750 hp on the street [Archive] - Chevelle Tech

: 750 hp on the street


wvnova
Jun 14th, 11, 8:13 PM
has to run on pump gas and have a hyd roller. what would your set up be? i'm new to this board and after alot of google bbc searches this forum kept showing up. i respect your guys knowledge here after reading lots of threads. i have a 69 nova that weighs 3600 with driver a tko 600 and 4:10s in the 12 bolt. stock rear suspension. i want a kick a** street car. i currently have a world products 509 merlin [ i think its the only crate motor they have built that has been trouble free] that is supposed to make 575 hp @5800 and 595 tq @3500.i don't want to go to a solid roller because the car is currently undergoing a custom resto. and oil running all over the motor and subframe while adjusting the valve lash isn't happening. i don't plan on racing the car since there is no dragstrip close.

ryfrat
Jun 14th, 11, 8:18 PM
oil running all over the motor and subframe while adjusting the valve lash isn't happening?
You do know the lash is adjusted without the motor running and with shaft rockers you'll hardly ever have to adjust them.I do not get oil spray on my car.

ryfrat
Jun 14th, 11, 8:26 PM
Mike Lewis forged 540/555 cu in 10:5:1
AFR 335
Chris Straub Soild roller and morel lifters
T and D shaft rockers
Victor jr intake
Pro systems hp 1000 carb

That should get you close for starters

67 velle
Jun 14th, 11, 8:30 PM
Mike Lewis forged 540/555 cu in 10:5:1
AFR 335
Chris Straub Soild roller and morel lifters
T and D shaft rockers
Victor jr intake
Pro systems hp 1000 carb

That should get you close for starters
That should do it!

crazydavey
Jun 14th, 11, 8:45 PM
I don't think you need 750 for a kick ass street car Dave. You won't be able to hook that anyway unless you want to do long smokey burouts, especially with a stick car...it would work for that...

750 would be a big stretch for a HR, not saying it couldn't done but a big stretch (and probably expensive). Any reason you chose that number? If you're at 575 now even going to 650/675 would be night and day and that's doable cost effectively....JMO...

wvnova
Jun 14th, 11, 8:50 PM
I don't think you need 750 for a kick ass street car Dave. You won't be able to hook that anyway unless you want to do long smokey burouts, especially with a stick car...it would work for that...

750 would be a big stretch for a HR, not saying it couldn't done but a big stretch (and probably expensive). Any reason you chose that number? If you're at 575 now even going to 650/675 would be night and day and that's doable cost effectively....JMO...
no 750 is kinda a benchmark i set i don't want to do this again so i figure @750 i won't. hey i like long smokey burnouts:yes:

Greg Owens
Jun 14th, 11, 8:51 PM
Save your money IMO. I actually don't think you would be able to tell the difference between 575 and 675 on the street. The tires are going to INSTANTLY light up with either combo and I doubt spinning the tires with 675 HP is any quicker than spinning them with 575. Maybe they stop breaking loose at 95 instead of 85 from a roll.:p

wvnova
Jun 14th, 11, 8:53 PM
oil running all over the motor and subframe while adjusting the valve lash isn't happening?
You do know the lash is adjusted without the motor running and with shaft rockers you'll hardly ever have to adjust them.I do not get oil spray on my car.
no i didn't know that anytime i've seen it done the car was always running.hey thanks for the tip on the shaft rockers didn't know they worked that well. maybe i could be talked into a s.r.

GRN69CHV
Jun 14th, 11, 9:11 PM
469" motor was maybe 550hp, new 540" motor is 650-680 hp. You can tell the difference. A step up to 750 hp would entail a much more radical motor. But what's really noticeable with the new 540" is the midrange punch and overall throttle response. Right there all the time from idle To 6000.

mr 4 speed
Jun 14th, 11, 9:13 PM
wether its a flat tappet solid or a roller..you can certainly set the lash cold.
I don't set the lash on anything while its running anymore....
I am sure a s/r would wake the 509 right up and take it to the next level

wills65
Jun 14th, 11, 9:31 PM
Procharger....Making more HP than guys can put through street tires since they started making 'em. I dont see you getting there any easier unless you slap a plate on it and spray it to 750hp. Any other way is going to cost you some substantial money and make the car more rowdy to drive than most would like with a stick and 4.10s. Plus you can step away from the tall gears and put some 3.55's in there to make it a little more livable to drive on the highway. Just my thoughts.

540Hotrod
Jun 14th, 11, 9:46 PM
Basic 540/555 will do 750+ easily with a good Hyd roller and some CNC AFR 335's or Dart 335's or better. You can do it with a solid flat tappet also. Peak HP RPM will come in around 6300-6500 or so depending on cam. They really like the bigger intakes and carbs. That will get you over 800.

Solid roller is worth another 25-30 HP.

Mainly depends on RPM you want to be in.




JIM

Orr89rocz
Jun 14th, 11, 9:47 PM
Turbo and shoot for more like 750 at the tires. 5-6psi should do it

wvnova
Jun 14th, 11, 10:43 PM
Turbo and shoot for more like 750 at the tires. 5-6psi should do it
i wish i could afford a turbo motor!

wvnova
Jun 14th, 11, 10:50 PM
thnx for the replies ,750 at the tires would be awesome. what combos would you go with to get there [750 @ the flywheel]. afrs are in the cards so is a solid roller. how about a rotating assembly, cam , intake ,carb and anything i'm missing. seriously i don't care i want rubber in all 5 gears. when that happens then i'll try to hook it up:yes:

Stikman33
Jun 14th, 11, 10:59 PM
Call up Mike Lewis, he's a machine shop owner and regular member on this board, under the name wolfplace. He would be a great contact to get you in that range.

540Hotrod
Jun 14th, 11, 11:11 PM
Search 540 and 555 on this site and you'll get tons of combos and dyno tests.


JIM

Sinister
Jun 15th, 11, 12:32 AM
I consider mine very streetable and I can easily light the tires until I let out in all three gears. Even rolling along at 50mph it is will easily break them loose. :thumbsup:

Contact Mark Jones or Mike Lewis either will set you up and at a much better price than a crate motor. :yes:

Orr89rocz
Jun 15th, 11, 10:00 AM
i wish i could afford a turbo motor!

Too be honest, you could take your motor as it sits and just add a turbo and make the power you want for likely less cost than new AFR heads/solid roller conversion, if you can fab up parts. But I believe there are some turbo headers out there you can buy but just will add to the cost.

If you have any fab skills at all you can make a simple log manifold. Turbo would be the most expensive part but still half the price of new heads. Only a few lbs of boost will gain substantial power. My buddy's mild 496 on like 8psi made over 800 at the tires through a T56 and thats on a mustang dyno. My mild 401 sbc would take like 20psi to make those numbers but i'm through an automatic/high stall so it may only be 16-17psi :)

Just a thought. Few hundred bucks in piping fabbed up to make a turbo setup, new cam/new blow thru carb and your set :) I got 3500-3600 in my twin setup complete from headers to turbo to intercooler but I fabbed it all myself and the turbos are cheaper units but still good quality.

Either way, 700+ hp in a n/a big block is totally feasible so you cant go wrong there. N/a is less hassle than a boosted motor anyway and usually much more responsive.

wvnova
Jun 15th, 11, 9:12 PM
so with valve lash not really being a problem with solid rollers and shaft rockers , why would anyone use a hyd roller? thanks for the references on mike lewis. i have a local builder with a sterling reputation like mike's . i have talked to mike b4 i posted this so i kinda of narrowed it down to mike and my local guy. when i talked to mike i was considering reher / morrison but for what i want mike was a good bit cheaper. rm has a 565 that makes 800 hp for about $18000.

ryfrat
Jun 15th, 11, 9:30 PM
Some people don't ever want to set there lash or want the extra expense of the shaft rockers.You can't go wrong with Mike Lewis when your ready to build call him with your goals he will take care of you.

Tom Mobley
Jun 15th, 11, 10:15 PM
there's no reason whatever for anybody that knows what they're doing to adjust valves with the engine running. that's a part of the past.

Bolt
Jun 15th, 11, 10:56 PM
I dont know whats wrong with me, but if I was going to build another engine I would just build a 632 and call it a day. You could never grow out of it. It probably would cost about the same as a 540 so why not.

Tom Mobley
Jun 15th, 11, 11:27 PM
it'll cost more and be a lot harder to build. I remember a while back one of the builders here said: "God hates a 632."

540Hotrod
Jun 15th, 11, 11:35 PM
To build a 632 right takes some work and $$$. Just getting it balanced can be interesting..and then the oil pan etc etc. For sure it can be done and they are a heck of a lot of fun.....but everything just needs to get bigger and bigger!

But a 632 with some tight gears and converter would really set you back in the seat!

Then you can add some boost on top of that!


JIM

aukai
Jun 16th, 11, 2:57 AM
Well I'll throw my vote into this hunt. Steller service,super to deal with honest to a fault. You will get a good deal. I told Mike bad manners will be tolerated.

Slowpoke70
Jun 16th, 11, 3:35 AM
I don't recall exactly how many horses Rowdy's car has, but that Lewis/Rowdy 540 packs a punch and Rowdy drives it all over Vegas, it's quite entertaining to ride shotgun when he goes down the street for cigs. Inspiring.

aukai
Jun 16th, 11, 2:41 PM
Iirc 760

Daryl yost
Jun 16th, 11, 6:10 PM
procharge your current motor!

Bolt
Jun 16th, 11, 6:34 PM
Ok so a 632 a couple of bucks more. I would just let the balancing and machinig issues be Carl @ CNC North East or Mike Lewis's problem. Heck those two just love a challange. Every time you got used to the power you could do like Jim said ad some boost. Sorry like I told you guys there is something wrong with me lately 1,000 HP just seems to common. I need more. Am I a junkie?

Daryl yost
Jun 16th, 11, 7:08 PM
What is your budget for this up grade $5000,$10,000,15,000 or $$$.

wvnova
Jun 16th, 11, 8:27 PM
What is your budget for this up grade $5000,$10,000,15,000 or $$$.
approx. $15000

wvnova
Jun 16th, 11, 8:28 PM
i thought of a procharger but i got 9.5:1 cr.

wvnova
Jun 16th, 11, 8:30 PM
approx. $15000
woops $10000

Orr89rocz
Jun 16th, 11, 8:58 PM
You have aluminum heads right? Is 9.5 to 1 too much for big blocks for boost? Because with small blocks you can get a decent amount of boost on a 9.5 to 1 motor with aluminum...my motor is 9 to 1 and i ran upwards of 18psi with no issues so far on 93 pump gas... just a safe tune tho

Darracq
Jun 16th, 11, 9:05 PM
Put it on E 85 with the boost should be fine? You can make so much power and even be easy to drive with a turbo.

wvnova
Jun 16th, 11, 9:48 PM
You have aluminum heads right? Is 9.5 to 1 too much for big blocks for boost? Because with small blocks you can get a decent amount of boost on a 9.5 to 1 motor with aluminum...my motor is 9 to 1 and i ran upwards of 18psi with no issues so far on 93 pump gas... just a safe tune tho
nope iron merlins. i would like to switch to aluminum on my next motor.

Greg Owens
Jun 16th, 11, 11:21 PM
With a $10,000 budget you could do the ProCharger AND the heads probably. I am at 9.3:1 and run lots of timing. You could easily run at 9.5:1 with either methanol injection or an intercooler and some conservative timing. Problem is you'd way overshoot your goal of 750 HP.:thumbsup:

4drsleeper
Jun 17th, 11, 3:31 AM
I don't recall exactly how many horses Rowdy's car has, but that Lewis/Rowdy 540 packs a punch and Rowdy drives it all over Vegas, it's quite entertaining to ride shotgun when he goes down the street for cigs. Inspiring.

YUP!!!!! Like 753HP/672TQ.... It's a blast and will hit the 7600 limiter faster than you can blink. With 3.55 gears too!!! It IS inspiring, he convinced me that I didn't need 4.10 gears lol. Stuck with my 3.73's.

godsend
Jun 17th, 11, 6:36 AM
A turbo motor based on your 509? Just add a coldside, hotside and change carb... No intercooler is needed and with that low hp your cam will be ok...

ripdog28
Jun 17th, 11, 8:09 AM
Rebuild the 509 to 540 or so with forged internals and some 315 cnc AFR's then add a procharger. Easily hit 1k and about $10k or less.

ryfrat
Jun 17th, 11, 9:06 AM
Sorry to say this but 10,000 is not going to get you 700hp

ryfrat
Jun 17th, 11, 9:10 AM
F2 procharger kit 6000
heads 3000 +
carb or injection 1200 to ?
fuel system 1000
new internals,boost rated pistons,and rings 1000
and so on

mfret1970
Jun 17th, 11, 9:37 AM
Sorry to say this but 10,000 is not going to get you 700hp

Beg to differ....http://vortecproperformance.com/engine_combinations.html

ripdog28
Jun 17th, 11, 11:12 AM
Beg to differ....http://vortecproperformance.com/engine_combinations.html

Even at that his 700hp 496 on pump gas from what i have seen is well over 700hp mark.
I would actually call up Mark and see if you can send him your stuff. He has ported Iron heads that flow better then the AFR's... Your 509+ci with some MJ ported Irons would make over 700 easily. You should call Mark up.

Orr89rocz
Jun 17th, 11, 5:34 PM
With carb, conservative timing, and low boost, it will make 750....problem is if you want more down the road, it may not beable to take much more boost with 9.5 compression on irons. And trust me, boost is addicting, just like nitrous

A MILD 5-6psi wont hurt the current motor with good tune and intercooler if you can fit it. 5-6psi on top of the merlin is easily 700+ hp on motor. That is a MILD setup :)

And for that you likely wont need 10K to build it. Dont even need heads, just maybe new cam/springs if you'd like but at 5-6 psi its not necessary

godsend
Jun 18th, 11, 6:21 AM
My 516cui i aimed for a 1000hp and around 7 psi... With 7 psi it was fun for 2 days on the streets.

So i put in a 14 psi spring... wow. Thats fun... 2 days later i wanted more...

GRN69CHV
Jun 18th, 11, 8:40 AM
Very easy to make dyno power. Much more difficult to keep that power when installed and get it to the ground.

eric13617
Jun 18th, 11, 4:17 PM
Very easy to make dyno power. Much more difficult to keep that power when installed and get it to the ground.

Like I like to say; when you start making real power, those deep gears are for the birds.
My buddys stock susp., 383ci., Nova clicked off a 98mph. 1/8th. mi. pass with a 3.08 rear gear, the other night.:yes: No boost. No Nitrous. Just balls.:thumbsup:

cuisinartvette
Jun 18th, 11, 6:07 PM
5-6 lbs of boost and call it good. Youll have a heck of a time hooking up.

Dont get caught up with dyno queen #s.
Lots of super quick cars out there with less they are just set up right.

LevonH
Jun 18th, 11, 6:45 PM
Chain being yanked here?

11 posts and playing? Hope not but...................

wvnova
Jun 18th, 11, 8:10 PM
well the idea is to sell my motor locally for $5000 then i would have $15000 to spend. we'll see how that goes