jz06man

what are some max safe power levels with a 346 LS6 Stage X TTI Turbo- New Head with 9.5cr, light cam, upgraded spring and kit and safe rich tune 10-10.5 A/F...
What could be max levels on an LS7 Clutch might hold for a while- no hard launches, no slipping or hard 1/4 runs, with light launches 2K max.

Thanks

mdhmi

iTrader: (1)

Are you talking about their C5 Stage X kit? If so I ran 600 rwhp on a stock bottom end LS1 without issue before upgrading to a forged LS6 lower end.

jz06man

Yes the C5 Stage X kit.... You made 600rwhp, I'm at 597. Did you replace the head or anything??

mdhmi

iTrader: (1)

That was with a LPE GT2-3 cam and worked over LS1 heads. Pump gas and no meth with a 6 speed. That was around 10 psi of boost on a very fat tune.

Keep in mind that with the larger CC heads my compression was around 9.7:1 as opposed to a stock Z06 of 10.5:1.

jz06man

This sound intresting- I have a LS6 Stage 2 head with larger CC Also and running 9.75CR.
I'm running base boost 7-7.5 and make this power with no Cats, full exhaut and a mild cam. We looking to increase a pound or two in order to make 650rwhp as a max. The car has a rich tune and max timing at 26 degress for now.
My cam is very similar except for the LSA- 210/218 .551/.551 LSA 112.... Lot's of low and mid range TQ.
Any thoughts

GEN3Typhoon

iTrader: (5)

26 degrees of timing is wayyy to much.

I would cut that back significantly to be safe.

I have done several of these setups and am a dealer for TTi if you have any questions. You are also welcome to sign up over on their forum if you have questions about the kit, etc.

I am BLOWNZO6 over there and on the Corvette Forum.

EDIT.. also why run such a rich AFR? Set the AFR up properly and cut the timing back. I would start with 15-17 degrees.

I would also recommend an alky kit, 650 is probably stretching it on a stock bottom end though.

LV Vette

Safe is dependent on how much boost and how long you want it to last on a stock block.


Clayton from Las Vegas

jz06man

My mistake with 26 degrees of timing- that was the old high cr tune. it more like 17 degrees but don't have the number at hand- Speed Inc has done all the work. The seem to tune conservatively...
I'm looking for the block to last 2 year or about 8-10K miles before a full forged engine...

I'm running 93 octane with one can of Torco per tank-every time!

mdhmi

iTrader: (1)

That'll definitely help, but 650 rwhp via TT's is going to stress the stocker motor. The motor will hold, but the question is for how long. If your goal is 650 rwhp or more I'd recommend starting with a forged lower end. It'll save you a great deal of labor, frustration, and downtime.

jz06man

I'm basicly at 600rwhp and looking for a MAX of 650rwhp- tuner saids it's doable for a while.... Until a forged motor comes.

Chris Stewart

iTrader: (1)

Yeah it's doable, but probably not safe. I'm at 660+rwhp with a stock longblock LS6, and it's holding up OK. I run 92 octane and meth to prevent detonation.

jz06man

Ok, got back my car and tuned for use with the Exile Turbo Systems MSBC-1 ET01 Multi Stage Electronic Boost Controller- Dynoed 628rwhp & 580rwtq...