Calling the Pierat r.e. Duratec bellhousing

[moosetestbestanden]

Tom,

I'm pretty sure the bellhousing that Will supplied w/ our cars were made by Raceline (not Titan). Do you know for sure?

[Elv15]

Hi Chris,

I thought that they were made by Titan for Raceline...but who knows. There is no marking on them that I have seen. They could be a SBD item?

If I was going to build another car I would use the shorter bellhousing that is now available. It requires a bit of massage to one of the chassis rails, but it moves the engine back almost 2".

Tom

[slomove]

......It requires a bit of massage to one of the chassis rails, but it moves the engine back almost 2"....

Just out of curiosity and maybe a dumb question: why would moving the engine back 2" be good? AFAIK most Sevens are anyway a little bit stern-heavy.

Gert

[JohnCh]

I believe Tom is right. I've been told that all Raceline cast items are made by Titan, whereas the SBD bits are made elsewhere. I've also heard that the SBD bellhousing has a removable panel on the top that provides access to the clutch slave cylinder. The Raceline item simply has two holes in this area: one for the bleed nipple and one for the hose that connects the clutch master cylinder. I can't confirm if the above is correct for the SBD, but my Raceline bellhousing just has the two holes and requires engine removal to replace the clutch slave.

Gert, moving the engine back decreases polar moment of inertia by getting the big masses of the car closer to the rotation axis, which in theory should improve turn-in quite a bit.

-John

[slomove]

....Gert, moving the engine back decreases polar moment of inertia by getting the big masses of the car closer to the rotation axis, which in theory should improve turn-in quite a bit.... -John

Aha, that is behind it in theory.

Given I weigh almost as much as my engine I should achieve the same effect by moving my butt an inch or two in the seat ;-)

Another question is where the actual rotation axis is. Depending on under/oversteer is will probably not be static. Oh well, probably not much difference for me.

Gert

[moosetestbestanden]

Well, the reason I asked is because Ammo asked me whether I have the Titan or Raceline bellhousing. So if Titan makes the Raceline unit, who makes the Titan bellhousing?:D

I'm pretty sure SBD doesn't have alimunium casting capabilities so someone (Titan?) is probably making theirs too.

Anyway, he said I should be able to tell by looking at the top of it, which probably means the holes thing mentioned. I'll have to drop him a note.

[Sean]

Chris - I believe mine is a Titan (modified), only because the word "TITAN" it is cast into it on the left rear surface:




Here is a view of the top:




Hope that helps...

[moosetestbestanden]

It does indeed Sean. Thanks!