Paul's R32 Gtr Track Build

[paulR32gtr]

Front bar is off and intake cleaning and assembly has begun.

Made up a bracket for the positive battery cable. I have an actual red battery post on the way (currently is a firewall pass through) so I can put a lug on in place of the factory terminal and connect both that and the cable to the rear to the under side, shielded up of course, then have the post for jump starts.

Pulled out the Tein Super Streets and put the revalved RA's in - need to start selling off some of this gear!

[355GTS]

Paul

are you fitting a surge tank setup? If so what arrangement?

Ev

[paulR32gtr]

are you fitting a surge tank setup? If so what arrangement?

Yeah I am going to have to sort something out, particularly as it will be on E85 so pump needs to be upgraded at a minimum. Obviously with the not so ideal tank set up in the 32 a surge tank is going to be high on the agenda. Will take Racepace's guidance on that one.

What did you end up doing with yours?

[355GTS]

Nothing yet other than fit the upgraded Walbro 255l/h pump. The car had surge issues on the bottom half of the tank all day at lakemountain. Chris thought it was a wiring problem with them pump. but all the guys racing said a surge tank (or keep the tank pressed full of fuel) is the only way to go....

looking into details now...I asked Pro Fab on the forum if he has any ready made kits for the 32. waiting to hear a reply on that one. I am trying to do a bit of work myself as getting the shop to do everything is hurting my wallet too much....(ouch)....

[Duncan]

Nothing yet other than fit the upgraded Walbro 255l/h pump. The car had surge issues on the bottom half of the tank all day at lakemountain. Chris thought it was a wiring problem with them pump. but all the guys racing said a surge tank (or keep the tank pressed full of fuel) is the only way to go....

looking into details now...I asked Pro Fab on the forum if he has any ready made kits for the 32. waiting to hear a reply on that one. I am trying to do a bit of work myself as getting the shop to do everything is hurting my wallet too much....(ouch)....

Brad does do an excellent surge setup for 32 GTR, and I have one in my car. It mounts under the car just in front of the diff and has surge tank and pump mounting in one. It makes a big difference in reducing surge, especially on rally stuff where the cornering is not constant, also pretty good for circuit. It is also nice and high under the car so lots of other things get hit first if you bottom out.

But you have to remember that even a 2l surge tank empties pretty quickly on these cars in a long high g corner, so looking at the standard pickup is also important. I ran out of fuel twice in the first race weekend I was using the surge tank because I did not allow for the long turns where the fuel runs away from the lift pump pickup....more work to be done on my car

[$$slowmedown]

Brad does do an excellent surge setup for 32 GTR, and I have one in my car. It mounts under the car just in front of the diff and has surge tank and pump mounting in one. It makes a big difference in reducing surge, especially on rally stuff where the cornering is not constant, also pretty good for circuit. It is also nice and high under the car so lots of other things get hit first if you bottom out.

But you have to remember that even a 2l surge tank empties pretty quickly on these cars in a long high g corner, so looking at the standard pickup is also important. I ran out of fuel twice in the first race weekend I was using the surge tank because I did not allow for the long turns where the fuel runs away from the lift pump pickup....more work to be done on my car

Any thoughts on additional pick ups yet?

Only thing I have come across are these...

http://www.autoperformanceengineering.com/html/pickups.html

[krzysztof]

Paul, are you doing anything in regards to heat travelling through the firewall (turbo side) ?

[paulR32gtr]

Ordered my exhaust this morning - going a customised Midori Silent High Power NR titanium. They are making it up so it doesn't drop down in size at the join to the cat, staying 90mm all the way. Midori are also making up a 90mm titanium test pipe. The exhaust meets with some new regulation in Japan so noise, updated Jasma or something - I think it sits around 94db. Although a bit pricey, after weighing up the other Ti options (too loud), and considering the cost of getting booted off the track for being too loud at Phillip Island which is usually a $1k weekend, I have managed to justify it to myself!

Near finished off the positive battery stuff last night until the post arrives. Neatened up the wiring a bit and made up a cable for the extra plugs to the interior loom. Spaced the bracket up a little to to avoid any shorting, will need to get some shielding in underneath just in case - don't want any sparks around that area.

Flared fitting on to factory power steering hard line, just need a straight connector for the hose and I am in business.

Paul, are you doing anything in regards to heat travelling through the firewall (turbo side) ?

Hi Chris obviously first step is plugging up the air con & heater holes with some alloy plates. I have been looking at options of different materials. On my other car I just have some of that ACL heat shield around there and it works OK, however things do heat up in cabin on a warmer day. And that stuff is pretty hard to work with.

I have been toying with the idea of doing a lot of the transmission tunnel (gearbox out) and exhaust area on both cars to really get the temps under control. I have my eye on this stuff from Motorsport Connections http://www.mscn.com.au/scripts/prodView.asp?idproduct=488

[krzysztof]

stick on solution, nice.

i plan to have full interior minus a/c, possibly also gut the evaporator from the heater box, but need something to replace the heatproof mat that lines the firewall on the inside as it weighs a ton!

little different in your case with a gutted car as you have some freedom in keeping looms off the firewall

watching this space, cheers

[paulR32gtr]

stick on solution, nice.

Yeah I think I would still fasten it depending what the adhesive is like. I can't imaging anything sticking too well to the rubberised chip coat under my car. But to factory paint I reckon it would be OK as long as it is cut / shaped correctly.

[Ants]

Ordered my exhaust this morning - going a customised Midori Silent High Power NR titanium. They are making it up so it doesn't drop down in size at the join to the cat, staying 90mm all the way. Midori are also making up a 90mm titanium test pipe. The exhaust meets with some new regulation in Japan so noise, updated Jasma or something - I think it sits around 94db. Although a bit pricey, after weighing up the other Ti options (too loud), and considering the cost of getting booted off the track for being too loud at Phillip Island which is usually a $1k weekend, I have managed to justify it to myself!

A custom Midori exhaust system....wow Keen to see that (BTW what limb / organ are you selling to pay that off )

So you can get booted off a circuit because the race car is too loud ?

[paulR32gtr]

Haha yeah it did hurt a little but I am pretty good at justifying this stuff to myself.

The CAMS tracks only have a limited number of 95db days, the rest are 75db on an angle at blah blah meters. They have a guy there with a decibel meter, and local council have even given decibel meters to the residents at Sandown. Buy a house near a race track then complain about the noise ..... hmm

One of the R32's with the Tomei Ti exhaust, which I was looking at, was booted first session last time I was at PI. Costly exercise after trailer hire, fuel, accomodation, entry fees etc etc to get booted first session. You get one chance to rectify it, but what you going to do! Some of the Porsche guys were putting coke cans up their exhausts in an effort to muffle.

Would rather fork out now and get an exhaust that flows well, is light, and not noisy, than pay in $ and frustration down the line. Looks to be +4db at idle and +1.6db at "proximity noise" whatever that is ... hopefully that means 75db on an angle at blah blah meters!

[Ants]

Those are pretty stiff rules IMO.

Although I understand the need for noise restrictions, it is afterall a bloody racetrack for gods sake!

I would understand that better if it was on a street circuit.

Anyways, I do hope that the exhaust satisfies those requirements you mentioned.

Hah, hah, re coke cans in the exhaust for the Porsches...did it work?

Put some pics up of the custom Midori zorst when you get it.

Edited April 18, 2013 by Ants

[paulR32gtr]

Anyways, I do hope that the exhaust satisfies those requirements you mentioned.

Yeah same. I reckon it will with the oval rear muffler and extra center muffler, rather than single canon like the Tomei. Similar design to the one on my 34 which never has an issue. I will see how it is, if it seems a bit loud I will get an extra small muffler made up to drop in place of the test pipe in the event of an issue.

Hah, hah, re coke cans in the exhaust for the Porsches...did it work?

Not sure ... didn't like their chances though!

Put some pics up of the custom Midori zorst when you get it.

Will definitely do - they are quoting about 2 weeks.

[nk7]

Berry berry nice work mate. No I meant Incredible work. Although I had to shut the blinds and lock the door to view some of your gtr porn a few pages back but other than that good read!

I wanted to ask - where did you get the speedflow fittings and hose from?

And I didn't realise you could use dry ice to get rid of all that black tar crap in the boot etc...you learn something new everyday. Did you also replace the cable from positive battery post/bracket to the fusebox?

Nik

[paulR32gtr]

Thanks Nik!

Fittings and hose are all from Motorsport Connections - http://www.mscn.com.au, nice guys and have good stock.

Yeah the dry ice works well - have done a couple of cars now and it would be a lot harder without it.

I haven't replaced the positive battery cable, just changed the terminal on the end so it can bolt to the underside of the jumper post. The battery cable from the battery in the rear bolts to the same spot, as does the extra red connector from the factory terminal shown up above heat shrinked sitting behind the fuse box.

I have replaced the firewall pass through being used in the pics for the jumper post that arrived below. Still need to isolate that area a bit more to avoid shorts when jumping the car.

[Deano 1]

Hey mate, where did u get that terminal from?

[nk7]

Seems like Motorsport Connections have got a repeat customer eh Paul...

Was gonna ask where the oil cooler was going but I remembered you have an inbuilt oil cooler.

[paulR32gtr]

Hey mate, where did u get that terminal from?

Just eBay from the USA - it's imperial but not hard to get terminals that fit.

Seems like Motorsport Connections have got a repeat customer eh Paul...

Was gonna ask where the oil cooler was going but I remembered you have an inbuilt oil cooler.

Yup a regular there for a couple of weeks! There is always one thing you forget when making up stuff like that.

[paulR32gtr]

Picked up my catch can / windscreen washer combo today from Racepace and all the gear to fit it. Also picked up final couple of bits I was missing being a lower intercooler mount and the intake pipe for the rear turbo. So the intake / intercooler / BOV's etc is all bolted in and complete minus the AFM's and airbox really which is hiding somewhere at this point.

Exhaust will be here tomorrow or Friday. Aiming to do some electrical testing and general checking over on Sunday and bolt the exhaust on. Getting close to start up!

All plumbed in.