Pattey21

Hi there, I'm in the process of replacing head gasket (timing belt slipped). I've razor blade remove as much as I can but still not completely clean. Should I use a fine sand paper if so 1000+ or scotch brite etc Cheers

Then proceed to the classifieds and check out my sales thread to get yourself a sweet deal on a replacement turbo!

SAFC AND DUMP SOLD

Dump, Safc, bov and afm sold PPU

R33 radiator $50 Side indicators orange $20

R33/RB25Det Parts for sale. All removed in serviceable condition in way for upgrades. Rb25 R33 S2 21U turbo- was running 10.5psi minimal shaft play (see vid) $250 Rb25 r33 split dump- has been port matched (to a degree), no boost creep issues $100 Rb25 AFM-$50 Rb25 stock injectors wrapped and still in rail $50 Apexi Safc 2- has a tune for 10.5psi, r34 smic and full 3" exhaust 205rwkw $180 Rb25 bov-$30 Can provide more photos upon request. Parts located in A.C.T happy to post at cost price. Cheers

In the ACT. Pretty unfriendly with imports with regards to inspections

On e85? Cooler matters a bit more for 98

Haha I was like "what's a CT2 as well" I think he meant to write GT2 as the stamp on the intercooler on top in one of the pics.

Plan was to use something like this feeding the hotside to the top left. https://www.ebay.com.au/itm/293552927719 I know 180deg bends aren't ideal but surely one bending over 300mm (my current return flow intercooler is 300mm high and hotside runs underneath without clearance issues) Is better flowing than the sharp turn standard returns flows run.

Right, didn't know their radiators were rubbish. Thankyou for your responses

Good morning all, I've been doing some maintenance on my r33 and reckon I can make a convention cross flow intercooler fit custom return piping, utilising half my existing return flow piping. Has anyone used Mishimoto intercoolers before there particularly the m-line or s-line and how this compares to say a Hdi. Worth noting used in P98 setup hi teens boost 250-300kw range. https://www.mishimoto.com.au/mishimoto-universal-intercooler-large.html?utm_source=facebookAU&utm_campaign=DPA&gclid=EAIaIQobChMIz8rdjISF6QIVTyUrCh2U0QHYEAQYASABEgINb_D_BwE https://www.mishimoto.com.au/mishimoto-universal-front-mount-intercooler-s-line.html

For those interested with return flows, attached are the results for pressure drop, test points turbo outlet and intake manifold. This was done on the road not a dyno so the results vary a bit but can see the drop increase above 5000rpm

I'll definitely do another one before trying again. Spent a lot of time doing a pretty comprehensive boost leak test before. Pumped up to 20psi took 20seconds to drop to 15. Might be the limit of the turbo, turns out the result which netted 250 by Dr Drift had an ext gate, exh cam gear and maybe a ported manifold

Had a chat with Dr Drift. His had a ext gate and adj cam gears. He did have a return flow though. Sent Tao a message about upgrading to a g3 with BB

Sent you a pm ?

Hi Tao, Thanks for the response. when I was first bought the turbo you mentioned with the right supporting mods it could make 250kw. Reason for going g2 was wanting as close as possible to factory response as per your results below, where I seem to be making similar power but at 16-18psi instead of 13. Did you manage to achieve above 230 with this turbo? Guess I want to see if it's worth my while changing cooler and get the tune tidyed up a bit and try make close to 250. Kind regards Patrick

Yeah right. Well the plazmaman street series is a bar and played and the hdi is tube and fin. Those are the two I'm looking at at this point as reasonable options

Sorry put the question on the wrong thread, posted on hypergears

Got my car tuned finally by DVS JEZ after having some issues with "less competent" tuners in Canberra. I know my setup is not ideal (return-flow) but was hesitant to spend money on restrictive parts if i needed to spend money first on fundamental running issues. Setup is as follows: R32 Nistune ECU EFI solutions Top fuel rail kit, stock FPR with Bosch 0 280 157 187 495cc Injectors Bosch Z32 AFM 3" Turbo back (bellmouth, port matched) 3" 100 cel 4" body Venom cat, straight through mufflers Hypergear G2 21U Highflow Greddy Profec OLED EBC Custom Hard 3" intake pipe joining to stock Airbox, Return Bov Return flow AVO Turboworld intercooler R32 10psi actuator pre-loaded 3mm GTR BOV NPC clutch SPlitfire coilpacks Standard Walbro 255 with the wiring mod. Overall result is pretty good but quoted from Jez couldn't get more out of it "too prone to detonation", note the 230kw run was abandoned. so running 223Kw on 16psi Now i know its running right i am looking to buy a new intercooler either HDI or Plazmaman and the 5" body 100cel 3" cat and then getting the tune tidied up a bit. My initial goal was to make the most responsive setup compared to stock turbo running 98 and airbox (hate the sound of pod filter) hence g2 profile choice. Can see my old tune in second pic of stock turbo and breathing mods. Tao what do you think of the result? Besides changing the above (intercooler and cat) and staying on 98 and an airbox (happy to modify it), is there anything else i can do to increase response/boost response. Kind regards Patrick

Got my car tuned finally by DVS JEZ after having some issues with "less competent" tuners in Canberra. I know my setup is not ideal (return-flow) but was hesitant to spend money on restrictive parts if i needed to spend money first on fundamental running issues. Setup is as follows: R32 Nistune ECU EFI solutions Top fuel rail kit, stock FPR with Bosch 0 280 157 187 495cc Injectors Bosch Z32 AFM 3" Turbo back (bellmouth, port matched) 3" 100 cel 4" body Venom cat, straight through mufflers Hypergear G2 21U Highflow Greddy Profec OLED EBC Custom Hard 3" intake pipe joining to stock Airbox, Return Bov Return flow AVO Turboworld intercooler R32 10psi actuator pre-loaded 3mm GTR BOV NPC clutch SPlitfire coilpacks Standard Walbro 255 with the wiring mod. Overall result is pretty good but quoted from Jez couldn't get more out of it "too prone to detonation", note the 230kw run was abandoned. so running 223Kw on 16psi Now i know its running right i am looking to buy a new intercooler either HDI or Plazmaman and the 5" body 100cel 3" cat and then getting the tune tidied up a bit. My initial goal was to make the most responsive setup compared to stock turbo running 98 and airbox (hate the sound of pod filter) hence g2 profile choice. Can see my old tune in second pic of stock turbo and breathing mods. Tao what do you think of the result? Besides changing the above (intercooler and cat) and staying on 98 and an airbox (happy to modify it), is there anything else i can do to increase response/boost response. Kind regards Patrick

Hey all, Got the car tuned by DVS JEZ, no issues with fundamental setup compared to previous attempt. Was hesitant to upgrade prior in case there was actually an issue but will now be looking at a new inter cooler and maybe a better cat as Jez couldn't get more out of it "too prone to detonation", note the 230kw run was abandoned.

Good morning all, In preparation for my tune in a few weeks I was thinking of replacing my intercooler. The one I have pictured, is a AVO Turboworld, core size 450x295x87. 2.5" inlet and outlet. Does anyone know anything about them power handling or quality. As far as I'm aware they're not one of the cheap knock off brands but I can't find any info about their intercoolers for skylines. My setup will make best case make 230-250kw @ 14-18psi (R33 21U g2 350hp hypergear highflow) I know return flow tend to be restrictive but generally from 250kw onwards so may not be a issue for me. Just trying to justify spending $600-$1k On a new cooler if it won't yeild much benefit for my setup.

Yes i know was wanting to stay as close to my old tune in terms of response and daily drive enjoyment (200rwkw with SAFC). New setup should make 230-250kW. Max injector cycle 57%. I've attached pics of AFR down peak. Boost response is close to stock turbo. Making boost threshold (currently 10psi) roughly 3000rpm in 4th.