Quote:
Originally Posted by 130R
Sorry, but you guys are out of your minds…
Go ahead and add 100HP. Now you'll have too much HP to come out of the corners well.
The bigger brakes on the ZL1 don't stop it faster. They're simply there to reduce brake fade. Brakes stop the wheels, tires stop the car. With equal tires on both cars, the lighter car stops shorter…
As for building the car, I've done it, but with an SS. I put a supercharger on it, but if I were to do it again, I'd go NA with a cam.
I have $10K in parts (did all the work myself). I have over 600 HP. The car when corner-balanced weighed 3700 pounds with 1/2 tank of gas (Vs 4120 pounds for a ZL1). I consistently brake and hit peak lateral loads of 1.2g (essentially the limit of street tires).
I've driven the car HARD for 2 years and 36,000 miles without issue.
It's nowhere as difficult, nor as expensive as you'd like to think...
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+1 If you are building for the track FI big HP is not ideal. What you can do is a small pulley with no other LS3 mods and get 500 manageable RWHP with the only power mod being the centrifugal supercharger (or single turbo for that matter). Both have similar power delivery that is less abrupt than other SC types. And the centrifugal at least does not add to LS heat soak. So if you start with a 1SS 1LE and simply add FI, you have a car that will run with a stock ZL1 on any track straight or curved.
But if road racing competency is the car goal, then I think adding a CAI and LTs along with some carefully selected suspension mods would allow the 1LE to run with stock ZL1s on a road track. Racing at 8+ tenths on a road track requires more than average competency even with 380 RWHP. So if you go big and you are not experienced, go to class.
If you want a 4 seat car that does everything well, road racing, drag strip, and cruising with a warranty the ZL1 is hard to beat. If you are looking for a pure track car the 1LE is the better choice. Especially if you like modding. And if you mod carefully you can spend less and get the same performance with equal reliability. What you will not get with a modded 1LE is a drive train warranty and a nice ride when you are not racing.