Jump to content
SAU Community

Recommended Posts

maybe the way the power delivery/rev limit? (engine design)

there must be a reason 2jzgte never been used in JGTC while rb26dett GTR win more than any other engine equiped car.

True, the RB is more of a rev-happy race engine, the 2JZ is a hi-po street engine, for a street driven car extra displacement is nice (hence the run on RB30 conv. atm).
  • Replies 6k
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

I've picked my self up a VG30DET BB turbo with plans to get it highflowed by gcg later on down the track. Anything over 250rwkw I'd be happy with. :(

For now I will be bolting it on with an adj. FPR (maybe injectors depends on $$) to see what she gets.

I'm expecting around 210rwkw peak some where around 5500rpm. ;)

Unfortunately I can't spend money on the highflow at the moment as I need to get the suspension and diff sorted.

The subframe bushes are nackered as is the diff, it now some times breaks out in to a single spinner when jumping on the gas in second, if it doesn't do that it breaks out in to a nasty axle tramp due to the stuffed subframe bushes. :(

do you know how much one is looking at to get a stock Skyline turbo high-flowed Joel?

My Neo turbo also has the plastic impeller - I wonder what the cost would be to change it to a steel one?

It comes down to you get what you pay for. As usual. :(

A cheap bush style highflow is around the 1k mark.

A BB core highflow is always up around 2k. GCG charge around $1900.

GCG are fairly well proven to highflow a turbo that is reliable and doesn't pop, I'll spend my money with them.

I could do the GT30/35 external gate thing but honestly big gates hanging out the engine bay really make me paranoid.

Sambo, Its making 175rwkw at 4400rpm then peaks up to 176rwkw (wow) by 4800rpm then drops to 176rwkw by 4950rpm then tails off to ~130rwkw or something by 6000rpm.

The stock rb20det turbo is waaay to small for the rb30.

It peaks to 12psi as soon as boost is made then quickly tails off to 9psi, this is on the stock actuator pressure. So the peak figure is made on 9psi, not too bad for a little rb20det turbo. ;)

The Rb20DET needed 15psi to make 164rwkw so it goes to show how much better the rb25 heads flow. :(

Guest
This topic is now closed to further replies.



  • Similar Content

  • Latest Posts

    • I had absolutely no symptoms whatsoever that anything was wrong.... I'm very happy it was all spotto'd and re-bled and re-torqued and aligned though. Will be picking it up tomorrow and undoubtedly be like "Oh, that clunk is gone" "Oh, the car really wants to drive straight" "Oh, that pedal feels better" "Oh, it feels like I've gained 25hp" "Oh, the handbrake works now" It should have been a sign that the new Project Mu shoes had 3mm of pad depth on them out of the box, and the OEM ones from 25 years ago that we took out also had 3mm of pad depth, implying the issue was not, and never was the shoes, but we put that down to it not being adjusted correctly. It wasn't, but it wasn't even adjustable at all given one side was boned and the T Junction of the cables was on a 45 degree angle, the non-working side being the one on the massive angle. Obviously when I had adjusted it and reset it and re-tensioned it I had either got it stuck or something along those lines. Oh well. Live and learn and absolutely could have been catastrophically worse so I'm rationalizing it as a win, kinda. I also got the chance to measure the distance between rear rim and the suspension arm/shocks and found a 30mm rubber block only just doesn't fit there. Which is great to know before ordering wheels, when I assumed 30mm was easy. The man with the Porsche adapters has rims that use 23.9mm of that space, so it's safe to assume I have between 23.9 and 29.9mm of space there to play with on the inside. The wheels looked pretty stupidly pokey with the 20mm spacers on the rear, only for me to find that the studs come out another 12mm and the wheel doesn't actually sit flush with the hub because you're supposed to cut your original studs. The wheels do have cutouts that kinda accomodate it, but not fully. So my 20mm spacer was anywhere between 25mm and 35mm. ~25mm and send it will determine on where the wheels sit with the spacers on. When I put the pads in for the track day I will mess around with spacers (with wheels that do not clear studs properly when mounted to spacers) and do more math, for the last time, for the 7th time.
    • Lucky pick up Best to find these things before something horrible happened to the yoke flange thingies I would hate to think what would happen if it dropped the tailshaft  Hopefully the holes are not flogged out in the yokes and it was just the bolts that got munted  As for the hand brake.....ouch, look like the disc got rather hot, and I assume smokey, I recall when I had a front caliper seize on the Commodore, there was lots of smoke and the disc was glowing cherry red when I was able to eventually stop and have a look, and stopping a big heavy car, going down a big hill with some rather high RPM down shifts and some hand brake action is something that makes you think hard about life
    • One of the things that never seemed right was the handbrake. Put in some nice new Project Mu shoes. We figured the rears were out, so why not. We're right there. My handbrake never worked well anyway. Well, this is them, 15km later. 67fdcf94-9763-4522-97a4-8f04b2ad0826.mp4 Keen eyes would note the difference in this picture too:   And this picture: Also, this was my Tailshaft bolts: 4ad3c7dd-51d0-4577-8e72-ba8bc82f6e87.mp4 It turns out my suspicions that one side of the handbrake cable was stretched all along were pretty accurate, as was my intuition that I didn't want to drop the tailshaft to swap them on jack stands and wasn't entirely sure about bolt torque. I have since bought the handbrake cables which have gone in. I'm very glad that I went to my mechanic friend who owns an alignment machine to get an alignment before the track day, because his eyes spotted these various levels of "WHAT THE f**k IS GOING ON HERE?". Turns out the alignment wasn't that bad, considering we changed the adjustable castor arms out for un-adjustable castor arms, and messed with the heights. Car drove pretty good with one side of the handbrake stuck on, unbleedable rear brakes, alignment screwy, and the tailshaft about to go flying and generally being a death trap waiting to happen! (I did have covid) (I maintain I adjusted the handbrake correctly, but movement caused shennanigans and/or I dislodged the spring on the problem side somewhat, or god knows what). G R E G G E D
    • Very interesting, im not sure how all those complications fit in to running a haltech instead of a stock ecu but I'm starting to think I'm a bit out of my league.
    • I just put 2 and 2 together. This is a Neo converted R32. The Neo ECU (in concert with the R34's AC controller) runs the AC quite differently to how the R32 ECU and AC controller do it. If you just drop it all in, it won't work. There is some tricky wiring required, including changing to the pressure switch that the Neo controllers want to see. I don't know what it is, because mine was done by a guru. It was a year or so after I did that transplant before he worked out what needed to be done.
×
×
  • Create New...