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Thanks, I guess there is no need for the extra revs if that's the power goal.

What head work would you suggest?

Just trying to wrap my head around this - appreciate your replies

head work depends on your budget. Commonly ppl go port & polish.

My head built by Jhh Racing - CNC ported, supertech bronze valve guides, valves & dual springs, ferrea titanium retainers

Hks 272 cams and tomei cam gears... There's a lot more involved but that's just the components

post-16832-0-67161400-1441410585_thumb.jpgpost-16832-0-69666300-1441410607_thumb.jpg

  • Like 3

head work depends on your budget. Commonly ppl go port & polish.

My head built by Jhh Racing - CNC ported, supertech bronze valve guides, valves & dual springs, ferrea titanium retainers

Hks 272 cams and tomei cam gears... There's a lot more involved but that's just the components

Out of interest what are your goals and what head work is needed to achieve it?

My goal was to be able to rev as its built for a drag power band, so this head is built to rev till 10,000rpm on my bottom end.

This same combo has revved to 11,000rpm with a lighter built bottom end.

Edited by QUP29
  • Like 1

It's been CNC machined ported for maximum flow. I don't know how much came out as its a Jhh racing spec, secret squirrel stuff also forgot its 1mm oversized as well so yes they did do valve work!

post-16832-0-22209000-1441438818_thumb.jpg

Edited by QUP29
  • Like 4
  • 1 year later...

Don't know if anyone is still interested but here is my real world experience. Own an R32. Made close to 400 atw. With bolt ons. Never did cams though. Was happy till a minor engine issue. Decided to rebuild. Didn't know if I wanted a 2.6 or a 2.8. Walked into a workshop and got to go for a ride in 2 gtrs. Both were single turbo cars 600hp 2.6 and a 740ish hp 2.8. Both drove better than my low mount twin setup. Why? They were better built and better equipped and better setup cars. Everything was matching. Either one could be driven daily. A well built, well setup car will be most fun to drive. Find a good shop. Get good parts. Take your time. If the opportunity is there. Drive different setups. I was sure I knew what I wanted. After just two drives, my plan turned on its head. There are so many videos of cars. Every combo you could think of. Nothing worse then redoing something.

 

 

 

  • Like 2
So what did you end up doing George?

A high compression ratio, forget, worked 2630 with a gtx4294r on the side sculling e85 through id2000s and 3x044 pumps.

Our first plan was a 26 with twin 2860-5 then we decided to go for 6466. After pooping my pants in an rb28, plan changed again. By luck a few parts for a 2630 turned up along with a turbo kit and here we are.

But I will never forget the difference between my car originally and the 2 gtrs in the shop. They were so well sorted. No flat power spots. Everything just worked.

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