Big ups to RRM for moving G94s into the next level . Headwork should be near the bottom of everyone's list of things to do but when the time is right it's an absolute must.

I did both of my heads and the gains are very noticeable. The caveat is you need to get the exhaust side done right. If you open the exhaust too far you'll find a loss of torque and you'll actually suck exhaust back into the combustion chamber. I went big on the first one, and while I was happy with the HP gains I can honestly say a gasket match on the exhaust side made better torque and about the same HP. I believe that velocity is more important than volume. These findings are for an NA with... oh god here we go:

Head: just over gasket size on intake, on the exhaust side I matched the top and sides of the ports to the gasket but left most of the bottom of each port (this was the setup that felt better). The valves were simply lapped as I've read both sides of the multi angle grind argument and decided it wasn't worth it for me.

stage 2 RPW cam and valve springs
SRI w/ram duct
60mm TB
ported G93 IM
eManage tuned to 12.7 AFR
at the time the timing was at 12 Deg advanced
RRM header
Custom DP and the rest of the exhaust is stock

Turbos may benefit from a fully opened exhaust port.

QUESTIONS for RRM
Will you be providing an oversized gasket set? OR will you attempt the phenol gaskets again?

You're calling this a stage 2. Will there be a stage 1 that perhaps doesn't have the valves ground?


Nice work.

 

The ports are not impeded buy the gaskets so no need for a set. AS for Stage1, we will prolly offer rebuilt and lightly ported/polished head in the future as our Stage 1 head. We need to build up cores for the head swap program. HEAD IS WHERE IT IS AT. Eventually guyswill run out of mods and want to go this way, especially after 70,000 miles you will want to freshen up engine anyways. Why not bolt on some performance.

ROAD/RACE

 

see ive been thinking of doing the bottom end and buying this as well and doing it all at once and making my car as fast as the drag car and omars buuuuuut im worried that other stuff is gonna start breaking when ur pushing that kinda power on a car that came w/ 120-130hp at the crank!!!!

 

i cant even tell you how excited i am for this.

 

isn't that the fun part? it's part of the game.

 

no its not part of the game, it turns into a money pit and a unreliable car

 

i got a question since the head is all put together and all we have to do is bolt it in and mail you our old one... could we send you parts from rpw (cam and springs) and have you put them in the head before you send it to us?

 

damnit rob, why you gotta do this to me

 

robs saving to buy an island. with a track around it. he needs ur green.. help him.. help him with his dream..i will soon enough. lmao dammed crook, might as well tap our bank accounts. just think if they had a roadrace visa... HAHAHA ///

rock please make a visa card.

 

Sorry. I wish I was saving for an island. Don't think I have not thought of it. As for waiting for other parts, I see why that would be good but I cannot do it because I only have a couple cores right now. I may change my mind later. Point is if you are wating for parts to install don't get the head and just sit on it waiting for a cam. I waited 4 months for a RPW cam. You better not keep our core head for that long or someone's gonna come and break some knee caps.

ROAD/RACE

 

LMAO.. i wake up to a knock on the door, its corey with a bat. "hey pete"

oh ****.



dam sucks u had to wait 4 months for a part ...

 

As long as someone else brought up the subject, a 4 month wait for a cam is exceptional. When I ordered my cam it arrived in 9 days... ok, the shipping tube got here in 9 days because customs cut open one end and lost the cam. The replacement took 6 weeks because they had to have a new stage 2 milled. Which is still longer than you should be waiting to install a head but the 4 months is like really bad. The cam install is easy, the valve spring install is a little tricky because you have to keep track of the valve spring retainer clips. Valve springs should take about 2-3 hours to swap and get one of the large "C" clamp looking spring compressors (I may be retarded, I could not get the screwdown style clamp to work at all).

ok, my $0.02 on cams and springs

 

definatley need to get a head/cam program goin on.

 

I really did wait 3-4 months!! Maybe someone didn't want me to get a cam or I caught them at a time when they were out of blanks.

ROAD/RACE