efrain

Is a good option to get a performance fuel regulator? Where could I found one?

NismoPick

nope... deffinately a BAD option. the word "performance" in Latin actually means "crappy."


Try ebay... they have a gazillion fpr's... if you have a turbo setup, get a rising rate fpr. If you have an n/a setup... I don't think ya really need one... but hey, why not?

efrain

There is no specifications? Can I buy anyone? And hey nismo, the thing is; will I get any bennefit from it? My car is N/A

Heat Rave R

Unless you've built up other areas of your engine, an adjustable FPR probably won't do much good.

efrain

Well my NA just have headers, cold air intake, msd, ported, 60 mm TB. Will the FPR make any difference?

NismoPick

hey efrain... did you know that you don't have to "attach" that pic everytime... you can just put it in ya signature.

efrain

I know I just like to change it from time to time. And it would be very helpfull if you can answer the question.

NismoPick

I think Heat Rave answered your question... but I guess I'll repeat it:

Do you have an air/fuel ratio gauge in your car?

efrain

I've got to check. But I don't think so. I just bougjht the car like 4 months ago, so I am still getting familiar to it. As much as I know teh only extras that the car has are the one I told before: Well my NA just have headers, cold air intake, msd, ported, 60 mm TB.

NismoPick

w/ a 60mm tb you could prolly increase the fuel a lil bit... but you'll deffinately need an air/fuel ratio gauge to make sure it's running where it should.

Heat Rave R

Unless it's a wideband A/F gauge, it'll be a poor way to tune fuel. The most proper way would be to dyno it for proper FPR settings, or else gain access to a wideband O2 sensor.

efrain

I was looking at MSA and they have a FPR for $269.99
In ebay they have universal FPR's for $50.00. Which is the better option? Does the MSA FPR is so much different from the $50.00? Will I get the same bennefits from any FPR? MSA claims that the car will increase an avg. of 20 HP . Is that true?

NismoPick

Again... it's the difference between a "Rising Rate" fpr, and an "Adjustable" fpr.


The MSA one is a rising rate, and they SHOULD HAVE put in there that it works best on forced induction cars.

The ones on ebay (99% of them are the square box w/ the gauge) are okay... but you get what you pay for.

We can offer only so much advice. Eventually you have to make a decision yourself.

efrain

thank you

Bleach

With the other modes you've done, I think you should leave the stock FPR and get a performance cam. Mild or medium duration (due to stock compression). There's plenty of fuel stock, just not enough air at high rpm. The cam will let the engine breath more in at those high revs.

efrain

Hey Bleach, the cam of a turbo 280zx will make it fpor me?

lww

No. The cam from a Turbo will actually make things worse for an NA engine. There's less overlap in the intake and exhaust lobes because it is designed for a compressed intake charge not a vacuum intake charge.

You need a performance cam grind for a NON-turbo car. You will actually loose performance with a turbo cam in a non-turbo car.

Bleach

correct. In actuality, the stock turbo cam is ALMOST the same as the stock non-turbo. I think I remember the specs being that the turbo was ~5 deg less duration on intake but the same on the exhaust lobe.

I once told someone that needed a replacement turbo cam that the stock non-turbo would work ok because the specs are very simular. I guess I'm not totally sure on that but it should work fine.

For your non turbo you want more lift and duration. Don't go with too much lift or you need to replace the valve springs with NISMO springs that won't bind up. 0.460 lift if max. Duration should be 270-282 max. Any longer duration and the lower rpm compression is greatly lowered and you really should do something to raise compression. That would involve an engine teardown. So bascially mild cam upgrade. Stage 1 or 2 either from Crane Cams or Motorsport Auto. Also, buy all brand new rocker arms with a new cam. Don't get the USA made ones, get Japan rockers. I think Rockauto.com has them for like $13 ea. Very cheap! Other places charge 20-40 each. These are Japan made like the Nissan originals.

Other mods to do would be to remove the head, port match the ports and port the intake manifold runners and throttle body opening to match the larger throttle body. All that along with the bigger cam and then you might need some more fuel at higher rpm.