LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Ls1 to Lt1 battle

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Old Jun 20, 2005 | 09:17 PM
  #46  
Kris93/95Z28's Avatar
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Re: Ls1 to Lt1 battle

Originally Posted by foxbat
no question, stock vs stock the LS1 wins, but i must call BS on all the guys who have a friend's brother's uncle's nephew's cousin who claim stock dynos of 320 and change, hello, the C5 corvette which had a more powerful version with a bigger cam was only putting down 350 at the crank. all these dynos showing stock fbodies putting down 315 and 320 at the wheels need to be re-calibrated. 320 at the wheels is like 370 at the crank. no fuqing way in hell is a stock fbody putting down 370 at the crank. the average correct dynos i've seen for stock LS1's are between 270 and 280 on the 98-99 models and 280-300 on M6 2000-2002. anything more from a stock car is horse dung.
Yes, everyone is lying to impress you.
Like I said before: Check out the November 2001 MM&FF.
Also, the cams in the F-Bodies and Vettes are the same.
The difference is in the manifolds/back on the exhaust and the air box.
Also the F-Body on average will dyno more than a Vette.
The Vette has IRS that saps more HP than the F-Body's solid axle.

Last edited by Kris93/95Z28; Jun 20, 2005 at 09:24 PM.
Old Jun 20, 2005 | 09:21 PM
  #47  
simple's Avatar
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Re: Ls1 to Lt1 battle

local guy around here had a '93 Z A4 full bolton car with 3.23's and a 3200rpm stall ran 12.5's consistantly at 106-108mph
he then sold it too another local guy and now he runs with the same mods, 12.4's all day long
never cracked a valve cover and on a stock tune if i'm not mistaken

i buy into it, its definately a runner!!
Old Jun 20, 2005 | 09:24 PM
  #48  
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Re: Ls1 to Lt1 battle

Originally Posted by Heatmaker
I remember searching one import board a few months back... and they were talking about the early 4th gen F-bodies with the LT-1... they reffered to them as "boats" then they praised the LS-1's as a superior car. And the irony is that most people think the same way when they hear about the LT-1 in later times.
I promise had they spent some time at the track and seen a big cam, good heads LT1 they might think different. But, most people that don't repect the LT1, do so because they haven't ran into the right one yet. As a prior owner of two LT1 cars I know they are good motors. Like said before, stock vs. stock it isn't a race. That doesn't mean it can't be a race with the right parts...
Old Jun 21, 2005 | 12:05 AM
  #49  
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Re: Ls1 to Lt1 battle

the only reason the ls1 is a superior motor is the much better valve ange in the heads. That is why the fastest cam only lt1 is 11.4x and the fastest cam only ls1 is 10.2x. Convert a set of 15* heads to lt1 block and you have yourselfe a fair game.
Old Jun 21, 2005 | 07:31 AM
  #50  
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Re: Ls1 to Lt1 battle

ummm foxbat, if I was one of those that you were refferring to, I have seen his dyno sheet from MTI when he was living in houston. He had it dynoed with a few of his buddies down there with 03 cobras and bone stock his car layed to the ground 321 rwhp and 333 ft lbs SAE corrected out of a 2002 6 speed. Believe all you want to believe but this is the honest to god truth. Im an LT1 guy myself, but I also have an open mind to the facts.
Old Jun 21, 2005 | 05:17 PM
  #51  
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Re: Ls1 to Lt1 battle

Originally Posted by Kris93/95Z28
Yes, everyone is lying to impress you.
Like I said before: Check out the November 2001 MM&FF.
Also, the cams in the F-Bodies and Vettes are the same.
The difference is in the manifolds/back on the exhaust and the air box.
Also the F-Body on average will dyno more than a Vette.
The Vette has IRS that saps more HP than the F-Body's solid axle.
errr, excuse me but what part of my post seeks your approval or your impression? also, you quote MM&FF? why in the hell would i give ford mag any credence? as for the cam i've read differently, and as for live axle vs irs the difference in dynoes is less than 1%. so regardless of cams, axles etc, what you're inferring is that stock LS1's could put down 370 and change at the crank?

and exactly why does GM, not advertise that number on the vettes? are GM dynoes all fuqed up and reporting wrong numbers, and all the other small shops with independent dyno operators who can come up with all kinds of variables, their numbers correct?

believe what you want, but all you LS1 worshipers will soon have rude awakenings as the LS2 and superior motors start hitting the street.
Old Jun 21, 2005 | 05:44 PM
  #52  
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Re: Ls1 to Lt1 battle

this whole post has deviated from it original intent and has gotten childish.
Old Jun 21, 2005 | 05:47 PM
  #53  
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Re: Ls1 to Lt1 battle

Originally Posted by foxbat
errr, excuse me but what part of my post seeks your approval or your impression? also, you quote MM&FF? why in the hell would i give ford mag any credence? as for the cam i've read differently, and as for live axle vs irs the difference in dynoes is less than 1%. so regardless of cams, axles etc, what you're inferring is that stock LS1's could put down 370 and change at the crank?

and exactly why does GM, not advertise that number on the vettes? are GM dynoes all fuqed up and reporting wrong numbers, and all the other small shops with independent dyno operators who can come up with all kinds of variables, their numbers correct?

believe what you want, but all you LS1 worshipers will soon have rude awakenings as the LS2 and superior motors start hitting the street.
Yes dude, everyone else who buzzed in, and Myself included are lying.
You can selectively Ignore facts all you want. But ignore something because it came from MM&FF? Don't you think they'd want to underplay the GM competition? Then again they are out to sell Fords, not Chevy's. I think that is a good source. As far as GM numbers go, they don't report true numbers on some models, the LS1 F-Bodies were a prime example of this. I guess everyone that mentions an LS1 pulling that much RWHP, and talks about running 12s is lying. NOTICE, there are more people buzzing in than me.

Also, I agree whole heartedly the LS2 is the better engine than the LS1. I never tried to fight that battle. BTW: Superior motors have already hit the street long ago, the 03 ~ 04 Cobra for one.
Old Jun 21, 2005 | 06:35 PM
  #54  
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Re: Ls1 to Lt1 battle

GM LS1 crate motors have hit 390/400 hp on an engine dyno, straight out of the crate. Dont remember which magazine I read it in, but saw it in more than one. My friends 01 SS M6 did go 12.89@110 with only a lid, I was there. LS1 is a superior engine for one reason only, a 15* head.

Mindgame on this board built a SB2(18* head) 396 solid roller with a LT4 intake, runs in the 9's all motor and is street driven with a full over the axle exhaust, And pretty much full weight. Not many 396 inch LS1's(if any) can make that claim.

The tables even when mods are started heads and cam cars even out even though a LT1 has a 23* head. A properly built 355 LT1 should put down 420RWHP through a six speed(most don't but they should), about what an average LS1 head cam six speed car puts down with a much better head.

Just my .02

David

Last edited by FASTFATBOY; Jun 21, 2005 at 06:46 PM.
Old Jun 21, 2005 | 06:39 PM
  #55  
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Re: Ls1 to Lt1 battle

It may be new to you but this is old old news...everyone knows the differances in the 2 motors...your a tad late on this seeing the LT1 was last produced 8 yrs ago
Old Jun 21, 2005 | 09:23 PM
  #56  
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Re: Ls1 to Lt1 battle

Originally Posted by Purplemaroz28
ls1 are superior cars stock to stock and bolton to stock even, but a heads and cam lt1 can hang with a heads and cam ls1 at the track. On the freeway above 100 might be a different story though
Not hardly.

My Cammed ls1 beat 2 Head/cam LT1's.After I throw the LS6 intake on it Im expecting 115mph traps. I ran it untuned and missing and trapped 113.

I love My LT1 but New tech is taking over.

Last edited by robb4964; Jun 21, 2005 at 09:44 PM.
Old Jun 21, 2005 | 09:33 PM
  #57  
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Re: Ls1 to Lt1 battle

fantastic, now stock LS1's are putting out 400hp at the crank.....bwahahahahahaaaaa!!!!

thread failure.
Old Jun 21, 2005 | 09:52 PM
  #58  
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Re: Ls1 to Lt1 battle

Originally Posted by foxbat
errr, excuse me but what part of my post seeks your approval or your impression? also, you quote MM&FF? why in the hell would i give ford mag any credence? as for the cam i've read differently, and as for live axle vs irs the difference in dynoes is less than 1%. so regardless of cams, axles etc, what you're inferring is that stock LS1's could put down 370 and change at the crank?



believe what you want, but all you LS1 worshipers will soon have rude awakenings as the LS2 and superior motors start hitting the street.
My Stock LS1 drug my full weight 99 TA to a 13.2 on street tires nursing it off the line@108 MPH 100% stock. Thats at least 360 HP to the flywheel.

As far as LS2's..Who cares? Its the same tech as an LS1 and everything it can do the LS1 can do. Im not jelous. Liter per liter the HP is nearly the same.
Old Jun 21, 2005 | 10:07 PM
  #59  
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Re: Ls1 to Lt1 battle

Originally Posted by foxbat
fantastic, now stock LS1's are putting out 400hp at the crank.....bwahahahahahaaaaa!!!!

thread failure.

Do I need to dig up the book?

David
Old Jun 21, 2005 | 10:43 PM
  #60  
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Re: Ls1 to Lt1 battle

Originally Posted by lt1srule
ill take the 97s 96 95 94 and 93s cause they look way better than the 98s and up hate that ugly front end they put on them love the lt1s better motors and better looking z28s
lol i got an lt1 ide sell ya



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