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been street tuning last year with HPtuners and have gotten as far as I can without either getting in an accident or recreating my favorite scenes from GTA lol
Car runs smooth and other than the trans tune at WOT, runs pretty well. I see boost at 2400rpm and can brake tq 10psi on the 2 step. max boost is 14psi, but I have the eBOOST2 set to 12psi.
with the current setup, im hopping to shoot for 600wrhp 😁 thats of course gonna be up to fuel and timing. I know the fuel setup can support that, and the turbo is capable of 700 although backpressure for gt45s get a bit high past 10psi. The point of this dynon session is to finalize the tune and touch up anything I can see while on the street or just can't recreate without being on a racetrack. For reference, the stock ls1 in NA dynoed 301rwhp on a portable dyno back in 2012.
ENGINE:
been a long time coming 😁
current datalog tune under boost. timing is now my main focus.
some bluecat data used to get the trans to shift a little better still need a litle more work though.
eBOOST2 working lol set at 12psi and 14psi
heres what the fuel map looked like when i first started back in AUG when i started learning hiw to tune... mind you this was something i paid for at a shop back in 2013... needless to say i had done a lot of work to do on my own lol
and now heres the VE map ive been playing with. VE table has come a long way, had some pig rich areas in the map that were rediculous at one point from the previous tune shop that was playing it way too safe. I had to pull over 10% of fuel in areas above 3000rpm and in boost. at times i was seen 9.0afr out of boost, not even in PE lol was rediculous.
Stock 98 LS1 (ls6 intake)
80mm throttlebody
TURBO:
GT45 Turbo
50mm wastegate 10lbs spring
BOV
CX Racing hotside
Cx racing coldside
3" intercooler
FUEL SYSTEM:
tuned for 91/93 pump gas
Dual 340 racetronic kit (Second pump activated on 4psi hobbswitch)
60lbs deka injectors
full return fuel system
aeromotive BR-FPR set to 58 psi
Methanol snow injector set for 6psi~ (boostjuice)
TRANSMISSION/REAREND
Bluecat assisted tune
4L65E built (c4 servo, shiftkit, raybestos clutches, beast sunshell)
REVMAX stage 5 3800 stall
2.73 stock rearend
ELECTROINCS:
Stock pcm tuned with HPtuners
Innovate Wideband serial input
Eboost2 12 and 14 psi
Innovate Fuel pressure sensor
2step set to 3000 rpm
Truck alternator
Br7ef spark plugs
Id be alright with 535hp with the LS1 and gt45 but i might have to push the boost up on it. I guess we will see lol
Next year i plan on swapping a cam and heads along with using the 7875 i got on the side.
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