Jump to content
SAU Community

Recommended Posts

1989 5 Spd. 240SX

MOTOR AND MODS:

1990 Silver R32 RB20DET

HYBRID FMIC KIT

MEGAN RACING 3" CATBACK

WALBORO FUEL PUMP

(2) 12" VETTE FANS

300ZX FUEL FILTER

NEW 300ZX CLUTCH

Koyo KA24DET Radiator

Hey Guys,

I just bought a 1989 240SX (Silvia) w/ RB20DET swap for my little brother. I also own a RB26DETT S14, that maybe some of you have seen. www.underground-motorsports.com

These are the current mods listed above, but I am hoping to take his car to about 250rwkw, which I have been told is the max at a stock engine.

We don't have any way to get cams, etc here. So, I'd like to push the internals as much as possible, without blowing them.

I am working with Innovative Turbo on this car here in the States. They sponsored my RB26 S14, and have recommended this turbo, http://innovativeturbo.com/cgi-bin/htmlos....121082412330414

However, they are going to be building it with a .63 a/r and 360 degree thrust bearings.

Could you guys give me an idea on your recommended upgrade path?

What sort of times would you guess with these mods?

Also, what ECU would you recommend? I've seen Microtech, but I have got varied reviews.

Thanks!

Chris

I have the GTR Cams and Injectors out of my RB26 Silvia. I will just use those. I didn't realize they swapped out.

I have a Walbro 255/lph with Nismo Fuel Pressure Regulator.

I notice alot of people simply using the SAFC, is this enough? Or Maybe Greddy Emanage?

Thanks!

I am working with Innovative Turbo on this car here in the States. They sponsored my RB26 S14, and have recommended this turbo, http://innovativeturbo.com/cgi-bin/htmlos....121082412330414

However, they are going to be building it with a .63 a/r and 360 degree thrust bearings.

Could you guys give me an idea on your recommended upgrade path?

Why are you getting/letting Innovative to give you a PLAIN BEARING turbo? Shoot, I'd get into their titanium compressor, dual ceramic ball bearing range :aroused:

As for what to do, here is my most used list for a 225rwkw (400 bhp) RB20DET;

* Power FC with Boost Control Kit & Commander

* Split dump with mandrel 3.5" exhaust & hi flow cat

* GCG ball bearing hi flow RB25DET turbo

* Mazda RX7 Sereis V Turbo 550 cc injectors

* R32/33 GTR cams and valve springs

* adj camshaft pulleys

* Z32 AFM

* Pipercross POD filter with heat shielding

* Upgrade the ambient air feed substantially

* Standard R33/34 GTR intercooler

* 63 mm pipework from the turbo to the intercooler

* 75 mm pipework from the intercooler to the throttle body

* 85 mm aluminium pipework with silicone pipe adaptors from the turbo to the AFM (the standard rubber keeps getting sucked closed)

* OS Giken twin plate clutch

* Electric fan (remove the standard fan)

You will notice it does not have a thick head gasket, I personally don't believe in them at all and at that power level are not necessary anyway. If you want a bit more average power then o'ring the head, use a standard head gasket, port it and polish the combustion chambers. Being a hi flow of the standard dimensioned turbo, all the water, oil and air pipework will fit back up as per standard.

In a 1245 kg R32 GTST, it ran a high 11 on Goodyear slicks at 121 mph at a lousy track.

Hope that helps :(

...

* R32/33 GTR cams and valve springs

* Electric fan (remove the standard fan)

Can you confirm that the GTR springs work in the RB20. The hassle of doing springs with the head on and a suspicion that the sring rate could be different between RB26 solids and RB20 hydraulic meant i didnt bother. Dont you get away with running softer spring rates in solid lifter engines as the valvegear is lighter then hydraulic valvegear, and in an ideal world arent you loking to run as soft a spring as possible? Or is that more theory that doesnt translate to practice :Oops:

LOL i would have surely butchered my car if i tried to do the springs as well. (My cams are going off to a machine shop on Friday to check if they are wraped/bent?!?!?)

And do you run the elctric fan with std radiator, any coolign probs, i badly want to hoy the std viscous fan but have been told repeatedly to stick with the std Nissan fan :(

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...