finally got out and dyno'd and ran 1/4 mile

[ANVIL]

actually this was my 2nd time taking her out to the track. a few weeks ago i ran:

14.1@101 with 2.1 60ft

this was on PFC basemap which i dyno'd and found out it was roughly 180whp/150tq

got it dyno tuned with a 12 psi map which was roughly 260whp/240tq and a 14psi for 285/260

i ran it with the 12psi map and got a best 13.24@106 with 2.0 60ft

car is 89 s13 with rb25det with no major engine mods.

FMICBlitz EBCPFC /w datalogit3" downpipe/exhaustaluminum radstock turbocompetition stage 3 clutch

and nothing else really special. no lsd, tires i was using were bfg dr 205/50/15 (i know the size sucks but i got them for free). ill update the thread as soon as i get the dyno sheets emailed and ill post up the time slips too. i was hoping to break into the 12s this season but theres only about a month left and only about 3 more track days. also im not planning to run on 14 psi... im scared to blow the turbo. so what do u guys think? overall im pretty satisfied, it has got me pretty excited just to think of the potential this has once i get more mods done (turbo upgrade, injectors, lsd ect)

[DriftingisLame]

I think you did a pretty good job.

With an LSD and a little more practice I'm confident you could see a 12.9.

Good work!

[ANVIL]

thanks. im still debating on my next step especially since its so late into the season. im definately going to be painting the car this winter so that will take up a lot of my funds but i was thinking about getting an OBX LSD.

i know people say they suck, but i havent heard that directly from someone who actually had one. funds are pretty limited, im not crazy ballin like some of u rb guys on here. ive just been trying to read up on them and trying to find if someone could give me a write up on how to inspect and make sure the unit is good to go. nobody responding in the thread in the 240 section

[MastaYu]

numbers look good

[silviasgp06]

congrats on the times, but what ever happened to PFC dyno tuned rb25s making closer to 300hp to the wheels? there are a few in my area that got higher numbers with similar set ups. I know dyno jets read high but even the lower reading dynos were about 290. So maybe there's more you can safely pull out of your current set up. Cant wait to see the dyno sheets and afrs though.

[ANVIL]

i really dont know, but one factor, is that is on Alaska pump gas, which the best we get up here is 90 octane...

[rb25drag]

WOW that would be hard to tune I would think on that low of Octain, Numbers are not bad, Get you some good tires, and LSD or a full posi unit and you can see some 1.7's 60' and get you pretty close to a 12, I personally run 15lbs on the Stock turbo, I have not had any issues. I would think 14 would be safe.

What was your 1/8th mile trap?

[ANVIL]

1/8 mile was 8.5@84

hmm then maybe ill try 14lbs a few times...

[silviasgp06]

ah low octane, makes sense now. Thats a bummer, I was thinking of getting stationed in Elmendorf when I commission in the Air force. Guess if i do go ill have to deal with. Good luck with your car.

oh yeah i was going to ask, do you have an aftermarket fuel pump and regulator?

[ANVIL]

ah low octane, makes sense now. Thats a bummer, I was thinking of getting stationed in Elmendorf when I commission in the Air force. Guess if i do go ill have to deal with. Good luck with your car.

oh yeah i was going to ask, do you have an aftermarket fuel pump and regulator?

be sure to bring your 240 with you if u do! there are only a handful of 240s here. mine is 1 of 3 rb swapped 240s (1rb26 in s14 and another rb25 in s13) in the state, 4 if u include a 240z. and i know of 1 sr swapped 240. and thats pretty much it for 240's up here, they are hard to come by.

running a walbro 255, with nismo fpr

race gas is available here, but i like to run how i drive it EVERY day. full interior, system pump gas ect. theres a lot of guys out here quicker than me, but not in their street trim... so im pretty proud of that

[ANVIL]

here are a few of the dynos that i did

this is the exact one i ran the 13.2 on (12psi) 90 octane

and this is that same map, with just the ebc bumped to 14 psi

he tuned for the tq curve and said if i wanted to do some more i can go back if i make an apt. should i be dissapointed at the power?

oh and the AFR is between 11.3-11.8 the whole way through

[TSL]

The low boost looks ok, the dip at 4000rpm could be improved, but that high boost power curve is terrible.It has lost power and torque everywhere below 5000rpm compared to the low boost tune. Then when it gets over 5000 the power and torque jump up and down severely. Something is definitely not right there.

Your tuner was happy to let the car leave like that?

[ANVIL]

well it was already passed 11pm on a thursday night and he said if i wanted i can come back in just to make an apt. and besides, it was a HUGE difference, should have seen the baseline. what do u think causes that up and down jump on the 14psi dyno?

[TSL]

Yeah sure, the 12psi tune is fine like i said. It probably is a lot better than the base tune.But then what the tuner has done then is turn the boost up to 14psi without adjusting the tune right. It's just not a very responsible way to treat a car, particularly when the dyno result shows up such an obvious problem.

Like i said, the 14psi setting makes LESS power everywhere up to 5000rpm. Look at the difference in torque curves. Then when it does make more power up the top there is something going wrong.

Reasons for that could be tune related. That is fuel mixtures or timing.Or it could be that the electronic boost controller is not setup correctly.If i had to guess by looking at the power curve i would say the boost may be the problem, but the boost pressure isn't logged on the printout so it is hard to say with certainty.

[Kansei240sx]

That is pretty badass considering that you're running 90 octane. Do they have e-85 up there? You might be able to mix that with 90 octane as an octane booster to help lower EGT's and knock levels quite a bit. Injectors might not flow enough for it though. but a little might help.

[ANVIL]

well actually, we tuned the car w/o the ebc hooked up just running from the wg. and hooked up the ebc and that 14psi was the 1st run with it hooked up. we turned it down to 12 and tuned from there. it wasnt tuned for 14psi. i just remembered from looking at the dynorun numbers

[ANVIL]

That is pretty badass considering that you're running 90 octane. Do they have e-85 up there? You might be able to mix that with 90 octane as an octane booster to help lower EGT's and knock levels quite a bit. Injectors might not flow enough for it though. but a little might help.

i havent heard of anyone with e-85. there are a few places here that sell 114. a lot of people here mix that in to raise octane levels