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Zoid Builds A 25\30

zoidbergmerc

By zoidbergmerc,
in Tasmania

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brad 110 Collaborator

brad 110

Posted
Posted

I've taken .120 plus " off these heads and just remilled the oil feed relief, piston to valve like Ben suggested can be an issue as the VCt in the 20 deg advanced position will net you up to .180" lift at dtc on the inlet and by reducing the deck face the valve drop to head face will be reduced by close to same amount, this will vary on where the cams are dialled in. You will need to get Hollywood to straighten it first before you surface it unless you have a special set of cams with a bend in them to suit your as stated not perfectly straight cam tunnels and then just never rotate them!

What ever you need as listed above I have and no longer will be using off my shit box Datsun as heading down another path on the new engines let me know if I can help.

trustr32 Rising Star

trustr32

Posted
Posted

I was also eyeing off that GT3540 for sale in the other thread, will that fit in stock low mount position?

Why dont you see if you can borrow jacks for a test fit........... he's not using it lol

XRATED Veteran

XRATED

Posted
Posted

I doubt it mainly for the compressor housing.

Yeah, you'd have to space it out a fair bit.

I don't rate hifliws buy on a 3l it wouldn't be to bad. Depends what you are after. I've got exhaust manifold and turbo lines if you think you mite go that way.

Exh housing is too small for the 3lt, even the OP6 r34 housing... too much back pressure... ping ping ping

One of the best rb set ups I ever had together was the 25/30 in my old r32 gts-t.... 25/30, T6725g and 4.3 gears :-) so much torque! pretty much stand on it anywhere over 2k and it was wheel spin city!!

Maybe a td06 20g and get a t3 rear housing with v band dump to suit and whack an external gate on your std mani.

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