MarkRobinson

Highly considering making a new coated-stainless exhaust manifold for the 951, to Rennlister's specifications. Manifold will have v-band clamps for easy fitment/alignment, provisions to control "walking" since stainless moves around quite a bit, and both stock & Tial flanges for WG's.

So, If I can provide such a header for under $700, tell me what you want please.

Here's a sample of some of my work: I work with Boostlogic in making my 928-turbo system & other manifolds for them.

Mark.

Duke

Equal length 4-1 headers with long primary runners for $700 and you just got yourself the first customer for those

MarkRobinson

can you elaborate on your 4:1 request & long runners please?

Yes, I know what you mean, but why you request this over the tri-Y design? Thanks!

Mark

Ski

Is this just headers or header/crossover to turbo...with v band clamps...elaborate and customer #2 might be here.

Opeth

Damn that seems like a good price, the SFR ones are 2g!!! definatley interested...

Duke

To maximize exhaust scavenging in upper rpms. I want maximum power, not torque

I could never justify the cost for a new exhaust manifold if it still kept the OEM design.

Duke

Ah here is a perfect example of the design I'm looking for:



With long primary runners in the correct length maximum high rpm scavenging can be combined with "tri-Y" low range torque.

MarkRobinson

I was thinking: 4:1 medium-tube header, professional-merged collector, V-band clamped to cross-under pipe & WG provisions & flange to turbo, two O2 bungs: one for factory, one for WB. Cost could be as high as $800 with everything, but hopefully cheaper. will have to build one first for pricing it out with my manufacturer.

Anyone know what ID's the primaries, collector/cross-under pipes are? For the Power most are makign who will want this manifold, I was thinking 1-3/4" primaries merged to a 2.25 collector. I think factory is 1-5/8 & 2" collector. Can anyone correct me?

mark.

MarkRobinson

ah, ala DC sports it appears.

MarkRobinson

I'll have to use a flexible joint, but they're not restrictive when placed out from the bends (turbulence & higher velocities on one side of the pipe).

95Juan

really? under 1k?


customer #3, depending on what it all looks like, lol.

MarkRobinson

951Obsession: look at the supra manifold in my first post: just like that. SS, coated.

95Juan

where's the jawdrop smiley?????



are you going to make more than 1 application? as in, one made for more street-driven "normal" cars, and a high-end one like Duke described? or will it all be high-end-of-the-rpm-range ones?


cuz i can always turn my 951 into "not normal", lol.

TRP951

depending on how they turn out you might have customer #4

theedge

Including crossover? For less than $1K? Wow....

What about two stages? Id be interested at some point, but I dont want to sacrifice the down low...