94 m-6 didnt remember your head work. Heads, cam, complete exhaust? :thumbs:

 

ok ok i know this subject has been beaten to death but i feel the LT4 is getting just a tiny bit of a bad rap here. i dont remember who all said what but i feel the need to throw in my two cents. I dont know who said the LT4 wasnt getting very quick times by car and driver but let me say there is quite a few ppl that beleive that GM gave those big magazines detuned LT4 cars. if you want real 1/4 times, look at patricks car. he has a almost bone stock gs that ran a 12.89 i think thats pretty damn fat if you ask me
LT1s run about 13.4-13.7. As for the Zo6s. i dont know what GM rates them at but i have seen them with my eyes at the track run 11.9 with good dtreet tires. thats pretty unbeleiveable. Now, having said all that i do agree with everybody that if you plan to mod the hell out of a motor to get a LT1 since they are cheaper to start with and EVERYTHING is interchangeable with an LT4. you can build up a lt1 so strong it isnt even funny look at hoover running a bored out lt1 block in a 93 vett naturally aspirated running 10.64! you could do that with a lt4 or lt1 doesnt matter. I guess i dont really practice what i preach much though because i have big plans for my engine including a tear down where i bore and stroke it to 396 but i had to start out with a LT4 though! so take all this information and decide for yourself. all vett motors are good engines

 

Oh boy.....first off....the driver IS the most important part of the car but that has nothing to do with how good one car is versus the other car. The ONLY way to compare is equal driver , conditions, dyno, track etc. etc.

Given all that and taking the AVERAGE vehicle of its type, an LT4 will soundly beat an LT1 in just about every acceleration and top speed test you can throw at them. LT4 dont weigh any more than comparably equipped LT1's , so I dont know where you are getting that info, and Car and Driver getting relatively slow times (still better than their best LT1) for the LT4 means almost nothing. Again on dragstrips across the country LT4's on average are at least 3 tenths and 3+ mph better than average LT1's.

As for potential , LT4's are better there as well their heads flow better stock and modified as do their intakes and their stock bottom ends are better (as stated above). LT1 can be very close but are just not as good.

And remember , all the things you can do to your LT1 you can do to your LT4 and again , it will be that much better.

As I stated in my original post , if I wanted to keep them relatively stock to lightly modded , go LT4 the extra 30-40 rwhp head start is worth it. If you are going to extensively modify it buy a LT1 for less and spend that and mod money on go fast goodies........ :)

 

That link that compares the lt1 2 lt4 shows the lt4 weighs 215 pounds more than the lt1. :skep:

 

Patrick certainly shows what the LT4 is capable of, but I think I've shown what the LT1 can do.

The Z06 definitely blows all away in the 1/4, I've seen '01's doing 12.00's In the right hand timeslip, that is Dave T's 94 six speed(left) vs my 95 six speed(right),both cars were stock except Dave has a 3.92 gear, in the left hand timeslip, car #4477 is mine and the car was completely bone stock.

In this timeslip, it's my '95 six speed stock(with only mufflers removed, which slowed me down-look at the mph) vs 65 Z01 in his '88 L98 automatic

 

As I stated in my original post , if I wanted to keep them relatively stock to lightly modded , go LT4 the extra 30-40 rwhp head start is worth it. If you are going to extensively modify it buy a LT1 for less and spend that and mod money on go fast goodies........ :) [/QUOTE]

Speaking with a tuner that did tones of mods to each, I inquired if buying the LT4 stuff to stroke my LT1 is better, his response is "its not worth it for such minimal gains"
Like I said, i'd only trade my LT1 for an LT4 if it was a spectacular price difference, or else I jump to a Z. And its only 20rwhp, LT4's are not that underated, besides the LT4's are great engines but not still better than the LS1's, even if they say it equil in hp. and I stand by that 100%, A heads and cam stage 1 package for and LS1 will easily make way over 400rwhp not to mention how cheap too.

 

tailgunner...

i didnt realize, or forgot, that he had head work done. Nevertheless, those are reasonably easy mods to make that kind of power.

In the original post im talking numbers on a dyno, I know track times are more up to the driver than the car, but im just talking pure power of hte car.

Im still happy with my choice after reading all this

 

My 353 rwhp is SAE corrected. Backing out the driveline loss factor of 15%, AND backing out the SAE correction factor that day of .94, My engine was making 441 crank HP that morning .

This thing is fun to drive. Hehehe!

 

I was looking for a LT1 when I bought my 96 LT-4 CE and only paid $14K for the car with only 51k miles, almost $16,000 dollars worth of receipts of various performance upgrades etc. Not to mention the original set of wheels and a truckload of original parts, at that price I would have had to drag myself down a gravel road if I passed it up. I bought the car with everything that is in my sign, I added the GS stripes and emblems and painted the interior trim. But I think that stock for stock the LT-4 is worth the extra 3 grand over a stock LT-1 since a LT-4 car should hold it's value better so you have resale on your side as well.


:steering: :steering:

 

To address the original post;
The stock LT-4 is not as strong as a stock LT-5.
The stock LT-4 is stronger than a stock LT-1.
Anyone care to argue?
:D

Start buying performance modifications and all bets are off...

Larry
code5coupe
:seeya

 

Don't forget: the LT1 and LT4 weigh the same, the LT5 weighs ~200lbs more.

Eric

 

All I know is that Hutch and I (he with the 96 GS and me with a 92 LT1) both had the same head/cam package from MORE performance. The only difference between the 2 cars is I had long tube headers and he had shorties. He also had Drag Radials, 4.10 gears, line-loc and a shift light. I was running street tires and stock 3.45 gears.

We lined 'em up 4 times against one another and the result was the same every time. He would pull 2 car lengths on me out of the hole and I would run him down everytime. It wasn't by much but I would nip him at the finish line every time.

That's not saying one is better than the other but I think with mods, they are a lot closer in performance than you think. Stock-to-stock, however, is no comparison (with drivers being equal), the LT-4 is a good 4-5 tenths quicker imho.

Mike


[Modified by luvmy92, 12:36 PM 12/21/2003]

 

Gee - I wonder why this topic has never been discussed here before ? :jester

Are we evaluating them in a quarter mile? Top speed? Acceleration 30-70? Or what?

This debate will never end. My suggestion is to have a really good drag racer (Mojo, Mackey,....) take two totally stock cars, one LT1 and one LT4 that have exactly the same options, the exact same mileage, the exact same care and maintenance histories, and were assembled to the exact same tolerance variations - and run each of them about ten times under the exact same conditions. Now, you might have a valid comparison. Everyone who compares times to someone else is overlooking the fact that no two drivers are equal and it dowesn't take much skill/experience difference to make a 1/10 second in a quarter mile.

Since that's impossible, the debate will continue forever. Why not look at basic available facts:

LT1 = Great engine, relatively powerful @ 300HP factory rating
LT4 = Great engine, slightly more power @ 330 factiory rating better 1/4, by a small margin.
LT5 = Much more advanced & exotic engine technology, great top end, but nose heavy. If you're driving the Silver State, it's the only way to go.
Z06= Wish I had one - all around winner :D

Merry Christmas :flag

 

Now you are talking and I have an LT-4. I would love to have a Z06.

 

Speed750, the weights at that link for both engines are comletely bogus. Iron block small block Chevys with aluminum heads all run in the low to low-mid 500 lb range. I would be surprised if there is more than a 20 pound weight difference between an LT-1 and LT-4 engine and wouldn't bet on which one is lighter.

Is there a moderator who understand that those numbers are bogus who can remove them from that page?

Dick


[Modified by xs650, 3:44 PM 12/21/2003]

 

Thta'd be kind of hard since the link is to a different forum.

 

I thought you guys were Gods. :jester

 

HAHA MOJO I wasnt reffering to you in my post!
HAHA YOU are a god when it comes to driving an LT1! i have never seen anyone run as good a time as you in an LT1! i have see quite a few ppl run under a 13 in an LT4 though. either way i am getting like everybody else and getting tired of this debate. Congrats again on that amazing time MOJO!

 

:cheers:

 

If i'd ever go to N.J. I'd hand over the keys to MOJO just to see what he'd run and hopefully it came back around in one piece. :lolg: