Boost On R33

[mrp699]

Hey,

Just wondering i got a 94 R33 GTST, Full exhaust turbo back no restrictions but a high flow cat :wassup: K&N Filter, Turbo smart single stage boost controller etc...

As you can see nothing major as far as mods. Running the car on 10-11psi at the moment and it goes good. When i run her up to say 13psi its just misfireing and probly going slower. Any ideas?

[Sydneykid]

Excess airlfow protection by the standard ECU. Do a search, there are plenty of threads on that subject.

[Guilt-Toy]

Yep. take your spark plugs out and gap them to .6. That will fix the problem.

[Guilt-Toy]

Excess airlfow protection by the standard ECU.  Do a search, there are plenty of threads on that subject.

He is missfiring.. not putting his head through the windscreen on airflow cut

[mrp699]

.6 gapping running .8 at the moment, cause i am getting a front mount hopefully end of week from speadfreak.com.au what do you guys think of those?

[Sydneykid]

Yep.  take your spark plugs out and gap them to .6.  That will fix the problem.

Yep, that'll fix the missfire and at 13 psi it will then hit the excess airflow protection, if it hasn't already. I was just being economical, saving another post later on.

[mrp699]

Alright cool, also what do you think about the cooler set-up i'm getting any advise 600x300x75 from speadfreak.com.au mandrel bent pipes etc etc...

I also found a big power increas recently chaging my exhaust to stright pipe runs straight through from the dumper then the h/f cat then straight to the back runs through the middle of the cannon also. Sounds sweet...

[Sydneykid]

Alright cool, also what do you think about the cooler set-up i'm getting any advise 600x300x75 from speadfreak.com.au mandrel bent pipes etc etc...

I also found a big power increas recently chaging my exhaust to stright pipe runs straight through from the dumper then the h/f cat then straight to the back runs through the middle of the cannon also. Sounds sweet...

Up to 300 rwkw, I have found the R33/34 GTR standard intercooler to be hard to beat.

[nmcmahon83]

Sydneykid, that's 2 beers this lunchtime... hope your workplace isn't as strict as mine