What kind of power do stock L98's make with a centrifugal supercharger? I did a search and found only found one result. It was about 350 RWHP and 410 RWTQ. Is that about average?

What kind of abuse can the bottom end take in an L98? How much N20/boost/ or HP is it capable of reliably producing?

Thanks!

 

there is no definative answer. I would suppose that you could get it closer to the 400 hp range.

 

There is no answer as to what the bottom end will take in stock form? I realize evey engine is a different, but there has to be soem sort of a stansard. Almost my expirence is LS1 or LT1 based, and botht those engines have difinitive limits on the stock bottom end.

LS1 are capable of about 550 RWHP With the stock internals, LT1's are closer to 430 or so.

Tha's kinda what I am looking for.

 

you can run *about* 7psi on stock internals......give or take 2psi.

www.procharger.com

go there and fill out the request info form for your year car and theyll mail you a WEALTH of information...for free!

 

It depends more on what you do to it then what power it's making. You can break a bone stock L98 if you want to (wing it up till it won't go any higher and see how long it lasts). OTOH, if done carefully, tuned (and possibly fueled) to prevent detonation and a reasonably safe tune you could probably push 700hp or so before things start spontaneously flying apart, and even at that point it's more a question of how you do it then what you're putting out.

As far as LS1's and LT1's… LS1's tend to get unhappy with the smallest screw up much easier then LT1's, toss their valve trains and have oiling/piston ring problems, not really anything that you can do about it and typically you've found it once you're making enough to run 11's (well before 550hp). A lot of these "stock" LS1's out there making good power are on their 2nd or 3rd rebuild/engine. LT1's have a tendency for 7 and 8 to run lean, breaking those pistons. Assuming you compensate for that you can get A LOT more power out of them the 400hp, probably more then a comparably treated LS1 (though it takes more work to get it since they don't have the LS1's killer heads).