cammed ls1 vs heads/cammed lt1
#1
cammed ls1 vs heads/cammed lt1
Me- Mods in sig. Stock suspension , mail order tune bald tires
Him- Alot of suspension upgrades, Pacesetter Longtubes, $400 in dyno time, ZR1 315's, Juice
So it went down today. First run we hit it from about 35mph and i spun off the jump and then we were pretty even til about 80 and he started pulling harder. We let off at about 100 and he had about a car length on me. The second run we hit it at 40 and i didnt spin , I put like 3 cars on him. I wanna say that he sprayed on the first run but who knows. I think my lt1 held its ground pretty well. Considering im on 2.73's and bald 235's , with a mail order tune and stock injectors. Also his car is a 98 and when I told him I had 2.73's he said that he did too. I didnt think ls1s came with 2.73's?
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Him- Alot of suspension upgrades, Pacesetter Longtubes, $400 in dyno time, ZR1 315's, Juice
So it went down today. First run we hit it from about 35mph and i spun off the jump and then we were pretty even til about 80 and he started pulling harder. We let off at about 100 and he had about a car length on me. The second run we hit it at 40 and i didnt spin , I put like 3 cars on him. I wanna say that he sprayed on the first run but who knows. I think my lt1 held its ground pretty well. Considering im on 2.73's and bald 235's , with a mail order tune and stock injectors. Also his car is a 98 and when I told him I had 2.73's he said that he did too. I didnt think ls1s came with 2.73's?
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#2
Yeah man... Sounds like you held up your end.
The LS1 in the 98 breaths better; by a fairly decent margin... so it's gonna have the edge up top. And there's where your 273s actually helped ya. Ya started from a roll, so that worked to your favor there... I don't recall what the 98 has... Seems the manual was a 3.43, if memory serves. That's what my 96-auto had in her...
Your mods gave ya the 40 or so HP deficit that ya had stock for stock... I don't recall the numbers off the top of my head; but it seems like the 98 Z came with 315... and your 95 around 275.
I doubt he juiced ya. You'd have noticed... it's not all that subtle.
You should try the same run having him lay into the sauce; you'll see right away what I'm talkin' about. Revs roll up really quick and assuming he's jetted for a typical 75 shot... everything else being equal, he'd eat ya alive.
Sounds like a gas tho'... thanks for sharin'.
The LS1 in the 98 breaths better; by a fairly decent margin... so it's gonna have the edge up top. And there's where your 273s actually helped ya. Ya started from a roll, so that worked to your favor there... I don't recall what the 98 has... Seems the manual was a 3.43, if memory serves. That's what my 96-auto had in her...
Your mods gave ya the 40 or so HP deficit that ya had stock for stock... I don't recall the numbers off the top of my head; but it seems like the 98 Z came with 315... and your 95 around 275.
I doubt he juiced ya. You'd have noticed... it's not all that subtle.
You should try the same run having him lay into the sauce; you'll see right away what I'm talkin' about. Revs roll up really quick and assuming he's jetted for a typical 75 shot... everything else being equal, he'd eat ya alive.
Sounds like a gas tho'... thanks for sharin'.
Last edited by OVA1; 11-18-2009 at 03:54 PM.
#4
By the way this might help my LT1 breathe better. check my intake manifold out, I need to get this bad boy off and clean it. You can even see the carbon caked on the openings and this stuff wont just wipe off.
Heres my powerplant
Heres my powerplant
#5
OP Why do you guys always down play your mods?
You have a full heads, cam, high compression LT1. Not a ''cammed LT1'' as you stated in your title.
And his was likley a cam and bolt-ons stock headed LS1, by what you describe.
And yes the power should be about even.
Also the 98 and up A4s came with 2.73s stock and 3.23 optional. M6 cars came stock with 3.42s.
Good kill but let's be honest about it.
You have a full heads, cam, high compression LT1. Not a ''cammed LT1'' as you stated in your title.
And his was likley a cam and bolt-ons stock headed LS1, by what you describe.
And yes the power should be about even.
Also the 98 and up A4s came with 2.73s stock and 3.23 optional. M6 cars came stock with 3.42s.
Good kill but let's be honest about it.
#7
BTW, if you want to get a good idea of how LS1s run, you can check my LS1 in the sig for a true cammed LS1 motor -- and that's only a 230/232 cam -- not a big stupid cam. It skulldragged most cars out there at 116+ mph -- that MPH is good for mid-11s with the right launch -- but enough bench-racing -- I only pulled a 12.2 out of it due to a crappy 1.89 60' on the 10-bolt.
Mike
Mike
#8
#9
His mods are far from downplayed. He's probably a little under-modded in a lot of ways. 1.5rrs instead of 1.6's. His headers look like mids.. longtubes would be better. Mail order tune, dyno tune would gain him a lot more. Stock injectors on his setup seem a bit small which is probably losing him a little power up top. 2.73 gears with that cam are not ideal. 3.73's are the recommended gear for that cam. If anything he's got a mildly modded LT1 at best. Stock LT1 castings, stock injectors, stock 2.73's, no dyno tune, less than ideal headers and less cam lift than almost any other CC306 car has with his 1.5rr's. I'd be willing to bet the LS1 is running LT's, better than 2.73 gears and 1.7rr's.
#11
No need to change the title
#13
#14
OP Why do you guys always down play your mods?
You have a full heads, cam, high compression LT1. Not a ''cammed LT1'' as you stated in your title.
And his was likley a cam and bolt-ons stock headed LS1, by what you describe.
And yes the power should be about even.
Also the 98 and up A4s came with 2.73s stock and 3.23 optional. M6 cars came stock with 3.42s.
Good kill but let's be honest about it.
You have a full heads, cam, high compression LT1. Not a ''cammed LT1'' as you stated in your title.
And his was likley a cam and bolt-ons stock headed LS1, by what you describe.
And yes the power should be about even.
Also the 98 and up A4s came with 2.73s stock and 3.23 optional. M6 cars came stock with 3.42s.
Good kill but let's be honest about it.
Dude's sig says he's got 'ported heads'... Now that could mean anything... and given the run report next the 98... it's fairly certain that it's not much of port job. No offense to the OP...
I've got stock, but fairly fresh heads; and a 218/224 565/570 cam and I will take down a stock 98 by over a second in the 1/8th... N/A.
I DESTROYED a wicked looking 02 Ws 6 TA ... a few months back. Dude wouldn't even look over when I slowed to give him the thumbs up...
And that serves reason as most of the LS units are running mid to low 8s at our track and that won't help ya much when the race is 7s.
A mild port to stock heads; does not a Head/Cam make... the guys runnin' 1.5 rockers.. so he's down a .1 on lift on an already mild cam compared to most.
And FTR... changin' the title to someone thread is nonsense. Quit being such a douche Kraest.
#15
ROFL... Now that's precious. Of all of the things he's doing regarding his mods... down-playing them isn't one of 'em.
Whatever he's done has only produced about 35 or 40 HP... over stock with MAYBE something marginally beyond that if the 98 was dyno tuned with basic bolt ons... call it 60 if ya need to and that's well of the H/C beam...
Last edited by OVA1; 11-19-2009 at 05:59 PM.