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Everything posted by Harey
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Skyline R33 Gts-t Hks Gt2835 Pro S Vs Sti
Harey replied to Turbz RB-25's topic in Engines & Forced Induction
It would be interesting to see what mph they ran, cause my guess is the mph wouldnt be that impressive, but the 60' would be. -
Thanks Tao for the detailed response. This is great info. You mentioned at the start that the boost drop issues were only with a 0.63 housing and yet the tested example you use is the 290rwkw hiflow which I understand runs the 0.82 housing?? If there are no boost drop issues with the 0.82 housing why would you still use the wastegate controller with them?
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For a start we are talking about a PU hi flow which has the standard front but an aftermarket 0.82 rear. So not a 0.63. He can get it to hold 20+psi to redline with his wastegate controller!! This means it is possible, its just the actuator is not strong enough to hold it on its own. By limiting the movement of the actuator arm, it does hold 20+psi to redline. If it wasnt possible, no problem, its just I havent seen a reason from Hypergear and it seems they are designing there own modifications instead of sticking with the standard operation of an internally wastegated turbo.
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Exactly right! This is my point as well. It looks very dodge. A stronger actuator would fix everything! And be the proper way of doing it. My previous car I ran straight off a 17psi actuator. It controlled boost very well and the cops couldnt see any form of boost control. Yes I could increase how hard the boost hit with an aftermarket boost controller but it was already very hard and it wasnt worth it to me for the extra defect risk.
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The thing is Hypergear use an extra fitting called a 'wastegate controller' which limits the wastegate from opening past a certain point. And this does fix the issue, so it is a hot side issue. Tao explained it as the actuator spring cannot handle the force involved. I dont understand why a stronger spring cant be fitted to compensate.
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Ok done some more reading and the larger flapper valve will only help with boost creep issues. Whereas we are talking about boost drop issues.
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Skyline R33 Gts-t Hks Gt2835 Pro S Vs Sti
Harey replied to Turbz RB-25's topic in Engines & Forced Induction
Just had a quick look on the STI forums and they look to make roughly similar power to a skyline, mod for mod. The stock turbo maxxes out around 300-320whp, so about the same, maybe a tad more then a GTS-T. So really, the only advantage is the all wheel drive and the better launch. -
Skyline R33 Gts-t Hks Gt2835 Pro S Vs Sti
Harey replied to Turbz RB-25's topic in Engines & Forced Induction
Do people think STIs are that fast?? I used to drive a VX SS and found myself in the middle of an STI cruise. Stock STI vs Stock VX SS was identical. Yup the modded ones beat me. I think we need a list of STI mods vs mph on the quarter. -
Skyline R33 Gts-t Hks Gt2835 Pro S Vs Sti
Harey replied to Turbz RB-25's topic in Engines & Forced Induction
I will take the gimmick too!! -
Skyline R33 Gts-t Hks Gt2835 Pro S Vs Sti
Harey replied to Turbz RB-25's topic in Engines & Forced Induction
Wow very nice! I think you just may have the lightly modded STI HAHAHAHAHAHAHAHA!!! -
Get a 0.82 housing. "Feels more responsive down low but doesn't feel like it hits as hard." This is exactly right, if a turbo is more responsive and has more power/torque down low it wont feel like it hits as hard. Hitting hard is a sharp change in torque. It will be a lot faster with more low down grunt so it just depends on what you prefer.
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Hi Tao, What is the advantage of doing this? Will it help run 18-20psi flat without your wastegate controller?
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You need to disable the blow off valve so that it cant release the air. You dont need any specific type of pipe, but a metal pipe with a pod will give the loudest dose. Theres a huge thread on a vl forum about the different shaped intake pipes and what type of noise they make BAHAHAHAHAHA! Unfortunately though I dont know how to disable the blow off valve as I am new to skylines.
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So you are using the highest tension spring in the actuator available? I have heard of actuator springs up to 25psi, surely there is something stiffer out there that can be jammed into the small can actuator.
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Talk to GCG they will definitely be able to supply an appropriate wastegate actuator.
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Yeah right, go to all the trouble of a high flow turbo to keep stock appearance and for simplicity, and then throw an external gate on
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Skyline R33 Gts-t Hks Gt2835 Pro S Vs Sti
Harey replied to Turbz RB-25's topic in Engines & Forced Induction
With 190rwkw in a GTS-T I am sure you could sort out a good launch that would not get any wheelspin. In that case you would do quite well. This is the 190rwkw vs 190rwkw I am talking about. -
Surely an 18psi wastegate actuator is the proper way to hold boost to redline as well (assuming it must be internally gated). The other way sounds like a band aid to me.
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Recommend A Place In Melbourne To Make Up Intake Pipe R34 Gtt
Harey replied to Harey's topic in Engines & Forced Induction
Hahahah yeah i used to do that crap. I am happy to travel if its something complex, but we are just talking about an intake pipe. -
Recommend A Place In Melbourne To Make Up Intake Pipe R34 Gtt
Harey replied to Harey's topic in Engines & Forced Induction
Very interested, post up a pic! -
Skyline R33 Gts-t Hks Gt2835 Pro S Vs Sti
Harey replied to Turbz RB-25's topic in Engines & Forced Induction
11s on a lightly modded STI what a crock! Mate you will absolutely smash him with your 270rwkw, tell him anyplace anytime. To be honest I would be more worried about mph not the 1/4 mile time. 1/4 mile times vary soo much depending on your 60'. If thats your thing then fine. But a car with perfect suspension and an excellent launch with moderate power wont be very exciting to drive. Go the high power car with reasonable launch and lots of fun hehe -
Wow that sounds like a major pain in the arse. Surely there is a simpler way. Is the factory rubber pipe the right size? I have read someone with 300rwkw did this: - Intake pipe strengthened with internal steel pipe to stop sucking close Is this an option? As long as the intake pipe is no more restrictive than the MAF sensor you should not loose power.
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Recommend A Place In Melbourne To Make Up Intake Pipe R34 Gtt
Harey replied to Harey's topic in Engines & Forced Induction
Thanks for the tip, anything a bit more north (Doncaster direction) would be a lot easier if anyone knows somewhere.