Ryans99ls1

iTrader: (16)

Swapped my turbo out from a TC78 to a Precision 7675 GTS-H. The bigger turbine let the car hold boost better and it made 690 right off the street.. no changes whatsoever. threw another degree in it through the entire range and fattened it up to 11.0AFR throughout. Tuner said my 80lbs were maxed on this pull but it was pretty cool to see.

Timing at peak torque is 14deg, at peak hp its 19-20deg.
Boost was at 16psi and fell to 15psi by the end of the pull.
Left the dyno at 12lbs so its back down to 680-690. I still may bring it down some more cus the rods have to extremely angry with me..

Brian at Dynotune Motorsports in Columbus Oh deserves the tuning credit!! Guy is awesome.





Side note, when it made 630 last year, the car had stock heads(853s), stock head gaskets and stock head bolts. Since then ive put in stock untouched 317s, ls9 gaskets, and ARP head studs. So realistically, i picked up 60rwhp by switching to the PT7675 and putting on the 317s, not bad.

Ill get a video this weekend when i go back for the dyno day, we had to sit on the rear to keep if from spinning so i couldnt get one

HCI2000SS

iTrader: (2)

Wow, so no plans of beefing up the internals lol?

Ryans99ls1

iTrader: (16)

I will eventually. I did NOT expect this much power, i mean it made 690 right off the street.. on last years tune.. the challenge was to get it to STOP making power and we couldnt haha. We were really just having fun at this point and decided to turn it up.

Carter01

iTrader: (11)

Congrats man, the SBE is a whole lot stronger than people give it credit.

Ryans99ls1

iTrader: (16)

Thank you sir. But yeah i agree, im a firm believer that E85 and low (6k) rpms will keep it alive for awhile.

JasonShort

iTrader: (242)

Glad to see my old turbo being put to good use Ryan! Great job!

Ryans99ls1

iTrader: (16)

Thank you for giving me a great deal on the turbo! Its perfect for the car.

T/ALT1

iTrader: (3)

Congrats That's some awesome power for stock parts! I keep telling people about the power these LS engines can handle and all the old Hot Rodders say I'm lying and don't believe it. So I'm building: 08 LH6 aluminum 5.3, ported stock castings,,S475, custom cam and ARP hardwarewith 18-20psi to show these locals how much power I can make with GM parts!

Blackpanther99

iTrader: (8)

Thats awesome power. Very nice.

RaggedRides

iTrader: (8)

Wow..

I know what I'm doing once I'm done with school. I've wanted to do something similar for years, but with an LQ4. Threads like this make me want to throw some good rods, pistons and bolts at my LS1 and stick with it.

CorySS

iTrader: (3)

Are you running water meth injection as well?

Ryans99ls1

iTrader: (16)

Many people are stuck in their ways and seeing is believing, your car should run hard!

Thank you!

Id love to throw some rods/pistons in it and turn it up some more and not have to worry about it.

No sir, straight E85.

Car backed up the pulls today at our dyno day. Made 753 at nearly the same (slightly less) boost. Gave a lot of rides at ~690whp over the past couple days as well, many, many 3-4gear highway pulls and shes still going strong!

Macs98Z

iTrader: (16)

Hey man, throw that vid up That thing pulled strong!

Ryans99ls1

iTrader: (16)

video. 720 on this pull, pull after this was 760 but i didnt get a video, im sure one will pop up soon.


These were also todays dyno day results. (The air-fuel line broke on the end of the second pull)

CorySS

iTrader: (3)

NICE! What are you running for a fuel pump?

Ryans99ls1

iTrader: (16)

twin walbro's

CorySS

iTrader: (3)

255's?

Ryans99ls1

iTrader: (16)

340's