Did a little tuning today.

[blueapplesoda]

Went to the dyno to tune some bad spots out, ended finding out I had a few more issues than I would have liked to encounter on the dyno.

However after sorting through all the problems, I was able to do a very slight amount of tuning, out of the two hours I rented.

End result isn't bad.

320wtq/310whp @14psi

stuff related to the setup:

m20b25
84.5mm ceramic coated Wiseco 8.5:1 pistons
lightened s50b30 rods (arp bolts)
12.9 main bolts
crank scraper
O-ring'd block
Stock goetze headgasket
ARP Head studs
R&M Adj. cam gear
mediocre front mount IC
custom FP big wheel gt30r
38mm Tial wastegate set @ 14psi
Blitz Supersound DD
42lb Lucas injectors @ 3.0bar
MS2 EMS + AEM UEGO Wideband
msd blaster 3 coil
ngk bpr7eix (.025")
3" stainless mandrel straight pipe
M1 10w40 synth oil
NO OIL COOLER (looped cause it broke)

-Derek
DedericMS

[Adrian_Visser]

Holy shit, not bad for an m20.

[325ix]

those are good numbers. Any plans to upgrade for more power?

[blueapplesoda]

its ready...just need a boost controller and a MAP sensor upgrade for more than 20psi

maybe some injectors....but that can be *somewhat* fixed with pressure

[Wh33lhop]

AFRs? What happened from 5-6 grand? Is the IM really that restrictive up there? There's no way you're getting boost taper with a GT30R at 300whp.

[blueapplesoda]

that was bothering me too. I was able to play with the timing and I did bring the power up up, but then i started losing torque and then i thought...ping comes next if I keep going.

AFR's were around stoich low load, 13.8 flat on throttle and 10.8-11.5 on boost.

[e30pwr]

thats on a 30r setup on an m20????? damn, you've got to have more room!

[nando]

why so rich? fuel doesn't really burn very low below 11:1.

good results though. I think EGT would tell you a lot about why it's losing so much torque in the upper RPMs

[Alpina]

This is an impressive force,,

one question .. on 500 rpm range you are getting 100 lbft gain ,,, that is a lot on such short rev range,,,

the hp numbers are not as agressive ,, but an E30 with with 300 hp on crank is a quick vehicle ,, well you have 310 to the wheels ,, so i guess your icecream is a really fast one

do you have the engine performance number for hp and tourque on crank ,, i would like to see that

[blueapplesoda]

why so rich? fuel doesn't really burn very low below 11:1.

good results though. I think EGT would tell you a lot about why it's losing so much torque in the upper RPMs

Thanks for the tip i'll look into that. Ill note the EGTs and let you know.

[blueapplesoda]

do you have the engine performance number for hp and tourque on crank ,, i would like to see that

Correct if I am wrong, I am assuming 12.5% drivetrain loss you could calculate the crank figures to 360tq/349hp

[Alpina]

Correct if I am wrong, I am assuming 12.5% drivetrain loss you could calculate the crank figures to 360tq/349hp

the lbs/ft is calculetad to 490 nm ((more common in EU)) and 350 ponies is also a lot

einarss,, one owner here in Iceland is blowing 1.5 bar and estimated power is 400 ps to the crank and around 500 nm ,,,,,,,, really powerful M20B25,,

12.6 @ 116 with totally worn tires

[theox69]

Wow, very nice!
Got any videos?

[325ix]

Wow, very nice!
Got any videos?

I'd like to see this car in action as well, or at least a set-up.

[Rodoni]

his setup can be purchased in the group buy section...