[ULTRAZLS1]

I want max performance on stock converter.

I want to daily drive my car and run tens at will with no sacrifice on drive ability.

At this point Texas speed sv1 cam and their ported heads should do the trick. But I'm gonna stay stock internal next season

[cooden]

Originally Posted by jayb998

the gm kit was 2400 the headers/exhaust was 2100 and install was 2250

$6,750 for maybe 535hp? Not for nothing, but that is an absolutely insane amount of money to spend to get only 535hp. Hell, spend $2500 more and you can get a Magnuson or Whipple installed for roughly 630hp - 650hp, run on pump gas and have all stock internals. I'm hoping you get closer to 575hp with the work you have done.

[oldman]

Originally Posted by cooden

$6,750 for maybe 535hp? Not for nothing, but that is an absolutely insane amount of money to spend to get only 535hp. Hell, spend $2500 more and you can get a Magnuson or Whipple installed for roughly 630hp - 650hp, run on pump gas and have all stock internals. I'm hoping you get closer to 575hp with the work you have done.

then you have to factor in drive shaft, LSD, half shafts and for the M6 a clutch cause NONE of the factory stuff is designed for the torque of a supercharger, even the two SS transmissions are suspect IMO. While NA's torque is within acceptable bounds outside of a M6 clutch drop with DRs....

Not to mention weak relatively speaking ring lands, while we all know a NA LS engine baring a black swan event is good for 150K to 250K ....

[Blk16SS]

Originally Posted by oldman

then you have to factor in drive shaft, LSD, half shafts and for the M6 a clutch cause NONE of the factory stuff is designed for the torque of a supercharger, even the two SS transmissions are suspect IMO. While NA's torque is within acceptable bounds outside of a M6 clutch drop with DRs....

Not to mention weak relatively speaking ring lands, while we all know a NA LS engine baring a black swan event is good for 150K to 250K ....

All of your points are 100% accurate IMO.. I've been on the fence in regards to modifying this car at all . They're closing my favorite nearby 1/8 mile track so that has turned me off abit as far as racing is concerned. Why spend countless 1000's of dollars on a car when there's hardly anywhere to go feel some sort of satisfaction? I might throw on my mid pipe and maybe some wheels and call it a day...

[oldman]

I'm impressed, if not floored by bolt-ons. The quest continues but it looks like there are impressive gains from E85, LT, and tune and reasonable gains from MSD, ported stock, larger or ported TB. And OK gains but at expense for CAI and full exhaust. All in all for bolt-ons the car is traction limited and to go "faster" needs 80 to 220 wear 305 rear tires, just not as sexy as the supercharger... had one on my Challenger.

[Speedy1975]

I've been following Pray and EFI's thread with IM/TB/RF, E85 and, and tuning, and with picking up about 70RWHP/70RWTQ, that's pretty impressive for the money. I think I figured up about $2200 or so and that's around $31 per horse power. I'm not sure I'd go for the CAI due to cost, so I'd leave that off personally, and also to retain that stock look for those special occasions LOL.

If you haven't seen their thread, it's worth a read for sure.

I've always said supercharge and be done, but you can't argue with their results. You still get another 100 or so RWHP and RWTQ from a Magnuson or Whipple though. I'd suspect the drive shaft would be OK on drag radials, and probably the axles too with an A8, M6 not so much. I watched a Magnuson charged Camaro SS run low 10.90s IIRC at LSFest in 90 degree heat.

Magnuson $7695 retail +$1000 for install assuming you don't do it yourself like I would = roughly $48/hp assuming about 180RWHP gain. Install it yourself and you're at $43/hp, so still a bit off from the bolt ons.

If you could get a cam for reasonable cost and get the car over 500RWHP/500RWTQ NA, you'd really have something.

[oldman]

Originally Posted by Speedy1975

If you could get a cam for reasonable cost and get the car over 500RWHP/500RWTQ NA, you'd really have something.

So far the scare factor in the cam is the pan needs to be dropped. I had a look and if the engine can be jacket up and the pan made to clear the K member this would add about 1 hour to a LS job (jack engine, remove pan, clean pan, reinstall pan). If the K memeber should come off, then is is 2.5 hours over a normal LS engine. Not crazy but I think as more guys do it the fear factor will go away. I just did LT on my car and it was candy.....

[Speedy1975]

Good info. Will these cars pass emissions (OBDII test) with LTs? I skipped LTs on my Challenger because it won't pass OBDII or visual. The stock manifolds look pretty good on the Camaro as well. 20RWHP with LTs ?

I helped a buddy do a cam in a 2008 Z06 and it was scary business messing with the oil pump with the pan on. Only one I've seen on a Z06 and it's been a while, but I remember being certain that pump would tear the oil pan gasket. We got it done without that happening thank goodness or the engine woulda had to come out I think to repair it.

[oldman]

Originally Posted by Speedy1975

Good info. Will these cars pass emissions (OBDII test) with LTs?

With green cats probably pass OBDII and sniffer; however, it will fail visual.

Originally Posted by Speedy1975

The stock manifolds look pretty good on the Camaro as well. 20RWHP with LTs ?

The 6.1 has a very nice factory header, IMO and was a nice upgrade for 5.7s.

I would estimate a realistic 12 hp / 12 ft lbs of torque going from stock to LT and off road pipes and IMO the largest gain was probably removing the cats. That said when I get all the bugs worked out, I'll probably fab the stock rear cats back into the system and run 02 bungs in back of that.

As an aside, there is no reason why somebody can't make LT with a simple cut and weld to the 2nd cats of the stock system as 2 and 3/4".

Originally Posted by Speedy1975

I helped a buddy do a cam in a 2008 Z06 and it was scary business messing with the oil pump with the pan on. Only one I've seen on a Z06 and it's been a while, but I remember being certain that pump would tear the oil pan gasket. We got it done without that happening thank goodness or the engine woulda had to come out I think to repair it.

Yep my worry at taking out the pan with K member in place. We won't know till more people try.

[Speedy1975]

Yep, I did the SRT manifold upgrade on my R/T when we built the motor. Engine guy told me going to LTs over the SRT manifold would only give me another 10-12HP and wasn't worth the cost.

I figured the same on this Camaro unless you just need every available HP. Glad to hear the install is a breeze though, it's a major PITA on the Challenger as I'm sure you know. Most folks just remove the heads and install them that way.