much Hp or 1/4 mile times you lookin for. One of my buddys revs 8k on a 300 shot with a 400 sbc,he runs low 9's at 143. And he drives it on the street.
Not quite that fast. Its always nice to set a goal, ours happens to be high 10's, but I will personally be pleased to see the the car break into the low 11's. I know the suspension can take it and with a set of drag radials it should grip pretty good. I just have to match the engine correctly to the drivetrain because the drivetrain is brand new and not going anywhere.

Dan
Reply With Quote Quick reply to this message
  #14  
Old Sep 28th, 06, 9:25 PM
Motorhead6T5 Motorhead6T5 is offline
Tech Team
 
Join Date: May 2006
Location: Marysville CA
Posts: 115
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by Danspeed1 View Post
Not quite that fast. Its always nice to set a goal, ours happens to be high 10's, but I will personally be pleased to see the the car break into the low 11's. I know the suspension can take it and with a set of drag radials it should grip pretty good. I just have to match the engine correctly to the drivetrain because the drivetrain is brand new and not going anywhere.

Dan
What kinda gears? Stall? Race weight? I bet if you were determined you could get that thing low 11's with the blower.
__________________
72 Chevelle Malibu 350 Mild 350,177 Weiand,built th350,2400 stall,12 bolt LSD 3.73
Reply With Quote Quick reply to this message
  #15  
Old Sep 28th, 06, 10:32 PM
Danspeed1 Danspeed1 is offline
Tech Team
 
Join Date: Aug 2002
Location: Chester, New York, United States 10918
Posts: 303
Default Re: 383 Stroker with Blower????

Quote:
Originally Posted by Motorhead6T5 View Post
What kinda gears? Stall? Race weight? I bet if you were determined you could get that thing low 11's with the blower.
1972 Corvette
Weight = ???
3.73 Posi Rear
700R4 High Performance Transmisison
2800 TCI Stall Converter

I know its possible, I just want to make as much power as possible at as little cost as possible. Isn't that what everybody wants?????????????????

I am going to look into some other options.... The only reason I asked about the 8K Engine was because I was interested in learning about it. Sticking with basics will be cheaper and more effective for me anyway....

Large displacment = lots of torque = fast car

If the blower has to go it has to go, it would be nice to be able to keep it, it would be nicer to meet the goal of 10's.... I'm almost certain I can meet 11's.

I am going to look into what my options actually are and then repost when I have actual figures/specs to work off of.

Thanks
Dan
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply
Chevelle Tech > Mechanical > Engine      Current Topic: 383 Stroker with Blower????
Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Chevelle Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address. Note, you will be sent a confirmation request to this address.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
383 stroker. 70chevelle_Z06 Performance 15 Jan 29th, 07 1:22 PM
Urgent: BIG probmlems upon assembly of 383 stroker. V8fan_russia Engine 8 May 18th, 06 2:28 AM
350 to 383 stroker Brickhouse40 Engine 13 Mar 23rd, 06 12:56 AM
383 stroker jbird76 Performance 21 Dec 6th, 05 12:32 AM
Oil pan question for 383 stroker scottyz Performance 6 Aug 24th, 05 2:33 AM


All times are GMT -4. The time now is 8:51 PM.


Is there a site like this for?    El Caminos Camaros Novas Impalas GTO Chevy Punch All Chevys

© 2009 Team Chevelle - AutoForums