KC Henry

So I got Christine Dyno'd this weekend.

It Dyno'd 316 hp to the Tires with the Exhaust cut outs closed, and 323 hp with the cut outs open.

Not bad considering the 1998 Trans Am LS1 that is in the car is only rated at 305 hp at the Crank!

Rumor has it that the 1998 LS1's ( which is the first year for the LS1 being put T/A's and Z28's ) had camshaft problems, and instead of getting the camshaft meant for the 305 hp rated F-Body cars they got the Corvette's camshaft instead. Since the Corvette LS1's were rated a 345 hp at the Crank I am guessing my motor is one of the F-body engines that got the Corvette camshaft.

Automatics generally have a 10 - 20% drivetrain. So that means with 323 hp it put down to the tire translates to around 360-380 hp at the crank.

Anyways just thought I would share in the exciting news of my Dyno runs.

Here is a Video from this weekend too when a had a lil fun.

Ryan L

There is no such thing as a Corvette camshaft. The 98 LS1 is the same motor in the F-Body and Vette, making the same power. GM didn't want to step on the Corvettes toes so they advertised a lower HP for the F-Body.

E V I L

iTrader: (6)

Damn good smoke show. And 12.7 @ 104! Good job!

How much does she weigh?

KC Henry

There are slight differences between a Corvette LS1 (345 hp) and a F-Body LS1 (305 hp).

Just like in the 1993 Corvette LT1 (300 hp) vs the 1993 F-Body LT1 (275 hp) or the Iron headed LT1 of the Impala/Caprice (260 hp).

KC Henry

Thank you for the kind words!

With all the Fluids full plus me in the car, it weighs under 4,000 lbs.

GMTECH4

Christine is the ultimate sleeper! i love it, any pics of under the hood?

bene

iTrader: (16)

The slight differences are negligible. The only reason a Corvette is faster is the weight difference between the two bodys(of course with a comparable options ie tranny and gearing). LS1 is LS1. There is a reason why RUMOR is called a RUMOR= not a fact.

66deuce

iTrader: (1)

plus the vette got a little more agressive tune..but your right,they are the same motor...

KC Henry

spanky_pete

I am in love with your Caprice. I have had a number of 77-79 glasshouse Caprices & Impalas over the years, including one that was nearly the twin of that one.

Right now I am building a nice low miles original '77 that is screaming for a LSx conversion.

KC Henry

Thank you for the compliments! It is always nice to meet a fellow 77-79 Caprice/Impala Coupe owner.

May I see pics of yours? I think they respond well to just about any engine, but with an LSx engine swap I don't think you would be disappointed one bit.

s10-den

I kinda like that idea, yea, actually ALOT!!You didnt make a build post anywhere????.A150 shot and youll be in the 11's

ScreaminRedZ

iTrader: (3)

Very nice power!

+1 on the lack of differences between the Vette and Fbody motors (LS6 not withstanding).

Kingc8r

iTrader: (21)

Nice sleeper, I'm sure you suprise quite a few people

KC Henry

Ha ha ha, I am glad you like Christine. I am going to save up for some Mod's, but first I have to sell my 1957 Caddy.

Here are a couple more posts if you are interested.

https://ls1tech.com/forums/showthrea...=40753&page=32

https://ls1tech.com/forums/12-second-club/817239-12-s-stock-ls1-what-kinda-car.html

https://ls1tech.com/forums/midwestern-members/866697-couple-pics-christine-2008-world-wheels.htmlThank you guys for the compliments! I truly appreciate all the positive feedback on Christine. Some of the best moments are when I race expensive cars and beat them....the look on their face is priceless and just makes it all worth while.