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Rb20 Not Sure Anymore

D-limo

By D-limo,
in Engines & Forced Induction

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Cubes Grand Master

Cubes

Posted
Posted

Listen to Troy. :domokun:

Having a motor that I spent quite a bit on leaves one worrying that it will break. :blush:

$500 cheap RB20 and then building your rb23 up on the side yourself for cheap is definitely the way to go. So so much more enjoyable.

D-limo Veteran

D-limo

Posted
  • Author
Posted

Pistons - I'm a bit stumped with these atm(and the crank and rods for that matter). Had a quick squizz then, they also have 'UNISIA' and an outline sorta thing of the Nissan symbol.

I'm pretty stubborn when it comes to using jap only parts. Unless there is a clear advantage I would much prefer keeping it all jap. Old bearings look like standard Nissan.

Forced induction is by a full HKS T04e kit. Hence I would rather go with the combination now that will help with response in any way. Labor cost for the entire build is a couple of bottles of bourbon.

Cams - Read through the 'RB26 camshafts in RB20' thread. Aftermarket seems like much less hassle. Will be keeping a look out on Yahoo.

Bl4cK32 Grand Master

Bl4cK32

Posted
Posted
Cams - Read through the 'RB26 camshafts in RB20' thread. Aftermarket seems like much less hassle. Will be keeping a look out on Yahoo.

Be aware that that thread talks about using stock rb26 cams in an rb20 engine which no one has proven it to work.

Reground rb26 cams (to suit a hydraulic lifter application) has been proven to work.

Roy Grand Master

Roy

Posted
Posted

Grab a 3071 on the HKS TO4E kit...throw in some Tomei pistons, or if you can wait some custom Cosworth or Arias pistons that are 83mm. Stick with your current bottom end.

Also, dont go too big on the cams. Look at the duration of the RB20 cam to start with...remember its only a 2L. At best grab some baby 256 etc cams and get what increase in lift you can. STD RB20 cams in my experience are no bad thing. Bigger cams may help, but my experience was that it took more fiddling then your new 17yr old girlfriend to get decent action from :thumbsup:

Match porting and cleaning up std gear is cheaper and possibly the better route.

  • 2 weeks later...
D-limo Veteran

D-limo

Posted
  • Author
Posted

Cheap RB20 has been acquired! Makes alot more sense to research and slowly build the 23/24. Maybe I'm stupid but now I'm kinda looking forward to no boost below 4k.

Power Enterprises F1 Black metal bearings sound good?

Reground RB26 cams I will have to look into further.

After seeing a pic of GTR pistons I'm certain the ones removed from the stroker are stock Nissan. Why Nissan would release pistons in that size I don't know.

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