slickrock55

I found a pic of this manifold while browsing turbomustangs.com. (I know, I know, but they have the junkyard twin turbo setup worked out very well.) This is exactly the configuration of manifold i need. I will be running two .60/.63 t3's in the corner areas where the battery/charcoal canister were. I have most of it figured out but the exhaust routing.

So my question is: was there ever an application using this shape of manifold for a SBC? I need something with an exit goint straight out the side, at the end of the header. I looked into vette headers, but the exit was straight up, and l98 manifolds, but they aim the wrong way, and one side (i forget which) has the exit between the 3rd and 4th cylinder on that side.

Any help/ideas??

Here is the post:
http://www.turbomustangs.com/forums/...threadid=11485

slickrock55

heres the image attached

Lee7

that would be very easy to build, with better results.

fb305svs

i would create just a log style manifold... basically in a nut shell what those are...

B4Ctom1

Im actually interested in knowing what those are from so I can tell my ford friends...

onebadwagon

most ford guys are using the aftermarket 5.0 style headers, flipped to face forward, very cheap, and very effective.


adam

T'dpriece

actually, those manifolds suck. Being a log style manifold, there is a huge pressure difference between cylinders.

bEtUr4dRustang

This is one of your first posts. you can't come in here and state opinions that harshly before anyone knows if you even know what you're talking about

The discussion has been had. They're not as good as having headers but they'll do the job quite nicely for someone doing a budget setup.

fb305svs

of course they aren't going to be as good as a header setup!!! you don't have to be a genius to figuer that out...


Log styles can be made to flow quite nicely though, and in a cramped engine bay like ours, they get the job done...

there are many ways they can be improved as well- you can step the log part as to increase the size with the addition of each cylinder, you can angle the primaries into the log for improved flow, etc...

TwinTurboROC

he might be sorta right considering the ford firing order is different than the chevy, they pulse variation will cause a lil more restriction than it would on a chevy but not enought where you wouldnt create power (speaking about log manifolds only)

slickrock55

Yes . . . I know that an individual primary header would be much more efficient and make more power. I just dont have the free time or the fabrication expertise it would take to make something like this.

My plan right now is to build a log style manifold. It will use butt-weld pipe fittings (weld els). I figure using thick mild steel will be cheaper, and much stronger than using stainless. The bends will be placed from straight out of the port and have the other end facing up/forwards. It will join the "log" at a 45* angle to keep up velocity. I plan on using fairly thick header flanges, maybe 3/8-1/2". The "log" section of the header will be made from 2.5" to the t3's, which will be mounted on the front corners of the engine compartment (battery tray area).

Will an exhaust setup like this support the entire weight of a turbo without breaking anything? Or will I have issues with shearing bolts and leaking gaskets?

SOLID LIFTER

B4C, they look exactly like my old 289 manifolds that I pulled off my '67 Cougar. You should be able to get those off of any '63 - '67 Falcon, '64 - '68 Mustang, or '67-'68 Cougar. They may have also come on some of the post '68/'69 302 cars but I can't say for sure. The manifolds MUST be used from a 289 or 302 and not from a 221 or 260 V8 as those 2 motors had very small ports.