built head, eprom, dsmlink
 

I need a slightly built 1g head, a 95 eprom and dsmlink.

Re: built head, eprom, dsmlink
 

Talk to EclipseGST. He alone can fulfill your quest for your precious DSMLink.

Re: built head, eprom, dsmlink
 

There was a guy selling a EPROM with 'link on the old classifieds. Good price if I recal correctly. Who the heck was it though. I cant remember.

I am pretty sure he was one of the Winona guys.

Re: built head, eprom, dsmlink
 

Probably me. Talked to Brian last night about it.

Vassil was also selling his but his is for a 1g but that is sold now.

Re: built head, eprom, dsmlink
 

I was thinking Vassil. Couldnt think of the name though.

Re: built head, eprom, dsmlink
 

Yea I think I've got it all figured out now. Can't wait to get tuned!

Re: built head, eprom, dsmlink
 

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Re: built head, eprom, dsmlink
 

It was me TIM I'm selling an eprom for 125

Re: built head, eprom, dsmlink
 

Actually I've found a v2 dsmlink and eprom for a good price. I am still looking for a slightly built 1g head though.

Re: built head, eprom, dsmlink
 

Throw a 2G head on it.

Re: built head, eprom, dsmlink
 

Why would I do that when 1g heads flow better?

Re: built head, eprom, dsmlink
 

Which one makes more power though? Take a look at the port size on an Evo head, it makes 2G stuff look big. And those heads make killer power compared to DSMs. I have always had good results with 2G heads on cars from 16Gs to GT35Rs. The 2G intake manifold and throttle body do suck. I have one customer with a stock 2G head(with 272 cams) on 2.4l bottom end and 61mm turbo. It makes a tad over 400 DD awhp at 19psi on pump gas.

Re: built head, eprom, dsmlink
 

Well tell me if I'm dumb but I was planning on doing a 6bolt bottom end down the line when/if my 7bolt walks and I thought i'd just be easier if I started out with the 6bolt head. Plus I figured that the 6bolt and 7bolt heads are the same except the 6bolt flows more. Am I missing something???

Re: built head, eprom, dsmlink
 

It might flow more but like Shane said, look at the Evo head as an example. The least restriction(flow) is not necessarily the key point. You need velocity to get the air/fuel charge into the combustion chamber.

Get to the point of a huge turbo and maybe the 1g head will be better? I cant say for sure because I have never researched it.

Re: built head, eprom, dsmlink
 

I have a compleat evo III head
bigger stock cams ,heaver springs,flows the best of the heads
250.00

Re: built head, eprom, dsmlink
 

So let me get this straight. 1g heads flow best, followed by the 2g heads which are then followed by the evoIII head. But what you guys are saying is that my big16g may not flow enough to actually "need" a 1g head? I always figured the 1g head would add a little power because of the whole flow thing.







pm sent

Re: built head, eprom, dsmlink
 

the evo head make the most over the dsm heads because of the design of the head and runners in it

Re: built head, eprom, dsmlink
 

Ok so it may not flow more than the 1g's but because of the design of it it's able to make more power?

Re: built head, eprom, dsmlink
 

You want the head to perform optimal cylinder filling. Too big of port/too much flow and velocity of the air slows down so much that you don't get a complete fill during the intake stroke. You could bore the hell out of the ports and make them flow whatever on a flow bench, but that might be counterproductive unless you are reving to 15,000 RPMs.

It's is hard to say what is best. The old conventional wisdom was that bigger was better, 1G head had bigger ports, so it's better. I am rarely disappointed by cars on the dyno with 2G heads once the shitty intake manifold, TB and cams are replaced. I am often disappointed with cars with ported 1G heads on them, more than ones with stock 1G heads. I don't push head porting at all at our shop, most of the decnet power DSMs that I have dealt with have had unported 1G or 2G heads. Some of the fast guys started figuring out how little doing a stage 19 head port helped when they would ruin their main head and have to throw on an unported backup head at the last minute at the track or dyno.

I would do a little clean up work on any majopr casting flaws, but I wouldn't go much farther than that, and polishing is absolutely worthless except for pictures.

Re: built head, eprom, dsmlink
 

Thanks for the info! What about an EvoIII head? shorter runers but they don't flow as well. Would it be worth it to port that out or would it be best to leave it stock?

Re: built head, eprom, dsmlink
 

Also with the evoIII head, since the ports are smaller, would it still be worth it to upgrade the stock 2g intake mani and TB?

Re: built head, eprom, dsmlink
 

Shane's talking about smaller ports on an EVO 8 head. I'm not sure what the EVO 3 has in comparison, probably similar to the 2G since they're similar engines.

The 2G head is very good, Kevin Kwiatkowski runs 9's with one with little to no porting last I heard. From personal experience, I had a heavily ported 1G head on my car and I picked up a noticeable gain in power and spool up going to a cleaned up stockish port 1G head. Basically I learned a lot from my original porting work 7-8 years ago to what I just put on 2-3 years ago. Totally different and much better by the butt dyno on my old setup.

The 2G TB and intake are restrictive unless you want maximum torque with a stockish turbo. Exactly what the designers were looking for.

Re: built head, eprom, dsmlink
 

Yea I'm not looking at porting anything. I am probably just going to go with the evoIII head cause the cams are a little bigger and the runners are a little shorter. I'll get a 1g TB and intake mani thought. This seems to be the best way to go for me. If I were planning on getting 272s and going with a fully built head, I would probably stick with a 2g head. But I'm only shooting for mid 300awhp.

Re: built head, eprom, dsmlink
 

Now that I think about it, would it be dumb to upgrade to a 1g intake mani? I realize the 2g doesn't flow quite as much, but it does fit up to the evoIII head, unlike the 1g head.