whatsisname

Just went from R888 to A050 and although I've not done many klms on them, and nothing overly spirited, they've impressed so far. Based on IPRA results the A050 is a least 1 to 2 seconds a lap quicker than the superseded A048.

Thank you to everyone within this thread that answered my questions and provided info, and ultimately helped me select my new wheels (width and offset) Here's the end result (minus big brake kit awaiting fitment) Skyline model = R33 GTS25t Wheels/Tyres = Advan RZ-DF & Yokohama A050 Wheel diameter = 18" Wheel width = 9" & 10" Wheel offset = +35 Tyre size = 235/40/18 & 265/35/18 Modifications to fit = Rear guards lipped.

Perhaps not a daily driver but I know someone that drives to work on ET Streets and has done over a period of years, in fact come to think of it I know a guy who's other half used to take the kids from A-B on them (with 450kW at the rears).

They fit but the camber is counter productive for drag strip duties (-1.5') but that's due to incorrect offset more than anything else. A 18x9 +38-42 would most likely rectify the issue. But that combo is counter productive to a decent looking street car - I tried to cover both bases but ended up compromising both and achieving sub par results. This time I've gone for two sets of rears.

It all looks very promising! You've managed to get it to sit neutral with a 10" 265 combo', which is precisely what I'm aiming for. I'll have to drop down to a narrower 9" to run my 265 40 18 MT ET Street 2 to achieve neutral dynamic but that's as easy as ordering a 2nd set of rears and swapping and aligning as required depending on strip or street use . Thanks again.

I switched to running nothing but comp tyres on my 33 GTS over 10yrs ago - started with RE540S, then NT555R, MT ET Street 1, R888, ET Street 2 and now A050. Obviously the drag radials are only used on the rear, with circuit tyres on the front. In my decade of experience, I've found drag radials provide less grip on the street as they need more heat than a circuit tyre to produce their best. Unless you're prepared to do a burnout every 2nd or 3rd intersection you're better off sticking with a circuit based tyre for a 'monthly driver' (weekend/project car).

You sure about that...?

I've got 265 40 18 Mickey Thompson ET Street Radial 2 on the rear of my 33 GTS on a 18x9 +32

Yes good point, it would help if I clarify which model. The car is a '94 33 GTS25t (see avatar picture - engine details listed in sig), same year model as your car. Thanks for your input, Mark. I see you've listed (adjustable) rear camber arms in your mod list. How much negative camber is your 33 running on the rear? And how low does it sit? Do have any photos of the car with the current set-up you don't mind sharing? I'm currently running Lenso D1R in 18x8.5 +35 235/40/18 RT615 & 18x9 +32 265/35/18 R888 - and 265/40/18 Mickey Thompson ET Street Radial 2 for the odd drag strip outing. Front offset isn't great and rear is useless for drags as it needs too much neg to stop the fat MT ETs from rubber under WOT rear squat.

After reading through about 60% of the thread and using a few online calculators I'm at the point of asking within the thread for extra input. I'm keen on a set of Advan RZ-DF and would prefer 18x8.5 +31 235/40/18 A050 and 18x10 +35 2X5/35/18 (X = as wide as I can fit without scrubbing issues) I have Ksport 356 8 pot / 356 4 pot brakes to consider. The rear guards are lipped but not flared - prefer to keep it that way. Would love to opt for more offset on the rear but Yokohama / Advan don't give that option. Am I in the ball park with the above combo'?

Price drop: $500 ono

Easy done, I'll be using the same dyno I've used for many years so I can load up my old file and overlay with the new one. Shaun (workshop and dyno owner) probably still has dyno runs from the previous turbo too - very old school Garrett T3/T04E combo'.

The FP HTA GT3586R will be the fourth turbo I've tried since I purchased the car (99% stock) in 1999 - it was less than 5yrs old at the time. The aftermarket turbocharger industry has changed a touch over the years. I've watched prices drop by more than 1/2, available options more than double, and response and peak power rise to levels once unheard of! I won a dyno day at the then Croydon Autosports a few months after I bought my 33, just over 200kW at the rears was enough to pip about 20 other competitors. For those that remember him/his car Mario bought the once famous 'GTR700' from the same yard some months after I bought my 33. They wanted $75k for that R33 GT-R.... it was 100% standard.

Realistically, a month or more... the new engine build isn't finished yet. Dump pipe has to be fabricated, a bunch of ceramic coating etc. It doesn't help that I like everything to look nice as well, so more polishing and ceramic coating etc. Then I have to bed the rings in, the list goes on.

Me too Mick, me too! I am itching to see how the GT3586R performs, especially with the 0.85 rear. I don't know of anyone else in Australia using the same combo' as yet.

Price drop: $550 ono

G'day Darren. I caught up with Rob last week. Had a brief chat about cars and how he and you were going. I sure hope so mate. A solid combo once everything is sorted will keep me happy for a while.

I'm looking forward to how it turns out too. The old set up consisted of a built 25 (CPs, 8.4:1 - pre E85 era) running a Turbonetics T62-1/T3 .63 Stage 3 on a ETM manifold and Pro-gate 48. On about 22-23psi (top end) it produced the numbers in my sig'.

Lith, thanks for your input mate, exactly the kind of info I was looking for! I'm not 100% commited to running 30-35psi, it was more of a ball park boost level to give a rough idea. If the combo' achieves somewhere in the region of 450-500kW at the rears on say 28psi dropping to 24 for example I certainly won't complain. Solid area under the curve is exactly what I want to see and is what I'm used to based on my old set-up (although quite a bit less top end power). Estimated time of completion was mid Feb' but you know how these things blow out. I'll be sure to update when the time comes.

Hi all, another FP convert here. My new RB25/30DET (CP pistons, Argo rods, 9.3:1 comp, HKS 256/264 cams, head work, Supertech valvetrain etc) is close to completion and I have a FP GT3586R and FP 0.85 rear housing ready to go - well amost ready, awaiting ceramic coating of turbine housing and polishing of comp' housing. The aim is to run approximately 30-35psi on E85. Hoping for at least mid 400kW at rears, possibly sneak close to 500kW. Thoughts?

Recently upgraded my turbocharger for more power so my previous Turbonetics T62-1 is for sale. Turbonetics T62-1 / T3 0.63 Stage 3 (external wastegate) with polished compressor housing and silver ceramic coated exhaust housing. Included with the sale is: A second 0.63 Stage 5 (internal wastegate) housing, ceramic coated black A second 0.63 Stage 5 exhaust wheel Brand new Turbonetics bearing and seal rebuild kit to suit Ceramic coated dump pipe to suit external housing All items are in excellent condition and are only on sale due to upgrading to a larger turbo. The T62-1 has no shaft play, did very few kilometers (not fitted to a daily driver) and led a pampered life. The rebuild kit is not required, but it is there for down the track should the new owner ever need to rebuild the turbocharger. For info: Previously fitted to my 20thou over built RB25DET and produced 385kW at rears on approx 22psi running E85. Full boost and peak torque achieved by 4200RPM. This turbocharger enabled my full weight (full interior, AC etc.) R33 GTS25t to trap at 128.7MPH over the quarter mile. Price: $650 ono

Congrats on the time mate. You absolutely nailed that launch on that pass! Was hoping you'd crack a 10.9 on the last pass but looked like it bogged a little on the launch. Still, got to be happy with a 11.10 and the knowledge there's more in it. Cheers for the chips too dude!

Couldn't have asked for better weather in the end! A reasonable turn out of Skylines, including a blast from the past with the ex-Advan Performance purple R33. I rocked up just in time to see a very tidy silver 33 GTS25t run 12.3 @ 124mph. After a bit of a chat with the owner (top bloke - is on Sau too) I suggested a few things to help with his launch and traction... a run or so later and he nailed a 11.10 @ 128+! Great driving dude. Congrats!

It comes as no surprise manufacturers use displacement when they want to improve engine performance from one model series to the next. The only exceptions are when a manufacturer opts for forced induction over a previous naturally aspirated engine, and even then in time they may increase the capacity of the forced induction unit later in the model cycle. Mazda: SP20 2L- SP23 2.3L - SP25 2.5L Subaru: 2L - 2.5L Nissan: RB20DET - RB25DET / CA18DET - SR20DET / RB26DETT - VR38DETT GM/GMH: 5.7L - 6.0 - 6.2 etc. Ferrari: 348 - 355 - 360 - 430 - 458 Porsche 911: 2L - 2.2 - 2.4 - 2.7 - 3.0 - 3.2 - 3.6 - 3.8 - 4.0 Regardless of the engine, forced induction or naturally aspirated, there really is no replacement for displacement.

I'm going to pop down from Newcastle, where I'm working for the next two weeks and spectate. I haven't gone to the drags as a spectator in ages! I'll be sure to say g'day if I recognise your car's lads. The last time I ran at Eastern Creek was about 1999-2000, back when 13sec was quick for a street car.