[tjZ28]

****************************************************

So that brings me back to my actual question: can a LT1 Fbody be Nationally Competitive in ESP?

Let’s face it even with every ESP legal motor mod a LT1 is only going to do maybe 275RWHP. LS1 cars are doing 290-320 RWHP STOCK and with the full array of ESP legal motor mods can put down probably 350RWHP. I’ve heard of a few ESP cars that claim 400RWHP ESP legal, but frankly I don’t buy that (I’ve been around the LS1 community a long time and outside of this particular car/driver’s claim I’ve never seen a bolt-on LS1 make those kind of numbers).

On top of that a LT1 car is probably an extra 100lbs nose-heavy.

So, what do you all think: Can a LT1 still be Nationally Competitive in ESP, obviously excluding the driver issue? (IMG:http://www.frrax.com/rrforum/style_emoticons/default/wink.gif)

-TJ

This post has been edited by tjZ28: Apr 21 2008, 08:36 PM

[tjZ28]

So this would be fully legal, correct: http://www.sdparts.com/product/12534776/19...vroletYLT4.aspx

Also, would a LS1 (and LS1-era T56) swap be legal in a '97?

-TJ

[Racer X]

So this would be fully legal, correct: http://www.sdparts.com/product/12534776/19...vroletYLT4.aspx

Well, here's a problem that I see...

Notes: Does not include Inlet Manifold, Exhaust Manifold, Starter,
Flywheel, Water Pump, Ignition or Attaching Parts

GM no longer has the intake in production. Good luck finding one.

Also, would a LS1 (and LS1-era T56) swap be legal in a '97?

I believe so but why would you want an LS1 vintage trans?

[tjZ28]

GM no longer has the intake in production. Good luck finding one.

I already have the manifold lined up, besides aren't intake manifolds unrestricted?

so but why would you want an LS1 vintage trans?

Sorry if my wording was confusing. I meant to swap in a LS1 motor + the appropriate trans for the LS1 (since as far as I've seen there is no legal way to run '93 gearing behind a LS1 due to the different input shafts).

-TJ

[Racer X]

I already have the manifold lined up, besides aren't intake manifolds unrestricted?

Yes, but I'm not sure how that would play into an engine swap. I *think* since the rulebook reads that any swap must be done as a unit, you would be required to use the LT4 manifold. Besides, is there an aftermarket intake that will fit the LT4? The new Edelbrock might. I don't know.

I don't know if a modified LT1 intake would work since there are some restrictions on porting as well.

[Mojave]

I already have the manifold lined up, besides aren't intake manifolds unrestricted?

Yes, but I'm not sure how that would play into an engine swap. I *think* since the rulebook reads that any swap must be done as a unit, you would be required to use the LT4 manifold. Besides, is there an aftermarket intake that will fit the LT4? The new Edelbrock might. I don't know.

I don't know if a modified LT1 intake would work since there are some restrictions on porting as well.

What he said. You can do whatever you want to the intake. Port it, use an aftermarket LT4 intake, or even a carb'ed LT4 intake if you really want to.

Edelbrock does make an LT4 Airgap; some guys on LS1Tech actually have one.