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next upgrade - newbies question

str77j

By str77j,
in General Automotive Discussion

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str77j Rookie

str77j

Posted
Posted

Need help.

The car is R34-GTS-T, had done this mods when i got it:

HKS cat back systems

HKS air intake systems

HKS intercooler

HKS evc

I'm thinking to get the cpu change, like Apexi Power Fc, Greddy e-manage, or HKS F con S. But my friend told me it's better to get the fuel pressure regulator and fuel pump change.

1. A'm I make a good decision by upgrade the cpu?

2. What would be better for the next upgrade?

Thanks

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benm Grand Master

benm

Posted
Posted

1. Front/Dump pipe (you'll be suprised at the midrange power)

2. Switch the boost up to 11-12psi (dont run any higher)

3. Exhaust Cam Gear

4. Fuel pump / Regulator

THEN.. start on the easy things like ECU, etc.

Al Grand Master

Al

Posted
Posted

Make sure your pod filter is sealed from the engine heat, and has a decent air duct from the front bar to the pod.

I Agree fully with benm, except for step 4/. fuel reg. and pump should be up to the task. When and if you decide to upgrade the turbo then do these mods.

I have an after market ecu and the gains were very noticable. Still running factory pump and reg. without any signs of leaning out, up top. a/f is approx. 12.2, which sacrifices a couple of rwkw to keep the engine very safe. Car pulls alot harder and feels alot stronger when tuned properly with a ecu.

My 2c

Alan

Guest Master of Disaster

Guest Master of Disaster

Posted
Posted

I dont know about 34 fuel pumps, but 33 ones are known for unreliability, which is why so many go straight for the bosch alternatives when powering up.

But yeah, as suggested, do the dump and front pipe first, and if fuel system is up to it, do the ECU.

As far as i know, no one can really proprerly tune an F-con in australia? Its certainly not as well known to tuners as the power FC, which has been tried and tested over and over. The E-manage apparently has some really good featurs that even the FC doesnt have, but again, less people know how to tune it properly.

Id go the Power FC, you cant go wrong. I dont know who would tune it in wollongong, but you can always go to croydon's in sydney. I think they did the tuning on the R34 gt-t project running in HPI mag.

Also, as suggested, apparently its a waste of time having a pod filter if its not partitioned.

Cheers, have fun! :burnout:

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