kwickr33

Your stock injectors can produce max of 230rwkws. with the current setup you have. all you need is a high flowed turbo plus few hours of dyno tune.

You should be able to run 10psi with stock ECU fine on 98 fuel. Turn up the boost when you have other supporting mods.

Check the RB25 dyno sheet section. You will find pretty much all internal gated turbos on RB25det spikes up midrange then drops off red line. Plus every thing think the boost drop is due to their boost controller which is really the nature of their internal gating.

Well can't believe I read the whole thread. There are many options around. Already a whole bunch of people now making a bolton Turbo for RB25 engines with what ever A/Rs you want with what ever CHRA and now Garrett has joint the team. There is nothing new. There still is one problem that is boost control. Looks likes no one has ever managed to get a flat boost curve with internally gated turbo. Regardless if that is Garrett IW, AVO, HyperGear, GCG or who ever. The CHRA is not going to perform at its true potential unless it can hold 20psi to red line. Till then all you only get around 270rwkws unless you spent that extra grand for a decent external gate, manifold and exhaust setup. (Till cops find out, and start all over again lol). So till some one can make a bolton turbine housing with a wastegate that can actually hold boost, there really isn't much point going any thing beyond a 3071 size CHRA.

No. If the piston doesn't seal perfectly you will get hug amount lag. It will be constantly leaking manifold pressure.

You will never get 400rwkws with a GT3582 on a stock Rb25det on 98 fuel. maybe E85 with 500Hp Shot Nos if engine doesn't fly in pieces. Edit: Never mind. Its probably Nismoid's typo.

The only way to bring up response is either by reducing the sizes of the current wheels, or Reduce the size of current housings. Both of them will reduce your current power flow. Or you can run adjustable came gears which can bring up about 2~300RPMs in response. Also I noticed KKR 480 is actually running off a split pulse turbine housing. If you run a single pulse turbine housing it should smooth the power curve a little towards midrange.

From KKR's website it says its a .69 Turbine. But who knows. Still, 400rwhp on a fully stock Rb25 at 18psi is not bad. The size of the turbo is just too big for fast response. Sale that and get them to make you a GT3071 equivalent or high flow your stock turbo.

Its a pretty generous offer. I think you should take it. Plus you can connect a 3inch pipe straight into the ATR43's turbine housing, which will flow heaps better then that little 2.5 inch pipe.

cold start the engine, hold rev at 2000RPM. If steam seals are gone you will notice some blue smoke. once the car warms up the smoke goes away.

Have a read at HyperGear's turbo high flow thread. From photos it appears that they use sleeve or roller GT2860RS - 739548 - 5 turbo core in stock turbine and comp housings, Price is pretty decent. Not sure if they have stock R32's N1 wheels. You can always ring them and find out. Other wise check your local MTQs branches. Ebay is really the last resort you want to use.

Just out of interest. Did you actually made your own pistons?

FPV is obviously a lot better car. Makes power lot easier. and heaps cheaper in parts.

Both Hypergear and GCG are Garrett distributors, they all make their own little things. Give both of them a ring and see who offers the best setup with the best prices.

I'm currently running the same turbo. its pretty easy, just sleeve a 2.5 inch pipe into factory intake pipe, and clamp it over with a 3inch rubber hose to turbo's intake.

^^^^^ Is this offer still available? I'll pick it up this weekend. Mine engine is ready from rebuild.

The stock lines are metal. You can just cut them and replace it with good quality water hoses. and they are lot easier to install.

www.hypergear.com.au They charge $880. seen good results from them as well.

Helped a mate to fit one of their manifold. The bolt pattern to the engine head is wrong. had to slot 2x bolt wholes 5mms cross to make it fit. The manifold to engine flange is also bent which had to be machined. Seller is very unhelpful, he's fully aware of those problems and did not mention it on his ad. So's Flyns, same shit. The only thing that is good in this kit is the turbo, that is assume its not a copied Garrett.

For 272rwkws I think this is the most responsive result I've seen. even compare to most of the high flow results. Looking pretty good, keen to see what it does on a healthier RB25 engine.

How many KMs has the engine done? how much for the engine?

Nice. do you have Bosskit to suit a R33?

I saw this dyno sheet before. This is comparing to a Hypergear's highflowed R33 turbo not a OP6 R34 turbo. So the OP6 rear housing would have picked up better power and torque and the R33 turbo is better in response.

This turbo is made for a truck. Note the split palse turbine, I delt the internal gate is going to work either. for $1000 I think your best bet is one of HyperGear's TR43i internal gated turbo.

Just came across this force flow superchargers. US made and seen some youtube comparison with other China knock offs. any one actually used it? retailed around from $500~ $1000 each http://www.force-flow.com/