Finally Running After Many issues ..... 613 whp 525 wtq(stockish lq9 w/twins)

[jeevesrules]

custom twin turbos in my case meant twin turbo problems.....

The setup
Lq9 stock block other then the arp bolts and studs
comp cam 236 .601 114 lsa w/ springs to match
317 heads stock with hand cast smoothing
Victor Jr. No porting.... something to do later
60lb Motrons injectors
Twin garret t04e t4 .61 cold .81 exhaust
no meth yet not until the nitrous is installed .... and only 93 octane so far....

but here is my first hurdle a few weeks ago

no hood for problem identification i guess


not the only issue but .... it wasnt fun...



the dyno graph




Need help on getting more tq!!! any pointers? truck is around 4400lbs would like to see it scoot off the line decent without the nitrous.

[ff_jeff]

Nice truck man... Awsome numbers, I bet a 50shot would help more than enough. maybe some meth.

[ducky]

wow that is a pretty intense setup. keep us posted on any updates as you move along

[jeevesrules]

are the hp number typical?? it suprised me abit as the tuner started around 540hp which i was perfectly happy with and ended up there all around 17 degrees timing

1 coil had a short and it would hit above 460 hp that wasnt fun figuring that out.

did around 20 dyno runs .... im ready for the track!

[ff_jeff]

what psi are you running? 12#???
Thats a good number IMO. I hope to put that much down with my setup. But I have a t70 .96ar on a lq4.

[jeevesrules]

10.00 psi average ..... never saw more then 10.2 on the dyno and early in the tuning it was only around 9.85

edit*
funny thing is its only a 7. psi spring in the tiny tial 38mm vband MVS wastegates

[George C]

that dyno graph looks almost identical to mine on the sweep


ditch that maf when you ge ta chance. with large cams tq will be down compared to hp... that combo seems to keep pulling. probably could pull it 6500-6600 without it falling off

[ff_jeff]

10.00 psi average ..... never saw more then 10.2 on the dyno and early in the tuning it was only around 9.85

edit*
funny thing is its only a 7. psi spring in the tiny tial 38mm vband MVS wastegates

that is really good IMO for 10psi and twins... I bet 12-14 psi would put a bigger grin on your face.

[pl4yboy]

My suggestion for more TQ? More boost.

[jcormier89]

My suggestion for more TQ? More boost.

lol imo more boost is always the solution