Engine & Gearbox combination

[pneall]

Paul,

I had an LS1 and have just converted to an L76 using the LS1 PCM.

While the motor is cheap the conversion is not as you need reluctor, relocate knock sensors, fit mechanical TB, new followers , new cam, bolts, under driven pulley. You end up equalling the purchase price in modifications....but its the cheapest HP you will ever buy.I am expecting around 320 RWKW plus greatly improved torque characteristics over the LS1 Time will tell as I am a few weeks away from firing it up.

If you are looking for a nice street set up either the LS1 or L76 will light up your day bigtime

There is a rumour that GM is about to off load the LS2 engines as the LS7 is being brought in as a replacement....now that (LS7) would make a great Cobra engine

Regards,

phil

[Rebel1]

Hey Uncle Phil, why are you so conservative with your L76 power expectations?.

You say you expect 320 RWHP with a cam.

It's almost common place for a cammed L76 to be around 380 - 400 RWHP, and that's with a relatively mild cam.

Keep in mind the tuners are unraveling the mysteries of the E38 and are now getting excellent results.

The LS7 sure would be nice but like Bobby said......a 402 ci L76 would be cheap by comparison and a lethal combination.

I am of the belief that the 5374 heads on the L76 will work much better with 400 cubes.

[pneall]

Uncle Les,

I am old and got my units mixed up...what I am expecting is 320rwkw

Phil

[Rebel1]

Bluddy hell

Thank gawd it's friday.

Just as well you got it right uncle Phil or I would have had to deal with ya severely.

Now, get to work and get that thing goin. You're the first I know who upgrading from an Ls1 and I'm keen to hear your impressions.

[Plums]

While it's true that they are getting great results with the E38, it doesn't tell the whole story. The E38 is missing some of the great functions that were available with the older PCM's. E.G. Lean Cruise doesn't exsist in the E38 due to the stricter emissions requirements it must meet...
I'm pretty sure no engineer would pick the change.

I'm pretty sure you don't need to change the cam in an L76 to run the LS1 PCM. If you do change the cam you need to change the lifters I believe.

Rebel is right, the L76/L92 heads would be right at home with over 400 cubes, and when combined with a tasty cam and valvetrain should see around 350 rwkW's with awesome grunt down low.....

[Rebel1]

Originally Posted by Plums

Rebel is right, the L76/L92 heads would be right at home with over 400 cubes, and when combined with a tasty cam and valvetrain should see around 350 rwkW's with awesome grunt down low.....

Now I gotta get my calculator out...........again.