Jump to content
SAU Community

Group A Thread

N1GTR

By N1GTR,
in Motorsport Discussion & Builds

 Share

Recommended Posts

  • Replies 496
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Jetwreck
Jetwreck

for shits and giggles

MattR
MattR

how bout this one for 60K; http://www.ecurieinvestments.com.au/bathurst-12-hr-nissan-r32-gtr-godzilla seems like a bargain to me

Roy
Roy

R32_Bigboy was up there and his article has now been posted on Speedhunters http://www.speedhunters.com/2013/09/muscle-car-masters-australian-historic-racing/

Posted Images

Duncan Grand Master

Duncan

Posted
Posted
thanks mate.

I just wanted something better than the pissy little one i found.

If i ever get to the stage where i have more money than sense, i would love to build a complete replica in that colour scheme.

haha funny you should say that, I think this was the best of the 3 colour schemes. unfortunately my car is at least 6 months from the track still :blush:

tn_img_1814_sm.gif

NISMO Grand Master

NISMO

Posted
Posted

Drunken I think he was referring to teh post before your's and the pic of Skaifes car.

As for your car - you suck! Not too much though, cause i prefer the first release of that scheme with the white on the bottom, not blue

  • 3 weeks later...
Jetwreck Grand Master

Jetwreck

Posted
Posted
That is awesome Jet! Are you heading up for it? I only live 15 minutes away and will NOT be missing this! :P

Yup will be up there with Dad in the R31......about 15-20 Groups A/C's running in our class......thats including Terry Ashwood's GPA Winfield R32

see you there I guess.

Marlin Grand Master

Marlin

Posted
Posted
Yup will be up there with Dad in the R31......about 15-20 Groups A/C's running in our class......thats including Terry Ashwood's GPA Winfield R32

see you there I guess.

You will indeed! So, ummmm, I know my way around Lakeside pretty well, I guess I should expect a phone call to steer the old girl? lolol

And yes Chris, I'm not much of a photographer, but I'll take a good camera out :P

  • 2 months later...
dazmo Proficient

dazmo

Posted
Posted

Marko I will post some pics of the R32 GRP A engine tomorrow when I have acces to a scanner as I have some nismo books that have some decent pictures in them and also have a few pics that i took while at the nismo omory factory last time I was there these are on my other computer so will post them as well. The jap spec group A GTR's ran a wet sump with external oil pump and the later JGTC cars ran a dry sump. I am not 100% but am pretty sure that the Group A spec cars where unable to run a full dry sump due to class regulations.

dazmo Proficient

dazmo

Posted
Posted

Hi Marko R1 these pics are of the R32 GRP A engine from the taisan/stp car these pics do not show the pump mounted to the block but will give a bit of a better idea of the sort of sump mods that were carried out. These jap spec GRP A engines definatly ran an external pump. I will post up the pics from one of my Nismo books that show the pump mounted tomorrow as i forgot to take the book to work today to scan the pics. From the R33 onwards they ran a full dry sump as these cars were obviously built to JGTC spec and were not subject to as many restrictions as the GRP A spec cars.

post-15992-1257321079_thumb.jpg

post-15992-1257321100_thumb.jpg

Marko R1 Grand Master

Marko R1

Posted
Posted

thanks dazmo - well that is an interesting sump extension, looks like they have used another factory cast, inverted the bottom 1/2 & welded to it, obviously functional but not pretty to look at. it doesnt look like it would have the same oil capacity as my rips sump. on the street, the 1st pot hole would smash that sump but that dont matter as its purpose built for the track (reminds me of my old gtr with the trust sump extension kit). this is why i like my rips sump as it does not hang any lower than the factory sump (perfect for those road undulations)...

i posted the same question on the gtr uk website & have this feedback:

The Gibson cars were wet sumped.

Dry sumping was not allowed in GP-A (At least not in Aussie)

They ran a extended sump with baffles (Prob very similar to what R.I.P.S build), They ran a stock style oil pump....Some people think they had an external pump that came off the water pump pulley, but that was a mechanical fuel pump.

so the final conclusion is that the group a gtr that was raced in aust had a wet sump with conventional oil pump :)

this makes those wet sump owners such as myself quite content!

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • AdiR34
      Fender flare widths across front/back of car

      By AdiR34 · Posted

      Hey y'all! I'm curious about how y'all go about widebodying your cars. I noticed that when running a square setup, my front wheels are a bit more tucked in than my rear wheels. Not by much, maybe 5-10mm. This leads me to wonder - when I widebody, should I use narrower front flares and wider rear flares? I found a set of 40mm rear flares that I really like, and was thinking of pairing them with some 18mm front flares, but I don't want the car to look strange. How have others done this? Note, I'm in a sedan. Thanks!
    • GTSBoy
      Stagea Front CV Axle Question

      By GTSBoy · Posted

      And if it was anything other than an auto tranny part, it might be a problem. But seeing as all auto trannies belong in the recycling bin, it's fine.
    • GTSBoy
      Stock rb25det neo questions

      By GTSBoy · Posted

      I have an R32 Fenix rad. It is good.
    • dbm7
      Stock rb25det neo questions

      By dbm7 · Posted

      All the schemas I can see, indicate your typical setup of ATF 'cooler' (read: heat exchanger) in the bottom radiator tank..ie; https://nissan.epc-data.com/stagea/wgnc34/5413-rb25det/engine/214/ ...but I can prattle on a bit here. These trannies have a thermistor in the sump ~ the TCU reads this and 1. bumps the line pressure up when the ATF is 'cold' and 2. prevents the TC lockup clutch from operating, until the ATF comes up to minimum operating temp (keeps the ATF 'churning' through the TC so it heats up quicker) -- trigger point is around 55C. In these conditions, the engine coolant temperature rises faster than the ATF temperature, and also helps heat the ATF up, which is why it's best to think of the in radiator tank setup as a heat exchanger ; the heat can flow in both directions... ...with these trannies, the 'hot' ATF comes out the front banjo bolt, flows through the cooler/heat exchanger, and returns to the box  via the rear banjo bolt. This gets a mention, due to the wildly different opinions wrt running auto trans fluid coolers ~ do you bypass the in radiator tank altogether, or put the cooler inline with the in radiator tank system...and then, do you put the additional cooler before of after the in radiator tank system?... ....fact is the nominal engine operating temp (roughly 75C), happens to be the ideal temperature for the ATF used in these trannies as well (no surprises there), so for the in radiator tank system to actually 'cool' the ATF, the ATF temp has to be hotter than that...lets say 100C -- you've got 25C of 'excess' heat, (slowly) pumping into the 75C coolant. This part of the equation changes drastically, when you've got 100C ATF flowing through an air cooled radiator ; you can move a lot more excess heat, faster ~ it is possible to cool the ATF 'too much' as it were...(climate matters a lot)... ...in an 'ideal' setup, what you're really trying to control here, is flash heating of the ATF, primarily produced by the TC interface. In a perfect world, wrt auto trans oil cooling, you want a dedicated trans cooler with builtin thermostatic valving - they exist. These should be run inline and before the in radiator tank system ~ when 'cold' the valving bypasses the fin stack, allowing the ATF to flow direct to the in radiator tank heat exchanger, so it works 'as intended' with helping heat the ATF up. When 'hot' (iirc it was 50C threshold), the valving shuts forcing the ATF through the cooler fin stack, and onto the in radiator tank heat exchanger...and you sort of think of it as a 'thermal conditioner' of sorts...ie; if you did cool your ATF down to 65C, the coolant will add a little heat, otherwise it works as intended... ...the 'hot' ATF coming from the front bango bolt, is instantiated from the TC when in use, so all/any flash heated oil, flows to the fluid-to-air cooler first, and because of the greater heat differential, you can get rid of this heat fast. Just how big (BTU/h) this cooler needs to be to effectively dissipate this TC flash heat, is the charm...too many variables to discuss here, but I just wanted to point out the nitty-gritty of automatic trans fluid coolers ~ they're a different beastie to what most ppl think of when considering an 'oil cooler'... /3.5cents   
    • jez NF
      The Evolution Of "night Fury"

      By jez NF · Posted

      Been a busy but productive day. Axle and hubs acquired. All fitted up after a bit of modifying. Need to sort out wider mudguards and running light reflector covers but other than that the trailer is gooood to go !!
×
×
  • Create New...