First track outing.... - Chevelle Tech
LSx Engine Discuss the LSx engine & associated components here.

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post #1 of 15 (permalink) Old May 17th, 20, 11:49 AM Thread Starter
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George
 
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First track outing....

Finally got some seat time with the new LS combo. Somewhat disappointing, but nothing broke and it was fun. Weather was sunny, mid 70's and 69% humidity. Figured on working with timing and get the stumble out of the launch.

Started with 26* of timing and shifting at 6500, also tried 6000 but was too low. [email protected] 1.84 60' Added 2* each pass and ended up 34* [email protected] 1.79 60'

Started working on the carb squirters. Started with 31-35 pink pump cams and ended up with 40/37 same pump cams...ran a [email protected] 1.77 60'

Old 388 combo in similar weather would have been 11.90-12.00 range at about same mph.

Good start, now to work on the tune/ catalog and see what is happening. May just be the difference in how the converter is acting. Traps about 5800 so some more gear might be useful. 60" was 1.68-1.72 with 388 depending on weather.
Jeff65SS, MarkP and 71350SS like this.

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
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post #2 of 15 (permalink) Old May 20th, 20, 10:29 PM
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Jason
 
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Cool so it’s close to the 388ci with 364ci. Is that stock heads?
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post #3 of 15 (permalink) Old May 21st, 20, 9:53 AM Thread Starter
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George
 
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Re: First track outing....

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Originally Posted by Jasons 69 Chevelle View Post
Cool so it’s close to the 388ci with 364ci. Is that stock heads?
Yes, stock 862/706 heads other than upgraded trunions and valve springs. Motor came with 317s but were cracked. Friend gave me these...

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
 
post #4 of 15 (permalink) Old May 23rd, 20, 8:56 PM Thread Starter
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George
 
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Re: First track outing....

Think I figured out where the missing power was hiding I thought it should have....going thru the MSD 6014s software, there is a page for coolant temp...it was set to add 5* when cold then pull 8* when it warmed up..so as it was going down the track, the timing was getting pulled...set that back to zero and now it feels much more like it should even with timing at 29*.....see how it does tomorrow...
shelteredv likes this.

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
post #5 of 15 (permalink) Old May 24th, 20, 10:02 PM
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Re: First track outing....

I have friend with a 99 camaro with a truck 5.3 in it with a Brain Tooley cam. He has only ran a best of 12.99.

Finally, I got him to advance the timing to 34* from 30*. He was running in the 13.20's before doing this.

He only has street tires and they are worn out.

I feel he would be right at mid 12's if he would get some tires and free up the suspension.

I have not really been impressed with mild LS stuff. Im very impressed with a stock LS and a turbo on it, but a cam upgrade and tune....dont see much there.
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Currently undergoing a metal work to remove all rust, if I ever get there.

Cant decide on prostreet or cruiser with a 4 speed.
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post #6 of 15 (permalink) Old May 25th, 20, 10:36 PM Thread Starter
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George
 
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Re: First track outing....

Quote:
Originally Posted by Aaron View Post
I have friend with a 99 camaro with a truck 5.3 in it with a Brain Tooley cam. He has only ran a best of 12.99.

Finally, I got him to advance the timing to 34* from 30*. He was running in the 13.20's before doing this.

He only has street tires and they are worn out.

I feel he would be right at mid 12's if he would get some tires and free up the suspension.

I have not really been impressed with mild LS stuff. Im very impressed with a stock LS and a turbo on it, but a cam upgrade and tune....dont see much there.
Guy I race with has a similar Camaro...5.3 cam, holley 2 barrel on alcohol...runs 11.90s. Starting to get it sorted out, going to need converter work. I know they make power, just have to get the ones and zeros in the right places.

Figured out the datalogging in the msd, pretty nice.

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
post #7 of 15 (permalink) Old May 28th, 20, 11:58 PM Thread Starter
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George
 
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Re: First track outing....

Looks like I have some hp missing....talking with a fellow racer. He has a malibu, carbed 6.0 similar specs, converter, 4.11s 3400 lbs...he runs 11.30s. Time to start investigating....

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
post #8 of 15 (permalink) Old Jun 19th, 20, 12:07 PM Thread Starter
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George
 
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Re: First track outing....

Well the LS does seem to like a bit of nitrous....after some thing on the carb, finally got it to leave clean. Had to go way smaller on the squirters, never had to do that before. Ended up with 28/28. 28* timing seems to be the magic number. Ran a best of [email protected] 1.79 60' Could see on the datalog the converter is flashing to 4200, lower than with the mud motor by 300rpm.

Set up the msd to pull 6* of timing on a 52 jet to start. Ramping in the nitrous over 1.5 sec dropped the time to [email protected] 1.63 60' Converter flashed to 5200 and bottle pressure was only about 875. Looks like I can add back 1 or 2* of timing. Also going to scale back the ramp to 1 sec and see how it does.

Doing research looks like my heads are what is holding it back. Looking for a set of 823 now and swap the Vic Jr for a Super Victor and see how it is...then take a look at the cam.

Overall, for basically a cam only 370 ci in a heavy car 12.30's at around 110 seems ok. Stock 862 heads flow [email protected] 600...stock 823 [email protected] what happens.
mr 4 speed likes this.

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
post #9 of 15 (permalink) Old Jun 26th, 20, 1:56 PM Thread Starter
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George
 
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Location: Upper Sandusky, Ohio
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Re: First track outing....

Picked up a set of 823 rectangle port heads, should be here in a couple days.

Next to figure out which intake to go with....Vic jr or Super Vic...and a more appropriate cam.

Car was happy bringing the nos ramp in .5 sec faster (1sec). May try another .5 and see how it likes that.

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
post #10 of 15 (permalink) Old Jun 26th, 20, 5:48 PM
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Steve
 
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Re: First track outing....

Quote:
Originally Posted by Geo71 View Post
Car was happy bringing the nos ramp in .5 sec faster (1sec). May try another .5 and see how it likes that.
Why are you using the progressive controller? Have you tried no delay? I ran up to a 225 shot on my car with no delay. I had a controller on it but never found the need for it at the track.

'69 Camaro - 429 SBC Dart Iron Eagle 9.325" block, Crower crank, Crower 6" Billet rods, Ross pistons (10:1), Total Seal S/S rings, AFR 245 heads, T&D steel rockers, Cloyes Timing Set, 4-7 swap solid roller 274/286 @ .050", .704" lift, Dart single plane, Dominator EFI, Stef's #1705R pan, F2 Procharger on E85
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post #11 of 15 (permalink) Old Jun 27th, 20, 2:47 AM Thread Starter
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George
 
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Re: First track outing....

Quote:
Originally Posted by Steve69SS396 View Post
Why are you using the progressive controller? Have you tried no delay? I ran up to a 225 shot on my car with no delay. I had a controller on it but never found the need for it at the track.
On Friday nites last year, the track was usually torn up by the diesel pickup and street tire people. Using the progressive was handy to keep from spinning off the line.

Just finally getting some seat time with the new combo and the nitrous and box was setup from last year. Track prep is alot better this year, probably wont need the delay.

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
post #12 of 15 (permalink) Old Jun 28th, 20, 4:14 PM
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Brian
 
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Re: First track outing....

My old 2000 Z28 was 3530 lbs w/o me in it. AFR 205s, FAST 90mm, almost 12:1 CR, 4400 RPM lock up converter, 4L60E, 3.73 gears, 275/60-15 MT Drag Radials. Cam was a 228/236 @ .050, 114 LSA, around .600" lift. 1.75 -> 1.875 step headers, 3" duals with an X and Dynomax bullets. Car made 479/443 and went a best of 10.777 @ 124.94 on a 1.504 sixty foot. Engine was an aluminum 5.7L LS1. As a bolt on car with stock gears and an unopened engine - it went 12.20s @ 111-112 in the FL heat.

I am thinking that the 8702 is a lot of cam for those 862/706 heads. The 823 rec ports will wake it up despite dropping some compression. Looking forward to seeing your results.

1972 SS 454 Chevelle - 468/M21/3.73
1969 Malibu L48/M20/3.31 -> L72 swap
1968 Malibu 307/PG -> LQ9/80E swap

Quote:
Originally Posted by 69-CHVL View Post
How do you retire from something you rarely do?

Its like a welfare reciepiant saying there done working...
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post #13 of 15 (permalink) Old Jun 28th, 20, 8:31 PM Thread Starter
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George
 
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Re: First track outing....

Quote:
Originally Posted by carpoor View Post
My old 2000 Z28 was 3530 lbs w/o me in it. AFR 205s, FAST 90mm, almost 12:1 CR, 4400 RPM lock up converter, 4L60E, 3.73 gears, 275/60-15 MT Drag Radials. Cam was a 228/236 @ .050, 114 LSA, around .600" lift. 1.75 -> 1.875 step headers, 3" duals with an X and Dynomax bullets. Car made 479/443 and went a best of 10.777 @ 124.94 on a 1.504 sixty foot. Engine was an aluminum 5.7L LS1. As a bolt on car with stock gears and an unopened engine - it went 12.20s @ 111-112 in the FL heat.

I am thinking that the 8702 is a lot of cam for those 862/706 heads. The 823 rec ports will wake it up despite dropping some compression. Looking forward to seeing your results.
Thanks for the info.
10.70’s would be great! Sounds like it was a good setup.

Went a [email protected] the other nite on 100 shot. Last 660 fell off, bottle was getting low. 60’ went from 1.82 on motor to 1.57.

I had no idea on the cam, thought with the extra compression it would be an ok choice. Im thinking/ hoping the heads are just too small. Thinking the cam will need alot more exhaust duration looking around at what is typically out there. Haven’t decided to swap cams or not yet.

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
post #14 of 15 (permalink) Old Jun 29th, 20, 7:59 PM
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Brian
 
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Re: First track outing....

Quote:
Originally Posted by Geo71 View Post
Thanks for the info.
10.70’s would be great! Sounds like it was a good setup.

Went a [email protected] the other nite on 100 shot. Last 660 fell off, bottle was getting low. 60’ went from 1.82 on motor to 1.57.

I had no idea on the cam, thought with the extra compression it would be an ok choice. Im thinking/ hoping the heads are just too small. Thinking the cam will need alot more exhaust duration looking around at what is typically out there. Haven’t decided to swap cams or not yet.
I had that car running those times back in 2008-2009, it ran well for what it was. As for the cam, I wouldn't mess with it. Search Richard Holdener on YouTube, he debunked the whole "wrong cam" theory. Pretty much proved that there isn't enough of a difference to matter as far as cathedral vs. rec port cams.

1972 SS 454 Chevelle - 468/M21/3.73
1969 Malibu L48/M20/3.31 -> L72 swap
1968 Malibu 307/PG -> LQ9/80E swap

Quote:
Originally Posted by 69-CHVL View Post
How do you retire from something you rarely do?

Its like a welfare reciepiant saying there done working...
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post #15 of 15 (permalink) Old Jun 29th, 20, 9:12 PM Thread Starter
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George
 
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Re: First track outing....

Quote:
Originally Posted by carpoor View Post
I had that car running those times back in 2008-2009, it ran well for what it was. As for the cam, I wouldn't mess with it. Search Richard Holdener on YouTube, he debunked the whole "wrong cam" theory. Pretty much proved that there isn't enough of a difference to matter as far as cathedral vs. rec port cams.
I watch alot of those vids. With the boost stuff he does, not alot of difference. Even with heads. Just some take more boost to make the same hp as others. With the current cam, it may be abit tight on ptv clearance. See where it ends up and go from there.

'71 Malibu
3580 #, 6.0 LQ4, Summit pistons, Summit 8702 cam, vic jr, AED 750hp, msd 6014, 11.5:1 compression, NOS Cheater plate
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

355 [email protected]
125 [email protected]
388 Mud Motor- [email protected]
100 shot [email protected]
'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
Geo71 is online now  
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