Some Questions About My Setup

[NissanFreak]

If someone doesnt end up buying my setup I want to make some changes. I am aim to make 450kw at all four on pump.

The engine is a forged internals RB26 with a RB30 bottom end, all the usual stuff has been done plus o-ringing etc. It has a CR of alomost 9.0:1. The questions I have are:

1) Will a Bosch 044 feeding off a surge tank that is primed by a R33 GTR Fuel pump and 700cc Injectors flow enough?

2) Will the fuel lines require upgrading in diameter?

3) Will a upgraded fuel rail and regualor be needed?

4) What diameter exhaust for a T04Z 0.96 Rear?

5) What type of wastegate ie. Size should I use to allow me to run low boost?

Thanks Guys.

[WetGTR]

If someone doesnt end up buying my setup I want to make some changes. I am aim to make 450kw at all four on pump.

The engine is a forged internals RB26 with a RB30 bottom end, all the usual stuff has been done plus o-ringing etc. It has a CR of alomost 9.0:1. The questions I have are:

1) Will a Bosch 044 feeding off a surge tank that is primed by a R33 GTR Fuel pump and 700cc Injectors flow enough?

2) Will the fuel lines require upgrading in diameter?

3) Will a upgraded fuel rail and regualor be needed?

4) What diameter exhaust for a T04Z 0.96 Rear?

5) What type of wastegate ie. Size should I use to allow me to run low boost?

Thanks Guys.

<{POST_SNAPBACK}>

Very nice setup - RB26 Head, Rb30 bottom end, T04Z & to top it off a 9.0:1 compression ratio. This is what I was dreaming about for myself or something very close. Ok more to the point, your questions.

1. Yes a Bosch 044 pump will work, but 2 of them will give you insurance. The standard R33 GTR pump to prime the surge is OK, Ive got the same setup, works fine. 700cc injectors are up to the task and small enough for good atomisation in low rpms.

2. It's a good idea to upgrade to bigger lines, I have 2 bosch 044 pumps from a surge that run -6 lines to the rail. If only using a sigle fuel line, try at least a -10 line.

3. The fuel rail will be needed to allow larger lines to be attached and a fuel reg that rises with pressure - a rising rate fuel reg.

4. The exhaust playes a large part. The larger the better. Now if its a single system, then at least 3.5" all the way & a 2" screamer venting to atmo. This will be loud but its cheaper. If a twin 3" system, then you are able to plump back the screamer and run 2 x mufflers. Nice and quiet.

5. The wastegate size works as so. The smaller it is, the higher minimal boost you are able to run. For example a 30mm wastegate might only allow you to run say min 1.3bar, where something like a 60mm will let you go down to 0.8bar. These are only examples so the largest diameter wastegate will allow the minimal boost settings.

Edited February 11, 2006 by WetGTR

[NissanFreak]

WETGTR: Thanks for your reply.

So If I run two -6 lines to the rail and a -10 return line will this do?

So the 700cc will allow enought fuel for the target 450kw at all four on pump fuel?

I was thinking of using a Tial 44mm Gate that will allow both high and low boost to be run

For the exhaust I was thinking of a straightrough 3.5" system with a 4" MAGIC Cat and twin mufflers at the rear and I will have the screamer venting to atmo.

The only other question Is what do I do for the ingintion systemy can I use Mercury Coils with the HKS DLI Type 2 or should I stick to the standard units?

NissanFreak

[WetGTR]

WETGTR: Thanks for your reply.

So If I run two -6 lines to the rail and a -10 return line will this do?

So the 700cc will allow enought fuel for the target 450kw at all four on pump fuel?

I was thinking of using a Tial 44mm Gate that will allow both high and low boost to be run

For the exhaust I was thinking of a straightrough 3.5" system with a 4" MAGIC Cat and twin mufflers at the rear and I will have the screamer venting to atmo.

The only other question Is what do I do for the ingintion systemy can I use Mercury Coils with the HKS DLI Type 2 or should I stick to the standard units?

NissanFreak

<{POST_SNAPBACK}>

A -10 return line is not nessary as its only returning unused fuel back to the tank. Use the standard return line on your car. If you haven't one, use a -6 return line.

Yes 700cc injectors are up to the task. R32-GTS got 468kw on pump fuel with 700cc injectors.

The Tial 44mm might be a bit small. The diameter of the valve that lets out all that extra exhaust gases at low boost setting is - only 44mm. Try getting a 60mm version. This version will allow definately allow low boost.

The Exhaust setup your thinking of will be OK. She'll be breathing well.

Igition systems, can get tricky. Have you got the Mercury coils? Have you got the HKS DLI Type 2? If you don't, I know the HKS item works well and provides good spark. There are also other options like going to a CDI unit but it depends on how far you want to go. The HKS will do the job, and do it well.

As for coils, I bought 6 x Mercury outboard coils, low resistance racing leads and facricated the whole setup for a RB26. You can't imagine the how big and deep the spark is! Only thing is my tuners eyes popped out and he loved the setup as it looked nice and there was good spark but he wouldn't tune my car. He said that the setups he does, he knows them and has plently of R&D with it. So changing something like this, changes the way he tunes and he does not want that and I really want him to tune my engine so off came the Mercury Coils & leads and that nice fabricating I did. They will be up in the for sale sections soon. Anyway ask your tuner first if he will tune your car with these on.

Edited February 12, 2006 by WetGTR

[NissanFreak]

WETGTR: Do you mind If I ask if you email me regarding your coils and your soon to tbe changed ignition system at [email protected] , also I think I will change to 800cc Injectors since 468rwkw is not quite 450awkw and Id like to be on the safe side.

Cheers

NF

[WetGTR]

Email sent.

[CruiseLiner]

A -10 return line is not nessary as its only returning unused fuel back to the tank. Use the standard return line on your car. If you haven't one, use a -6 return line.

Yes 700cc injectors are up to the task. R32-GTS got 468kw on pump fuel with 700cc injectors.

The Tial 44mm might be a bit small. The diameter of the valve that lets out all that extra exhaust gases at low boost setting is - only 44mm. Try getting a 60mm version. This version will allow definately allow low boost.

The Exhaust setup your thinking of will be OK. She'll be breathing well.

Igition systems, can get tricky. Have you got the Mercury coils? Have you got the HKS DLI Type 2? If you don't, I know the HKS item works well and provides good spark. There are also other options like going to a CDI unit but it depends on how far you want to go. The HKS will do the job, and do it well.

As for coils, I bought 6 x Mercury outboard coils, low resistance racing leads and facricated the whole setup for a RB26. You can't imagine the how big and deep the spark is! Only thing is my tuners eyes popped out and he loved the setup as it looked nice and there was good spark but he wouldn't tune my car. He said that the setups he does, he knows them and has plently of R&D with it. So changing something like this, changes the way he tunes and he does not want that and I really want him to tune my engine so off came the Mercury Coils & leads and that nice fabricating I did. They will be up in the for sale sections soon. Anyway ask your tuner first if he will tune your car with these on.

<{POST_SNAPBACK}>

hey mate, sounds interesting

so whats the new setup? any particular reason y he doesnt want to use the mercury coils and leads, besides him being unfamiliar with them?

any more info appreciated adam, is their problems with the setup or just precaution for his piece of mind?

cheers

Brad

[WetGTR]

Hi Brad,

I thought you might get worried, don't be

He will tune my car to make the power I want and everything else. He knows all the parts I've used and how I setup the engine, as it was done with his guildance. He hasn't used these Mercury Coils and would rather stick with the Spitfire Coils I have. He knows them, his tried them and likes the concept of coil over plug as he personally hates leads.

Besides all that, what he says I do! Maybe lame but he is to me "da man"!