Help With Mods Before Nistune

[KiwiRS4T]

That's right about the dip at 5000rpm but those OEM coils are so cheap I would buy them now anyway or you might be paying twice as much in a years time.

[wolverine]

I'm with Bob buy them. It is inevitable that coils on a neo will fail.

I am not usually a fan of buying parts just in case but there is almost no downside in buying stock coils for that price. Make sure you buy coils for an R34GT-t / neo RB25DET not the R33 in that Ebay advert.

Alternatively buy a can of crc urethane seal coat and give the coils a good even spray it will keep you going for a good while in most cases.

[fritters77]

Yeah cheers

Thanks for your help I will invest in some new ones for sure....

[Marshstag]

Definitely get a new fuel pump - Deatschwerks, Denso, Nismo, Bosch 044 and wire it directly for full voltage (with a relay - tutorials on this site) and change your fuel filter. Do you have a high flow panel filter? Whatever air filter you use check to see if it needs replacing.

I reckon I'll do my fuel pump before I get the Nistune. Which one is regarded to be the best?

The Walbro GSS-342 seems popular, but I've read good things about the Nismo and Deatschwerks to!

[scotty nm35]

The walbro's are good (If you get a legit one) but only up to around 20 psi, for boost above that I would recommend either of the other pumps. What are your power goals?

[dirtyRS4]

just ordered some OEM coilpacks from that ebay site much cheaper than nissan.

[Marshstag]

The walbro's are good (If you get a legit one) but only up to around 20 psi, for boost above that I would recommend either of the other pumps. What are your power goals?

Hmm, sounds like the Walbro would be suitable - I'm not looking to set the world alight...

[wolverine]

As long the it is a genuine Walbro and it gets 14volts they are fine unless you start leaning on them really hard as Scotty says.

For a stock turbo any pump will be fine.

[KiwiRS4T]

I've had a Walbro for about three years. Directly wired I have made up to 250awkw with it. Now with the RB30 and GT3540 its is still there but just feeding the surge tank.

[driftae76]

are the walbro's noticeably louder than the stocker?

[jet_r31]

I reckon I'll do my fuel pump before I get the Nistune. Which one is regarded to be the best?

The Walbro GSS-342 seems popular, but I've read good things about the Nismo and Deatschwerks to!

I got the deatschwerks, hardly breaks the bank at around $215 delivered, and small like the walbro

cheers

darren

[KiwiRS4T]

are the walbro's noticeably louder than the stocker?

Walbro is quiet as. Bosch 044 is noisy as.

[OMY31T]

my GSS342 is not to noisy, makes a bit of a buzz from time to time, i put rubber inserts in my cradle to stop vibration and noise(R33 Skyline).

i have a few mods planned for the year for my s2 RS4S.

walbro GSS342

nismo injectors

splitfire coilpacks

HPI FMIC

z32 AFM

TD06H-20G (internally gated version with replacable actuator springs - not chasing to much power)

tomei oversize metal headgasket - so i can run 16-18 psi through the neo.

ECU - probably a nistune, wasnt real happy with my powerFC.

i think that should make me a tidy 250awkw without pushing the engine to hard.

Edited January 21, 2012 by OMY31T

[dirtyRS4]

exactly the way i did my s1 with rubber inserts and hard wired with constant voltage, not much buzzing only on idle.

[Marshstag]

Quick couple of questions about the Nismo fuel pump - Is there a specific model applicable to the RS4-S and where is a good place to source one from?

[wolverine]

260RS version is the one you want.

[_Ryan_]

Cheers thanks for the info.....Yeah I currently have a flat spot at 5000rpm thinking its the coils tried taping them up as well as a high temp sealant ...with no change....I just don't want to get the car on the dyno and something like that fail and have to get it re tuned later........Change spark plugs recently and re gaped them to

I've got a pod filter and in the proces of making a cold air box for it.....

Thanks again ....

Flat spot is the tune. Cool packs break down. Of you can get new OEM cheap, do it now, has to be done at somepoint and means you aren't risking a tuning session.

Pumps: nismo or bosch

Cat: got a highflow item?

Ebc: yes, gizmo are good value.

Air filter: new highflow is $50, check yours.

O2 sensor? Has it been replaced? Dunno if your tuner will touch closed loop anyway.