Jump to content
SAU Community

Recommended Posts

An interesting read...

http://www.importbuilders.com/pistoncomparo.html

I went with wiseco as they appear to be quite common and proven in the rb30's.

It also made a big difference that my engine builder swore by them. lol

They also happen to be one of the lightest pistons.

But that said.. Wiseco and Arias are both very good pistons.

CP's and some of these others are also apparently good, I've personally heard on set of CP's that were very noisy in a CA18DET.

My engine builder uses these alot, on many different street & race prepped 4-&6cyl cars (including Skylines). I did a little research on these, didn't find anything to worry about.

2BNVS - My builder got these in Lilydale, Victoria. He paid $1100.00. I did a search in Google & and there is heaps of info on them & they should be available in NSW.

I was all for the Arias, cost wasn't really an issue, as they simular in price, but I was convinced by my engineer (had a first hand look at some of the engines he has built) & by a few people using these pistons & who had their engines built at the same place. Let's hope I made the right choice.

CP's and some of these others are also apparently good, I've personally heard on set of CP's that were very noisy in a CA18DET.

Mahle are pretty good pistons, as long as you get the clearances to the spec sheet provided everything will be fine.

CP's are very fine pistons, they require little clearances (much less than Arias or Venolia). Due to the low expansion/clearances required, if they were put in a motor and spec'd to "normal" forged pistons you'll have excessive gaps, and probably get a bit of piston slap.. as well as blow by and wear. I'd be pretty concerned/annoyed if I was the owner of that CA18.

I'd be pretty concerned/annoyed if I was the owner of that CA18.

Interestering you say that.

The builder is apparently the 'best' RB builder in SA, When choosing a builder for mine I threw a few questions at him and honestly had my doubts. So I went to some one else. :(

id stick with well known stuff for anything relating to a motor thats getting a forged bottom end.

no pint risking to save a few $$ and then be stumped later.

Arias all the way

Mahle is a lot better known around the world then Arias mate, thank Porsche for that. Infact Arias are probably cheaper.

Mahle is a lot better known around the world then Arias mate, thank Porsche for that.  Infact Arias are probably cheaper.

i was reffering to use in Skylines.

each piston would be different for the respective motor.

many RB's run arias

6 out of 10 Formula 1 teams use Mahle pistons. Thats a fair indication of their quality. Mahle is one of the worlds biggest piston manufacturers and supply F1, IRL, Nascar, WRC, V8 supercars etc.. as well as Mercedes, BMW, Porsche, Ferrari, GM, Ford etc.. They also own Cosworth Technology and ACL piston products.

They are a little dearer than most other pistons but quality costs money. Look at their F1 pistons, 19 500RPM, 15 000G when they change direction at that RPM and they stay together, thats a fair indication that they have it right.

Attached is a pic of their box-n-box design.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Update 4: Hi all. The car drives again! Haven't driven for long, only to store it in the garage again, but the test drive was successful. The coolant and oil leaks seem to be fixed for now. Temps on the engine were also very good, while moving I never even saw 80C water during the approx. 30 minute drive. Ate up all the coolant in the reservoir though so will have to fill that even more when I go to the car next time. One thing that pisses me off is that the RPM gauge is still f**ked, I even resoldered the board twice and used copper paste on the silly screws that are used as connections. Next time I take it out I'll take apart the board and fit new components, I'll see if I can get a replacement IC for it.  I have an appointment set for 22nd of September for the engine tune to 370hp. Alignment also still needs to be done. My hope is that I can get all the legal stuff over with by the end of this season. Anyone of you have advice regarding intercoolers? Currently there is an APEXI core fitted, one of those weird hybrid ones, 600x270x76. I don't think it's bad but it's not new and now I still have the chance to change it now to legally include it in the paperwork. Only issue is that the only options that would arrive in time are a HKS Type R intercooler or generic Ebay spec intercoolers comparable to a JustJap one. Ideally I'd order a Plazmaman but it takes over a month to receive which would mean making the car legal has to wait until next season. Would love to hear some input on this. Same story for my injectors, the previous owner was a nunce and put ID 1050x on the engine. They work but are obviously not ideal at "normal" power levels. But I don't see a reason to change them unless the tuner says it's necessary. I read online before buying a different exhaust that the top secret style rear diffusers won't fit due to the size of the rear resonators. My buddy and I made it work by slightly "adjusting the shape" of the mounting bracket and making some spacers out of 3d print for the mounting bolts. Fits like a charm. Just putting this here in case someone has this problem. Even the hefty HKS Silent Hi Power rear can fits without hitting anything.
    • Well they got my money but they are not getting my gearbox ! 
    • It's needed for rolling idle up, and I think it is a decider on VCT also.
    • I mean, not really. Link ECU's can absolutely still have errors from the ECU thinking it's getting a sensor it's not expecting. I would imagine the speed at the ECU level in Nistune does absolutely nothing anyway? I assume the ECU does not do any fancy TC stuff with regards to front+rear wheel speed or anything of that like anyway. Someone who uses Nistune may be more fluent in it. 
    • Not yet quite as bad as what we've seen a Jim Berry clutch do in an R32 GTR though when it decided to cut a chassis rail in half... Still very very gnarly and a great reason to avoid.
×
×
  • Create New...