Jump to content
SAU Community

Compression Test

niran

By niran,
in Engines & Forced Induction

 Share

Recommended Posts

bubba Grand Master

bubba

Posted
Posted (edited)

What's passing EPA got to do with a 30? the emissions gear is with the head and if it's tuned well, why would there be any issues?

I know there are legal issues in other states but emissions testing shouldn't be a drama.

I think there's even a couple of people on the forums from over east who have had their twincam 30's pass emissions testing.

To me, it's a no brainer. If you're going to rebuild an RB20, why not just build a twincam 30?

Edited by bubba
_Ryan_ Grand Master

_Ryan_

Posted
Posted
What's passing EPA got to do with a 30? the emissions gear is with the head and if it's tuned well, why would there be any issues?

I know there are legal issues in other states but emissions testing shouldn't be a drama.

I think there's even a couple of people on the forums from over east who have had their twincam 30's pass emissions testing.

To me, it's a no brainer. If you're going to rebuild an RB20, why not just build a twincam 30?

true, emissions wise its fine, legally its not. bashing out a post on my lunch break wasnt smart haha

  • 9 months later...
Spurdo Experienced

Spurdo

Posted
Posted

if you have bad compression you either have bad valves or bad rings (possibly a combination of both). more than likely its just the rings getting tired. its probably not worth rebuilding the rb20 when you could upgrade to rb25 for similar money and have a much better engine. plenty more torque and power to be had even with a stock rb25 and they have some very cheap upgrade options for the intake where with rb20 some stuff needs custom fabrication and costs heaps to do so. yea rb30s are good too, all depends how hardcore you want your engine to be, and how much fuel economy your prepared to sacrifice if you drive it regularly

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Murray_Calavera
      The Evolution Of "night Fury"

      By Murray_Calavera · Posted

      Price seems pretty good to me. Also seems a hell of a lot cheaper then buying another vehicle that only ever gets used for towing.  I'm a long way from you mate, I'm a couple of hours out of Brizzy. 
    • niZmO_Man
      Dumb rich kid tries modding for the first time

      By niZmO_Man · Posted

      New [400]Z, they're available in manual and you don't have to worry about parts scarcity. 
    • turbo76lx
      Torana Lx Gtr Hatch, Lots Of Pictures

      By turbo76lx · Posted

      Just planning to have the wiring neat and hide as much as possible.
    • MBS206
      R32 GTS (RB20DE) Injectors Replacement

      By MBS206 · Posted

      The sodium acetate, mixed with citric acid, doesn't actually buffer each other. Interestingly though, if you used Sodium Acetate, and acetic acid, THAT becomes a buffer solution. Additionally, a weak acid that can attack a metal, is still a weak acid that can attack a metal. If you don't neutralise it, and wash it off, it's going to be able to keep attacking. It works the same way when battery acid dries, get that stuff somewhere, and then it gets wet, and off it goes again breaking things down. There's a reason why people prefer a weak acid, and it's because they want TIME to be able to be on their side. IE, DIY guys are happy to leave some mild steel in vinegar for 24 hours to get mill scale off. However, if you want to do it chemically in industry, you grab the muriatic acid. If you want to do it quicker at home, go for the acetic acid if you don't want muriatic around. At the end of the day, look at the above thumbnail, as it proves what I said in the earlier post, you can clean that fuel tank up all you want with the solution, but the rust that has now been removed was once the metal of the fuel tank. So how thin in spots is your fuel tank getting? If the magazine on the left, is the actual same magazine as on the right, you'll notice it even introduces more holes... Well, rust removal in general actually does that. The fuel tank isn't very thick. So, I'll state again, look to replace the tank, replace the fuel hanger, and pump, work out how the rust and shit is making it past the fuel filter, and getting into the injectors. That is the real problem. If the fuel filter were doing its job, the injectors wouldn't be blocked.
    • GabsReDeal
      R32 GTS (RB20DE) Injectors Replacement

      By GabsReDeal · Posted

      Despite having minimal clothing because of the hot weather right now, I did have rubber gloves and safety glasses on just in-case for most of the time. Yes, I was scrubbing with my gloves on before, but brushing with a brush removes the remaining rust. To neutralize, I was thinking distilled water and baking soda, or do you think that would be overkill?
×
×
  • Create New...