I Want More Power...

[Madaz]

2x good call

Don't know steve, I'd only be guessing.

Maybe speak to a few more tuners and go by the majority.

get a tomei FPR cause they look like the stock 1 and fit in the same position un like the other ones that u have 2 attach 2 the engine bay and have 2 run hoses which u may get defected 4

[SLED]

get a tomei FPR cause they look like the stock 1 and fit in the same position un like the other ones that u have 2 attach 2 the engine bay and have 2 run hoses which u may get defected 4

Nismo fpr bolts directly onto the stock fuel rail like the original one and half the price of the Tomei.

[SLED]

This is the Nismo fpr steve

http://cgi.ebay.com.au/NISMO-FUEL-PRESSURE...oQQcmdZViewItem

hope it works

Nismo FPR

[Madaz]

yeah works i found that on nengun

>>HERE<<

[cruzin33]

Any idea what one would be best? they are both from Sliding Performance

Tomei Adjustable Fuel Regulator RB25

Model Number : 200771

Direct replacement for your standard item

Price and delivery from Australia

Australia : $175 Delivered 2-4 Days

Nismo Fuel Regulator R33 GTST, $169 Delivered

[ovrtym33]

Any idea what one would be best? they are both from Sliding Performance

Tomei Adjustable Fuel Regulator RB25

Model Number : 200771

Direct replacement for your standard item

Price and delivery from Australia

Australia : $175 Delivered 2-4 Days

Nismo Fuel Regulator R33 GTST, $169 Delivered

im sure they both are good and both look stock, but why have them sent from interstate when u can buy them here in sa??

by the way there is nothing wrong with your modified plenum, if i can get 300+rwkw from mine which is the same im sure u can aswell

[Simon-S14]

truth is you dont need a FPR til around 350 rwkw... ive seen a few cars making that power, reliably, with the stock nissan reg!!

what you need is bigger injectors, a good pump and a tune Steve: in your case, go get some S15 injectors then tune the PFC and you'll be laughing.

[Madaz]

Cheers Simon, so s15 are plug and play for me

[Simon-S14]

yup

[Tangles]

yeah S15 480cc are plug and play

was going to buy a set but decided on deatschwerks, for the price

ordered 450cc (sneaky sneaky lol) they said no stock, how about 550's for same price

lol

now Simon, I dont agree with "what you need is bigger injectors, a good pump and a tune".

it always comes down to budget. if someone cant afford the Minimum $500 for 480cc+ injectors, then a $165 Nismo FPR isnt a bad thing. Using aftermarket ecu or piggybacks, the fpr can be made to work Well with a larger fuel pump, etc.

Ive been happy with each tune Ive paid for since having the FPR. 120awkw original plus fuel pump/fpr/safc went to 140awkw, added stuff retuned to 160awkw tune, then 190rwkw tune x 2

next tune stock FPR will go back on, as I'll have the injectors and the Pfc. so it wont be needed.

but yeah I argue those who say FPRs are shit. they have their place IMO.

[bish33]

bill @ ATS told me stock inj. on a R33 are good for 230kw dont know if RB20 are the same cc im guessing possibly not

hey just got my car tuned yesterday i hav a s1 r33 gtst: ase FMIC, HKS 3.5" cat back, 500hp walbro fp, and pod. running 11 psi and i made 221.1rwkw. No remap or nothing, guys at turbo tune were suprised considering the mods and so was i

[Madaz]

Jarad thats with standard turbo

[Simon-S14]

i have proven that you can make good power with FPR and pump.... mine made 283 rwkw on STOCK INJECTORS with a malpassi rising rate. even now in its current trim it makes 265 rwkw, still stock injectors and less boost to keep it reliable.

that said tho.. more pressure in the rail puts more strain on various parts, such as the pump, o rings, injectors themselves etc... the risk of failure is higher.

So ive decided to upgrade my injectors and back the fuel pressure off a bit. and aim to make the same power (adding cams to but thats a different story)

yeah S15 480cc are plug and play

was going to buy a set but decided on deatschwerks, for the price

ordered 450cc (sneaky sneaky lol) they said no stock, how about 550's for same price

lol

now Simon, I dont agree with "what you need is bigger injectors, a good pump and a tune".

it always comes down to budget. if someone cant afford the Minimum $500 for 480cc+ injectors, then a $165 Nismo FPR isnt a bad thing. Using aftermarket ecu or piggybacks, the fpr can be made to work Well with a larger fuel pump, etc.

Ive been happy with each tune Ive paid for since having the FPR. 120awkw original plus fuel pump/fpr/safc went to 140awkw, added stuff retuned to 160awkw tune, then 190rwkw tune x 2

next tune stock FPR will go back on, as I'll have the injectors and the Pfc. so it wont be needed.

but yeah I argue those who say FPRs are shit. they have their place IMO.

[SLED]

i have proven that you can make good power with FPR and pump.... mine made 283 rwkw on STOCK INJECTORS with a malpassi rising rate. even now in its current trim it makes 265 rwkw, still stock injectors and less boost to keep it reliable.

that said tho.. more pressure in the rail puts more strain on various parts, such as the pump, o rings, injectors themselves etc... the risk of failure is higher.

So ive decided to upgrade my injectors and back the fuel pressure off a bit. and aim to make the same power (adding cams to but thats a different story)

Did you check your injector cycle under load? Were they maxing out? Once you go past 80% injector cycle, it's usually time for an upgrade. At 283kw with STD injectors I reckon you must have been coming close.

[bish33]

Jarad thats with standard turbo

yes its with the standard turbo

[R31 drift pig]

that said tho.. more pressure in the rail puts more strain on various parts, such as the pump, o rings, injectors themselves etc... the risk of failure is higher.

Thats a risk Im willing to take with the 31, as it'll be driven mostly on the track. (only take it out on the street rarely)

I dont want to spend any more cash on it anyways I just want to drive the f**ker.

[Simon-S14]

Did you check your injector cycle under load? Were they maxing out? Once you go past 80% injector cycle, it's usually time for an upgrade. At 283kw with STD injectors I reckon you must have been coming close.

yeah they were pretty close to 100% tho not quite hitting it... I certainly didnt want to run this much boost and on maxed out injectors.. so we wound the boost down and retuned for 265 rwkw... still heaps of head room with the injectors.

however the rail pressure is higher, i'm going to chuck a set of S15 injectors in there and then still run the FPR but only have the railpressure slightly more then stock.

[SLED]

yeah they were pretty close to 100% tho not quite hitting it... I certainly didnt want to run this much boost and on maxed out injectors.. so we wound the boost down and retuned for 265 rwkw... still heaps of head room with the injectors.

however the rail pressure is higher, i'm going to chuck a set of S15 injectors in there and then still run the FPR but only have the railpressure slightly more then stock.

Yeah I'm still at the experimental stage with fuel pressure so not sure how much I should be running in the SARD rail yet.

[Ryanrb25]

My setup as of this week will be

660 sard injectors

gt2871r 56T

Power fc

bosch 040

z32 afm

at the moment getting a very responsive 200.1rwkw on 8psi with no tune afr's are 10:1 across the board. Hoping for a responsive 240-250ish on 17psi with a fat torquey midrange.

i heard years ago FPR's can create an uneven spray from the injectors, can you shed some light simon?

[Simon-S14]

i call BS on the un even spray... irs more or less due to the fact that a FPR change means that you have to retune it, cause the FPR is spraying more fuel in per given time on the injector... so the injector timing needs to be brought back.