R34 Performance Issues With Pfc

[Motorman]

Hi,

Ive got a manual 34 with turbo back 3" exhaust, apexi pod, hks bov, avcr (0.7 bar) and power fc. The mods were fitted in this order first exhaust > pod > avcr > pfc.

After I had the Power FC tuned I was slightly dissapointed with the 'increase' in power (it was tuned on the road, not a dyno by chapman & chapman). Since then I haven't been too worried about it as the car is running perfectly, and the tuner had ironed out a 'miss' I had on idle and some backfiring between gears caused by the atmo bov. It was only today that I realised my car is hardly any quicker than a standard manual sedan (judging purely by 'feel').

Just now i swapped back to my standard computer and it doesn't really feel hardly any slower..... I am going to run it on a dyno -

My question is how much power (at least) should I expect?

Dan666 was also in my car and agreed it should be a lot quicker......

Any ideas??

Cheers, Paul

[Bass Junky]

200 rwkw

Just like me and Adz

[Motorman]

Hmmm - cheers bass i'll see how I go.

By the way I ran 13.9 @ 101mph with 2.21 60 foot - That was a 3500 launch (obviosuly not dropping the clutch) and it was on 19" chromes with 235's. Also remember its a sedan... Bass - how did you get a 1.9 60 foot?

I was quite happy with this time - although shoudl i expect more? I think the sedan is at least 150kg heavier than the coupe?

[marchGTR]

standard you should have 145-155rwkw and with those mods I think 200 is realistically possible. should feel sugnificantly different. I would think that with 2.0-2.1 you should be able to get mid 13's quite consistently?

[r33GTS-t-200kw]

well in my r33 coupe its doing 108mp trap with 13.5 on the quarter... lots of wheelspin and a bad 60 footer will do this... but oh well

[shonen]

Your missing a fmic.......

I went through the same thing in my car......I got the PFC by necessity as my afm stuffed up and I decided to get a z32 and pfc while I was at it.

I had pretty much the same mods, exhaust, pod, blitz ID3, z32 and pfc.

Have to admit the pfc DID make a little bit of difference but not as much as I expected, but once the front mount was installed and the pfc had a bit more room to do its magic it made a HUGE difference.

Admittedly the dyno is a bit of a happy dyno...but the difference the fmic should be legit as it was done on the same dyno...

I ended up going from 183rwkw before fmic to 220rwkw after fmic.

[Abo Bob]

I've got a link somewhere that says the sedan is only 20kg more than the coupe.

[shonen]

bob does the sedan have a longer wheel base ??

Another guy on here wants to do a manual conversion on his and wants to know.....

[Abo Bob]

I think there is a couple of cm in it there and about 10 in the boot. We should measure up next time we see each other.

[shonen]

I think there is a couple of cm in it there and about 10 in the boot.  We should measure up next time we see each other.

hahahah careful what you say bob.....people will get the wrong idea....

we are measuring wheel bases people................................

[Motorman]

I got a front mount installed a few days ago. The car is alot quicker all the way through the revs. I can't belive it actually seems to have less boost lag - theres alot more response all the way through the revs. It actually felt 'doughy' before, now it feels almost like 2 people have got out of the car. It hasn't been retuned yet, i'm not sure how much would have to be adjusted with just the addition of an intercooler... it will be done this week some time.

I've driven a fair few cars (mainly 32's and 33's) with bigger front mounts and the same mods as mine minus the computer and really have felt hardly quicker than cars with stock coolers... maybe r34's with better breathing on the intake and exhaust and tighter a/f ratios really put alot more pressure on the stock cooler??

Either way i'm happy I'll get a dyno readout in a while and let you know - i'd be happy with anything over 190kw...