Jump to content
SAU Community

Recommended Posts

  • Replies 316
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

Thats an awsome results dude, can tell how happy you would be :)

Yes jazza08, I've had the GCG Hiflow for 12 months and was always around the 220-240kw@tw. I always wanted to be at 260-280kw because reading different owners threads and comparing mods, I felt that thats where most guys were aiming. Now with the VG30 rear end 270kw is a breeze and i'm extremely happy with that for a few hundred bucks outlay. If I had have known about the VG30 rear end 12 months ago I would have bought that straight away.

Ian

Very good.  Have you got a pic of the turbo before you put it on.  I'm interested to see the physical size of the exhaust housing.

This fits with my theory that an R34 turbo highflowed should make more than an R33 one done the same way.  Compressor sides are the same all round but bigger exhaust housing picks up serious gains.

Hi Bob, I'll try and download the pics now mate

So the comp. cover is still the std. rb25det turbo?

Also, having trouble understanding that dyno graph :Oops: . How could a turbo with a bigger exhaust cover be making more power throughout the whole range? I would have thought the std hiflow would have been making more power a little earlier (@ low rpm), than the VG30 hiflow combo.

Hi guys, I had a dissapointing day yesterday at Oran Park. I retired the car after only 9 laps. The car was unbelievable. Heaps of power everywhere, more than i was used to and it was the first time I have "booted" the thing since it was installed. I have never raced on the OP short circuit before and I needed more time to work it out. I was getting faster and faster the more familiar i was becoming with the newfound power and the track. Seriously, the boost comes on much much stronger than the normal GCG Hiflow. I ran a best time of 50.68.00. I honestly believe given a few more laps i could have gotten down to 48's. Even the 50.68 sec lap I was sidways comming onto the straight and I would have lost time correcting it.Biggest lesson I learnt is to ALWAYS reinstall the manifold heat shield and the turbo heat shield. I ran without and melted some plumbing. Not melted right through but rubber blistering nearest the stock manifold and even a silicon joiner melting where it was in contact with a SS clamp. DUMB MISTAKE. I'm going to replace some pipes with silicon and reinstall the heat shields.

Ian

H E AT S H I E L D S A R E R E A L L Y G O O D ;)

Winton_Trouble.jpg

462SAD_DAY.jpeg

I burnt/split the heater hose on the firewall, so the glycol sprayed over the hot turbo and flashed off. There was far more smoke then fire, but by the time i stripped/cleaned the car to observe the damage it was clear that there had been a lot of heat and enough of a fire to warrant a new loom.:P

I never thought of that issue before. I guess that is why Nissan designed them in the first place. You never stop learning when you start racing. I stuck my hand in down by that area after 3 laps and jessusss it was hot. It's a neverending story, need to get the lip on the rear guards rolled to as the tyres are just touching, more money.

Ian

More money :)...thats why im callin git quits for a year or two. Concentrate on work and getting some money behind me and enjoy some travel. Fingers crossed i might pick up a Sierra while working / travelling:)

Its amazxign once you start racing a car, i realised two thing, how good a job Nissan did, and secondly how so many aftermarket parts only solve half the problem:(

More money :)...thats why im callin git quits for a year or two.  Concentrate on work and getting some money behind me and enjoy some travel.  Fingers crossed i might pick up a Sierra while working / travelling:)

Its amazxign once you start racing a car, i realised two thing, how good a job Nissan did, and secondly how so many aftermarket parts only solve half the problem:(

I've said it before...The Skyline...We rock up to anywhere, 3 people in the car, 4 wheels and tyres in the car, 20litre drum of fuel with Toluene mixed, tool box and pump and god knows. Having driven for 4 hours to get there, the car is absolutely loaded to the gunnels. Air Conditioner going Stereo going change the tyres when were there. Opposition turn up with car on trailer, gutted with engines and stuff from all sorts of different origin, and there are only a few cars that are quicker on the track. We always finish in the top 10 overall and I just think that says something for Nissan.....and the Skyline.

Ian

Okay so back on topic.

Hows the car at low revs know? Making any less power?

Do you have a graph from like 2000 rpm upwards?

Can you retain the existing dump pipe?

Dying to find one.

BASS OUT

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

    • I hope it's actually possible. This is a write off in insurance world.
    • Yup. 2-way with shallow ramp angles. Still works.
    • That was the first session so not a lot to take from the day. It was low 20s ambient and the coolant had got to 110 (and obviously had some pressure!) so that still needs to be addressed. I haven't downloaded the data yet but will. I had refilled the auto trans with Redline DT6 because it claimed the best viscosity I could find at 100o. It wasn't really long enough to get a good feel for that; while the trans got to 100o in the session it still wasn't shifting crisply as I hoped. I think I'll try a few more sessions before judging. No steering motor overheat but I'd hope not in only 1 session! But finally the suspension; it was night and day over the standard stuff and the car was a couple of seconds quicker on the same crappy tyres, which is a huge difference. I'll stick with that and get some sway bars and a mechanical diff sorted too and see how that all goes together
    • I guess it’s partially a compromise of how my car is used, wanting to be able to switch from drift to grip with track side on-car adjustment. Also partially with the way the knuckles are set there is more static camber but less dynamic camber gain. 
    • OK, so update from the track day on Friday It was a classic "an unfortunate series of events'. There were a few cars around and when i checked my mirror coming out of the fish hook I notice some smoke from the rear of mine. Looked again and it was getting much worse, I figured I'd blown a turbo or something to got off it and pulled off the racing line. However.... since it is a left hairpin into a right kink, I was on the inside of the next corner. There was a car passing me on the left and a big drop off over the ripple strip on the right......and someone had knocked the witch's hat that was on the apex about 1m onto the track. So, between those 3, I decided to mow down the cone and not damage my car/the other car. Right choice, but surprising result.  The car decided the cone was a small pedestrian so it blew the rear bonnet hinges up to protect their head in the upcoming person to car impact....I didn't see that coming and like an airbag deployment it happened super fast. Straight into the pits from there, everything was driving fine but it became clear it was a coolant leak not smoke, it was billowing up onto the windscreen. Onto the trailer and home. I'll do a separate thread about the repair (once I work out what it is ), but the immediate problem was the bonnet wouldn't open because the front was pinched onto the front bar and would not release. Ultimately we unbolted the hinge from the bonnet, pulled it back a little and it released from the front OK. "There's your problem", the top radiator hose had popped off at the radiator.
×
×
  • Create New...