Livernois GXP, Exhaust, CAI, Tune Results 410 RWHP!!

[Livernois Motorsports]

We recently installed a Corsa catback and "X" style crossover pipe on our 2009 G8 GXP. We put the car on the dyno to get results from just the exhaust, the exhaust and a tune, then the exhaust, Rotofab CAI, and tune.

For the small amount of mods, we are happy with the results. Now we just need the weather to stay nice so the track can open.

Stock Baseline 371 RWHP / 382 RWTQ - After Corsa 383 RWHP / 384 RWTQ

http://i540.photobucket.com/albums/gg324/LivernoisMotorsports/gxpsktexh-1.jpg

Corsa Exhaust & Livernois Tune 396 RWHP / 401 RWTQ

http://i540.photobucket.com/albums/gg324/LivernoisMotorsports/g8exhtun-1.jpg

Corsa Exhaust, Rotofab CAI, & Livernois Tune 410 RWHP / 410 RWTQ

http://i540.photobucket.com/albums/gg324/LivernoisMotorsports/g8caitun.jpg

Here is a video of the car at start-up and idle, cruising at 30 mph, 70 mph, the 1st-4th gear WOT. (excuse my slow shifts )

uLBDip4vLLs&fmt=18

and a video of it on the dyno with the Corsa Exhaust

-4k2LWjR-U4&fmt=18

Regards,

Rick LeBlanc
Livernois Motorsports

[G8GT594]

Fucking nice!

I'm not going to lie... im jealous, i knew i should have waited for a GXP LOL.

[G8GT721]

Fucking nice!

I'm not going to lie... im jealous, i knew i should have waited for a GXP LOL.

hahah me too and i thought the same thing after i saw stryker blue in person

[BigRob]

bananas! :brock: i want one now!

[99-LS1-SS]

This makes me happy. :D

[99-LS1-SS]

Is the tune aggressive or conservative?

[MANOFSTEEL69]

It was cool to see the gains. I showed up as the tuned run was being made, and witnessed the 3 roto-fab intake pulls. Consistant pulls each time @ 410HP and 410TQ. Unreal! The corsa exhaust sounds awesome. Very stealthy at idle, and sounds awesome at WOT.

[R.Penguin]

Very nice! So about 40hp +/- with the "big 3" mods. Excellent! :wacko:

[MANOFSTEEL69]

Dans GXP on the dyno....
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02755.jpg
Engine bay pre-Roto-Fab
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02756.jpg
Andy playing with Dans tube....:nah:
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02757.jpg
Chris trying to figure out how to keep Dans car from making over 400HP
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02758.jpg
Hmmm....Whose could this be I wonder.....
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02759.jpg
Notice how they protect your paint boys and girls....
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02760.jpg
Instructions? Really?
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02761.jpg
Roto-Fab installed!
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02762.jpg

[fiveoh]

How much hp do you think a GT would benefit from changing the catback? I wanted to leave mine stock because I like it quit but not if it's going to rob 12rwhp.

[bwooten492]

It sounds so sick with Corsa!!!

[GTPprix]

There is more left in that car, the tune was quick and dirty and Dan was rushing to get his car off the dyno so project shit box could get on. I'd keep your eyes peeled for more numbers knowing these guys LOL

[p71]

How much hp do you think a GT would benefit from changing the catback? I wanted to leave mine stock because I like it quit but not if it's going to rob 12rwhp.

Probably going to be a bigger pickup on the GT% wise... GXP has a better stock exhaust.

[rclinton]

Was running the video clip and the wife stopped walking by and sat down. She liked the exhaust sound. She even said, hey does that have a manual transmission? Anyone have a clip of the Corsa catback on a GT. It may have to be my next mod after the daughters wedding in May.

[edmanet]

Dans GXP on the dyno....
Notice how they protect your paint boys and girls....
http://i354.photobucket.com/albums/r424/MANOFSTEEL69/DSC02760.jpg


I wonder who's car that is. Glad you left the engine bay dark in the photo. We wouldn't want to give away the 454 stroker engine Andy slipped in there while no one was looking. :rofl:

He'll do anything for crab chips :watch: and birch beer :beer3:

[jimmytt6]

Damn sounds nice! great numbers, second thinking about not getting the GXP

[jbradsh1]

The stock corvette cam with the 6 spd. manual looks like a very healthy combination; and that's without LTs. What do you suppose it would put out with the stage 1 cam?

[johnh]

Most impressive.

Add me to the list of "I shoulda waited", given that the GXP is making 70whp more than comparably equipped GTs.

[GeorgeInNePa]

Most impressive.

Add me to the list of "I shoulda waited", given that the GXP is making 70whp more than comparably equipped GTs.

Change your cam, that and 12ci are the major differences between that car and yours.

Well, that and the M6.

lol


Nice results.

[GTPprix]

Most impressive.

Add me to the list of "I shoulda waited", given that the GXP is making 70whp more than comparably equipped GTs.

Heh conversely I think this is the ONLY time I've actually been able to wait it out... almost gave in a few times... DOH!

[johnh]

Change your cam

Yeah they are calling to me...."more duration, more lift"......:)

Seriously though, cammed "Stage 1" GTs are making 420-450, w/ headers.

What do you guys think a cammed GXP will make? Is it as dramatic as the GT (likely not given the GTs baby cam), but seems like 475whp with a cam/headers should be easy.

[GRRRR8]

I would really like to see a G8 with a stock GXP cam and the lighter intake valves for a comparison. Our factory cam kills our potential performance. On another note, the average G8 picks up close to 40RWHP with a Roto/tune showing just how handicapped they are from the factory. It the same heads, cam and compression and exhaust were on both I would expect about a 12-15 HP difference. Dont forget, the M6 is probably putting 15 more to the wheels because its a manual. An automatic needs to be tested ASAP!

[Darkside]

An automatic needs to be tested ASAP!

Chris tested a stock one a while back, and the numbers were quite a bit lower with the auto.

[GRRRR8]

Chris tested a stock one a while back, and the numbers were quite a bit lower with the auto.

I couldnt find the #s. I think the GXP is awesome and would not expect any less from it or Livernois. I just hate to see people say they should have waited when the performance #s are not based on auto vs. auto. I got to see GXGP4NOWs yesterday and they are nice. I just dont see me going this far with another G8. Now a Camaro on the other hand.........:devil:

[Andy@Livernois]

Is the tune aggressive or conservative?

I just noticed this question. Dan is the most conservative tuner I have ever seen. So I would definitely put it WAY on the conservative list...

[GTPprix]

I just noticed this question. Dan is the most conservative tuner I have ever seen. So I would definitely put it WAY on the conservative list...

To reiterate my earlier post and to add to this, this was a quick and dirty tune, nothing Dan would ever put on a customers car I'm sure. Literally I told him what I had done on another GXP just screwing around on the street, he mirrored some of that and did his own thing as well and viola there it was. There is more left in it I'm sure we'll see another video soon, basically you guys can blame me he was rushing to get this done so we could get project shit box on the dyno LOL

[GTPprix]

I couldnt find the #s. I think the GXP is awesome and would not expect any less from it or Livernois. I just hate to see people say they should have waited when the performance #s are not based on auto vs. auto. I got to see GXGP4NOWs yesterday and they are nice. I just dont see me going this far with another G8. Now a Camaro on the other hand.........:devil:

Good point Charlie! I'll try and steal an Auto so maybe we can get an idea of whats going on.. I totally forgot about the different trans;doh!

[Darkside]

Found an old post from Chris from the other board....

Wow I dynoed one awhile back and it was only making 355WHP on a dynojet

[GTPprix]

Found an old post from Chris from the other board....

Wow I dynoed one awhile back and it was only making 355WHP on a dynojet

Yeah but not on the same dyno nor was it broken in IIRC one had about 300 miles on it (that was months ago) the other one I think only had like 100 or so, so still not a "fair" comparison :(

[johnh]

auto vs. auto

True enough..a 5% at 400 hp is 20. Although I don't think the M6 vs. A6 is a 5% difference is it?

Found this:
http://www.camaroz28.com/forums/archive/index.php/t-530563.html

It might be 5%....:(

[Mike P]

Found an old post from Chris from the other board....

Wow I dynoed one awhile back and it was only making 355WHP on a dynojet


Man, I'd still really like to know how much my car would have dyno'ed with everything, but the Torque Converter.

I can't imagine I'm making that much less than a GXP, with exhaust, cai, & tune. (I know I've got LT vs. just cat-backs on this particular GXP).

Darkside: I'm really anxious to find out your dyno pulls before & after you have the Torque Converter on.



...

[johnh]

Does the GT 4th gear at 1.15 vs GXP 4th M6 1.00 make any difference?

[MANOFSTEEL69]

The convertor will definately cost you some HP....And won't really do you much good once you get the cam done. I was told by Mike @ New Era, and Dan @ Livernois that the convertor is pointless for me now.

[Andy@Livernois]

The convertor will definately cost you some HP....And won't really do you much good once you get the cam done. I was told by Mike @ New Era, and Dan @ Livernois that the convertor is pointless for me now.

well, that's cause supposedly, eventually, maybe you are getting a maggie :nah: ;)

[Mike P]

The convertor will definately cost you some HP....And won't really do you much good once you get the cam done. I was told by Mike @ New Era, and Dan @ Livernois that the convertor is pointless for me now.


That's cool, more money for you to spend on different stuff! :)



...

[MANOFSTEEL69]

well, that's cause supposedly, eventually, maybe you are getting a maggie :nah: ;)

Oh it's coming.....Bike went up for sale this week to help offset what I lost in the market that was going to pay for it. :(

[Dan@Livernois]

I couldnt find the #s. I think the GXP is awesome and would not expect any less from it or Livernois. I just hate to see people say they should have waited when the performance #s are not based on auto vs. auto. I got to see GXGP4NOWs yesterday and they are nice. I just dont see me going this far with another G8. Now a Camaro on the other hand.........:devil:

I agree, I wouldn't regret my purchase at all if I had a GT. I do have a GXP but thats cause I wanted the M6 period. If I was buying an auto I would most likely go with the GT and put my money in mods.:thumbsup:

The engines except bore and camshaft are very similar.....

Thanks

Dan

[GRRRR8]

Its a beautiful car you have Dan. If I get a Camaro it will be a M6 also.

[Dan@Livernois]

Its a beautiful car you have Dan. If I get a Camaro it will be a M6 also.

Thanks!

The new Camaro is sweeeeeeet!!! Every time I see one I like them more and more...

[GeorgeInNePa]

The convertor will definately cost you some HP....And won't really do you much good once you get the cam done. I was told by Mike @ New Era, and Dan @ Livernois that the convertor is pointless for me now.

Absolutely false.

[Darkside]

I think the main word in that comment is 'you'. If manofsteel has H/c and a Maggie he is going to have enough traction problems to solve. Mike on the other hand, would benefit greatly from a stall.