well, we finished the initial tuning, on pump gas. I gotta say that the Turbonetics wastegate sucks, and flutters way too much, planning on a switch to a TIAL.
Anyways, boost spikes to 19-20, going back down to 16-17PSI. A/F is very safe (could lean it out more).
Results are (add 10 to 12% more for equivalent Dynojet numbers):
313WHP
335WTQ
400 won't be a problem to hit, I'm still running this on a 2.5" exhaust, and pump gas. Bumping the boost up to 23-25, and some good gas, and she's going to rock. Car easily breaks loose in third gear at just about any speed.
Mods are :
Mopar Cat-Back Exhaust
Mopar Stage-1 Computer
Walbro 255lph fuel pump
RC Engineering 750CC injectors
AGP Fuel Return Line kit
AGP Front Mount Intercooler
AGP 3” Cold Air intake
AGP Upper and Lower Hard Pipe Kit
AGP exhaust manifold
AGP T3/T04 50 Trim (stage 3 turbine, .63 A/R)
TurboXS DTEC Boost Controller & DTEC Fuel Controller
TurboXS Tuner Wideband logger
HKS SSQV Blow-Off Valve
Turbonetics 38mm Evolution Wastegate
AEM Wide Band O2 Gauge
AEM Digital Boost Gauge
AEM Digital Volt Meter
Thanks!
Gino
Hey there,
well, just got back from the dyno (Mustang Dyno). The good, is that the car is running perfect, no weird stumbles, no hesitation, fuel curve is perfect, etc.
At 20PSI, on pump fuel, I put down 340whp/390wtq , with full boost hitting at 3450rpm. This would be equivalent to about 384whp/440wtq on a Dynojet (13% correction averaged).
The bad : Well, the mustang dyno was acting all weird, and the HP/Torque wouldn't cross at 5250 (more like 3500rpm, WTF), or would cross twice on the map sometimes. This was probably cause by the fact that I would still spin my drag radials in 4th gear!! Mustang Dyno's apply load, and wheelspin drastically affects the curves (specially HP ratings apparently). I shredded half of my brand new DR's in 2 hours on the DYNO I would literally send tons of tire shrapnel all over the place in each runs. The drums aren't smooth, they are criss-crossed to get better traction, but it's killer on soft tires. So I had to stop it, instead of going on by increasing boost.
The good : When I opened-up my 3" electric cut-out, I would get full boost at 3200RPM, and gain an extra 3 PSI of boost. I would literally go from 5PSI to 23PSI in less then 300rpm, and again, spin on the dyno, which gave me lower numbers of course.
The bad : The car was pulling timing like crazy on the top end, because of the pump gas of course.
The bad : I need to find myself a Dynojet, cause I'm obviously in the 400s, but can't put it down correctly on that Dyno.
The Good : This is only at 20PSI on pump, if I actually used some good race gas, and cranked it to 24-25PSI, I still have lots I could gain there
Anyway, I'm very happy with the car right now, pulls like crazy, and it's still feels/drives like a stock car, minus the neck-bracking-snapping-push-back-in-your-seat-feeling when you floor it And you guys had been right, the downpipe and throttly body alone let me go from 313whp to 340whp, and 338wtq to 390wtq, at the same boost level.
Time to put down some times at the track that matches those numbers.
Just put my 50 trim on and got it running... stock wastegate seems to be about 10psi but in higher rpms 3800 400 its creeps up to about 13 psi.. that normal?
i gave it a quick tune witht he safc and got my numbers to about mid 11's which was luck haha...
i am still runnin stock injectors so i cant get a boost controller and start tuning it at all so here is the boost level its ganna sit at till about next week o well
its feels like it runs good but on 10 ish psi shit the turbo is only starting to come alive... so i hope it rips for me one i get some more boost to her and fuel..
also I love the external wastegate!!! haha
__________________
05 srt4
SC61 ..je pistons crower rods,dcr oil pump kit windage tray and crank scraper,dcr head studs,180 therm. ,tkmotorsports timing belt and head gasket,fpr and return,rc750s,crane 16s,crane valve springs,fidanza cam gears,max fabb exhaust, rpm tb,agp race fmic,4 inch intake,screamin demon coil and plug wires,agp ic pipe,hks bov,perrin fuel rail,agp mm's,ss brake lines,18's..
Just put my 50 trim on and got it running... stock wastegate seems to be about 10psi but in higher rpms 3800 400 its creeps up to about 13 psi.. that normal?
i gave it a quick tune witht he safc and got my numbers to about mid 11's which was luck haha...
i am still runnin stock injectors so i cant get a boost controller and start tuning it at all so here is the boost level its ganna sit at till about next week o well
its feels like it runs good but on 10 ish psi shit the turbo is only starting to come alive... so i hope it rips for me one i get some more boost to her and fuel..
also I love the external wastegate!!! haha
I thought the car was pretty fun back when I was on 13 psi. No tuning headaches to worry about and the car still ran 13.1 at the track with novice me driving.
yeah its fun but im greedy and always want more.. haha
where i said "stock wastegate seems to be about 10psi but in higher rpms 3800 4000 its creeps up to about 13 psi.. that normal?" or do u think i have a leak b4 the turbo somewhere like manifold ? i just replaced tje gasket and also used a little black gasket maker to help with the seal..
yeah its fun but im greedy and always want more.. haha
where i said "stock wastegate seems to be about 10psi but in higher rpms 3800 4000 its creeps up to about 13 psi.. that normal?" or do u think i have a leak b4 the turbo somewhere like manifold ? i just replaced tje gasket and also used a little black gasket maker to help with the seal..
My wastegate acts the same way with the stiffer spring. Boost start at 16 and rises slightly to 18 psi near redline.
I thought the car was pretty fun back when I was on 13 psi. No tuning headaches to worry about and the car still ran 13.1 at the track with novice me driving.
Yeah that was also back when your axles loved you too.
i had the same thing happen with mine when i was untuned on stage 1 injectors.... just watch your air/fuel to make sure you aren't to lean at redline. mine spike all the way to 15 psi one time scared the shit out of me. car was at 12.9 on pump when that happened, i immediately backed out of the throttle.
how close are your guys' dump tubes to the cross-member? mine cracked and I had AGP re-weld it, and it seems like it just wants to rest on the cross-member...that can't be good with the motor movement.
Im on 24-26 psi and it seems like it would be nice...........and then all my timing gets pulled from phantom knock and kills all the fun.
do you have a scan gauge?
i would take the gauge and monitor knock retard and knock voltage. See if the car is reading volts on the knock sensor when you have the phantom knock condition. if your knock volts stay in acceptable levels (watch it at idle and under light load) but you're pulling a crap ton of timing then its a tune problem.
o well
Linear Mode
