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Endurance R32 GTS-T build

smart_garrett

By smart_garrett,
in Motorsport Builds

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Duncan Grand Master

Duncan

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Posted

I get wanting to keep the rb if you can, and I don't have any experience with how(if?) rb25de can make 220hp n/a. I assume it is possible with the right intake, exhaust and cams but of course pretty much no-one needs to get power out of these without a turbo so there won't be much experience around. the 25DE NEO head is the best of the range for breathing so it can support the flow you are looking for easily

On the other hand, it can absolutely be reliable at that power level, they are designed for at least 50% more power in stock form so everything will is safely oversized like rods, bearings, oil flow etc etc. For oil pump I would still use a large aftermarket one like nitto on an extended crank collar for safety, and you will still need a large oversize sump.

Depending on freedoms, you could look into the premade (or custom) adaptors to fit the 6 throttle bodies and plenum from rb26 to the 25 head which might help with throttle response unless the plenum is too large for 220hp

Clearly downsides are it is heavy and long compared to more modern alloy v6 or I4 which is not good for corner weights, and no doubt those annoying k-series motors are more readily available there

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smart_garrett
smart_garrett

Hello all, First a quick intro about myself i'm currently a junior in university studying engineering across the pond in America, and my goal is to have the first W2W circuit r32 in America. This

smart_garrett
smart_garrett

Have had the car out for a couple test days now. Everything seems to be going great. I've done a lot of data logging and have been reviewing it all. My friend and I made up a livery for the car too wh

smart_garrett
smart_garrett

Just picked up the car from 3R Racing here in Colorado. I had them mig weld the cage as tig was a bit out of my budget while already breaking the bank for this cage. 1.75" x .12 DOM. Looks great thoug

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smart_garrett Enthusiast

smart_garrett

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Well. This is quite a bit overdue for an update lol.. 

Recently been finishing up my engineering degree and working out new jobs.. taking most of my time. In some free time I've been working with that race team with the e46 (shown in my first post in this thread). In my spare time I've been picking away at the r32.. Car is still with me and is now getting a vq35hr (let me explain before incoming hate). Very robust engine especially at stock power levels, parts available everywhere here over in the U.S/Canada unlike an rb, lighter, center of mass further back and lower, less complexities compared to a turbo engine, etc etc. The power levels this engine puts out are exactly where I need to be classing wise with weight/power ratios. I've completely stripped the chassis harness and have been building a nice (dtm connectors, tefzel wire, dr-25,etc) chassis harness for the simples. I'm going to be using a stock 350z ecu/ecm paired with an aim dash for now until the rest of the car is sorted. Have got the engine in the bay and pretty much mounted up with some brackets we have made. Lots of things on order (cooling, driveshaft, diff, etc etc). It's coming along pretty well so far, not sure how many vq r32's exist in the world. Got the inspiration from a local racer with a vq37vhr in an s14 who wins lots of races.

 

 

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GTSBoy Grand Master

GTSBoy

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Posted
On 3/3/2022 at 11:36 AM, smart_garrett said:

not sure how many vq r32's exist in the world

There's more than a few here in Oz with VQ30DET. Many in WA, as there was a shop over here that specialised in the swap. The Skid Factory (Youtube) have a series on an R32 with one in it.

Using the stock ECU might be a recipe for tears. Be prepared for it to fight you. You might be far better off jumping straight to an aftermarket ECU.

smart_garrett Enthusiast

smart_garrett

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On 3/3/2022 at 12:16 AM, GTSBoy said:

There's more than a few here in Oz with VQ30DET. Many in WA, as there was a shop over here that specialised in the swap. The Skid Factory (Youtube) have a series on an R32 with one in it.

Using the stock ECU might be a recipe for tears. Be prepared for it to fight you. You might be far better off jumping straight to an aftermarket ECU.

I was looking at that as I will be fighting some canbus protocol, but from talking to some others I think I will be able to work it out. If I can’t get this to work I’m starting with Bosch here in a couple months and hoping for some serious company discounts possibly on ecm items where I will be working, if not I’ll probably go with an ecumasters.

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