TPI SBC refresh with G6 6 speed trany upgrade (Page 2/16)
Archie OCT 08, 02:05 AM
Good luck to you Alex. As you know you're the 1st one putting one of these together with the new video instructions.

Let me know if there's anything you need help with.

BTW: I have the DGI-5, should be getting the new circuits for it real soon.



quote
Originally posted by Reise:

I'm a machininst by trade and I would have been proud to claim those heads as work done by me those things are exquisite!!!
Laters

Brian



That's exactly what I thought when I look at those pictures, then I scroll down & you've already said it.

Archie
Alex4mula OCT 08, 10:44 AM
I am no machinist and I agree these are a work of art too. Too bad my wife doesn't let me have them in our living room


quote
Originally posted by Reise:
..also why the F40 tranny i've heard that 1st was way too short and that it was a very notchie tranny? but reguardless I hope you enjoy!!
Laters

Brian



The F40 because is brand new and because it has 6 speed. Good for gas milage at Power Tour I heard about the short 1st in the Getrag and I don't agree unless you use the car for drag racing all the time so I guess it can't be worst on this one.

Archie;
The video instructions have been great and very clear. I like the detail of the intermadiate shaft install. What I'm not sure is if I missed where to put each cable at the trany side. I'm not there yet (nor close to it) but hope to get soon

Here are the GMPP roller rockers that will go in. Lift with these will be .570/.565 I/E
Alex4mula OCT 08, 10:55 AM
Let's get started with this trany install. This is a comparison of the two from behind. As you can se F40 goes much lower and a little higher.


On an SBC (at least with Archie kit) the first thing you need to do to bolt it up is grind the area next to the top right and bottom left adapter plate bolts as show below. Of curse not needed in a 2.8/3.8/4.9.




Here is my first install to get the trany mounts aligned and welded.
p8ntman442 OCT 08, 06:34 PM
Why not just countersink the adapter plate so you dont have to notch the tranny case? You could make the hole large enough to get a socket in, and it would be perfect.
FieroWannaBe OCT 08, 06:43 PM
What is the flywheel like with this setup? dont G6's have special kid of flywheel? the one you have must be massive.
Archie OCT 08, 07:09 PM

quote
Originally posted by p8ntman442:

Why not just countersink the adapter plate so you dont have to notch the tranny case? You could make the hole large enough to get a socket in, and it would be perfect.



What he's doing in this buildup is retrofitting the 6 speed to a V-8 car that has been assembled for a few years. He bought the adapter plate with the non-counterbored holes a few years ago. There was no reason to C'Bore those 2 holes until the 6 speed was installed as they didn't interfere with any of the original Fiero stick shift transmissions. The adapter plates that are currently in production all have these 2 holes C'bored.

With a Fiero Getrag this was not a problem, but on the new 6 speed there is an extra reinforcement wall in the Bellhousing. Check out the picture of the 6 speed showing the wall that would be equivalent to the Getrag case & then a 2nd wall that the 6 speed has.So guys doing a retrofit of the 6 speed into an existing V-8 car would need to either C'Bore those 2 holes on their old adapter plate or put a small notch in the extra wall on the transmission.



Archie

[This message has been edited by Archie (edited 10-08-2006).]

engine man OCT 08, 07:19 PM
how much hp can the 6 spd take befor it blows up
p8ntman442 OCT 09, 06:47 AM

quote
Originally posted by Archie:


What he's doing in this buildup is retrofitting the 6 speed to a V-8 car that has been assembled for a few years. He bought the adapter plate with the non-counterbored holes a few years ago. There was no reason to C'Bore those 2 holes until the 6 speed was installed as they didn't interfere with any of the original Fiero stick shift transmissions. The adapter plates that are currently in production all have these 2 holes C'bored.

With a Fiero Getrag this was not a problem, but on the new 6 speed there is an extra reinforcement wall in the Bellhousing. Check out the picture of the 6 speed showing the wall that would be equivalent to the Getrag case & then a 2nd wall that the 6 speed has.So guys doing a retrofit of the 6 speed into an existing V-8 car would need to either C'Bore those 2 holes on their old adapter plate or put a small notch in the extra wall on the transmission.



Archie




Archie, glad to hear the new ones have the counterbore, And I understand he is using a pre f40 design adapter, But I dont understand why he didnt modify his adapter plate, rather than cut the bell housing. Its not very hard.

Alex4mula OCT 09, 09:09 AM

quote
Originally posted by p8ntman442:


Archie, glad to hear the new ones have the counterbore, And I understand he is using a pre f40 design adapter, But I dont understand why he didnt modify his adapter plate, rather than cut the bell housing. Its not very hard.



Four reasons; 1st is too late. Done already. 2nd it was easier & faster to do the little notches to the trany. 3rd I don't have the counterssink equipment to do it and 4th it was cheaper

FieroWannaBe; Archie designed the kit to use the same V8 kit flywheel. An extra adapter is used.
Alex4mula OCT 09, 06:08 PM
Little problems found during uninstall. I hate oil. It should be like alcohol that evaporates quickly. But no. A little leak and a big mess starts to collect I had this leak on top of the starter for a long time. Now I know the source(s). Main one I think is the bolt holding the oil relo adapter. You can see the big drop there. Then the hose connectors seem to have a small one too. I may change to braided line here as also my exhaust is burning the hose. My design flaws...