We also don't have a opti, less power, and less gas mileage.

 

i stand corrected
thanks for the tidbit of info though

 

Arent the ls1's gas tanks bigger? how do they get better gas mileage.. And if they have better flowing heads, doesnt that mean that if we get ported heads to their specs and the same cam specs, and become faster than them, then we would have a better car? not bashing, just wondering.

Tim


P.S.. And 1.7 RR's. I think that if we just get 1.7 rr's on our cars, we jump close to 4-5 tenths quicker.... and if we got 1 and 5/8th manifolds.... Good god lt1's dont seem to be that slow when we have the right equipment from the factory.. Really doesnt matter what the ls1 guys say now, all I know Is I think I proved my own point.

Tim

 

As with any car, the gloves are off when it comes to modding. It just depends on who has the fatter wallet. I don't think that it can be argued that the LS1 isn't a step forward from the LT1 though. Heck, at least I would hope that powertrains would improve with each new iteration. The arguement that I can throw this or that on my car and be as fast as another STOCK car is kind of pointless if you ask me. What if the other guy mods his car? Just about anything can be made fast, different people take different paths. That is what makes being a car enthusiast fun IMO.


-Mike

 

That is all completely true, and there are upgrades... I was just saying that with

1.7rr's on an LT1 - 3-5 tenths
Ported heads to LS1 Specs - 3-5 tenths
Cam that has ls1 specs or close - 2-5 tenths
aluminum driveshaft... better ride


All of these added options would put a 13.9-14.2 second LT1 close to if not in the 12's or better... Thats all

 

Sounds to me like someone couldn't afford the LS1 so settled with the LT1, and brags about how great his crappy engine is!!

 

Hey don't rag on our crappy engines
Ten years ago the LT1 was the one with the crazy top end.
What I think would be nice is if they combined the best features of both engines (LST1???), don't think you could but it's a good theory. Monster low-end, monster top-end. Whatchall think? Low 12s out of the box? Or 11s?

- I would have gotten an LS1 but I couldn't afford it. So I bought the next best thing.

 

Itll be out soon enough... check out the threads on the LS2

 

No, I don't like LS1s and I don't like catfish.

I would take a LS1 WS6, though. But I'm only 18, so I'm not complaining what I drive.

And the LT1 is by far not a "crappy engine"

 

He asked the difference between the LS1 and the LT4.

Both dyno around the same horsepower(300rwhp). The LS1 has 18 degree heads, the LT4 has 23 degree.The LT4 is an aluminum headed iron block. The LS1 is an aluminum headed aluminum block. The LS1 heads flow better and have more potential due to being 18 degree heads. Both are great motors though and each have advantages over each other.

 

I really love the LT1 engine and know myway around it alot better than the LS1 (but I'm learning) but comparing stock vs stock there is no question performance wise the LS1 is the superior engine. Even mod for mod I think the LS1 will come out on top. Of course an LT1 can be modded to out perform an LS1 easily enough. Some of the excellent LT1 f-body used car prices make them very attractive buys compared to the LS1 f-bodies.
If I were going to buy another f-body I would rather have the LS1 but if I found an LT1 at much cheaper price I woudn't hesitate to buy it.

 

dont have much to say but i have driven both. only owned the lt1 though. but my friend bought a 99 ls1. and he let me drive it. very nice car but i dont understand this top end thing. i didnt notice anything. could have just been his car though. after i drove his i told him to put it up against my lt1. went to 85 and i had a car length, and from that poiint it looked like i could have kept leaving him. both were autos. mine had 120,000,,, his had 60,000. i dont understand all this ls1 crap. but i believe everything u are saying about it. i doubt gm would go into the future making a 350 that was not beter than the last one. ( lt1-ls1) later i am not in any way trying to say the lt1 is beter then the ls1. not trying to argue

 

I would expect that your LT1 was 1) modded, 2) running a higher gearset than his (opt 3.23's) or 3) there is something wrong with your friends car. Identical stock for stock cars, his should pull like a freightrain on yours at freeway speeds. Also... 0-85 is a good indication of driver skill, launch, traction, and bottom end. If they are identical and you really want to see what the LS1 has, run him 0-150 (legally of course) ... both cars will do it

Example.. my buddies M6 LT1 with all the boltons.. traps at 103
My LS1 traps at 107... That 4mph difference is the top end hp.
Most of the top end comes from the LS1 heads having significantly better flow characteristics than those of even a lightly modded LT1 head/chamber.

 

well my car has no mods besides kn filter. his was probably stock and he just bought it from a chevy dealership so it should have been in tip top shape. mine has stock gears and his probably did also. the highest speed i had mine was just over 155 then hit traffic, but it didnt seem like it was going to pull much more if any at all.

 

An LS1 makes a lot more power and pulls harder at the top end, it is an cast iron block with aluminum heads, while the LT1 is cast iron block and cast iron heads. The LS1 is also a much better designed motor.