logo
12 Port News - Features
12 Port History
Casting Numbers
Online Store
Tech Tips
Become a Member
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 2 of 8 1 2 3 4 5 6 7 8
Joined: Jul 2000
Posts: 4,588
Likes: 20
1000 Post Club
**
Online Content
1000 Post Club
**
Joined: Jul 2000
Posts: 4,588
Likes: 20
The cloyes gears are a degreed set. which is a little more but not by much.


Larry/Twisted6
[oooooo] smile
Adding CFM adds boost smile
shocked God doesn't like ugly.
Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
"The cloyes gears are a degreed set. which is a little more but not by much"

That is the set I always use.
Hank


12 port SDS EFI
Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
More updates. I got my pan and rocker cover back and painted up.



Also I began work on making a custom adapter for the Holley 500cfm 2bbl. Had to make my own to put the fuel bowl up front instead of 90deg like the offy adapter puts it.


Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
I got my balancer today. a SBC balancer cut and groved.... very nice fit. Also using a piston stop I verified TDC and remarked the timing line on the balancer itself.


Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
More update pics. I finished my home made adapter for the 500cfm 2bbl. Came out great.



Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
Looking good!
Not sure if you done it already but you can port & open up your exit on the exhaust manifold & run a larger pipe for better exhaust flow.
Got anymore pics of your balancer w/the grooves?


12 port SDS EFI
Joined: Jun 2006
Posts: 191
D
Contributor
Offline
Contributor
D
Joined: Jun 2006
Posts: 191
Definately cool!!! I think the 50cc accell. pump might prove to be too large though.

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Hank any instruction on how to port that open I would love to know how. As for the 50cc pump yeah i figured it might but it was on the carb when I bought it. I have a 30cc one if need be to change it.

I can get some detailed shots of the balancer for you tomorrow. The guy did a great job.

Hank BTW do you have any pics of your setup in your camaro as fas as turbo location? Im wondering how to mount a small turbo off the stock log.

Joined: Jun 2006
Posts: 191
D
Contributor
Offline
Contributor
D
Joined: Jun 2006
Posts: 191
The 292 exhaust manifold will bolt right up, it uses a 2 1/2" pipe and has a three bolt flange. But it looks like you already have your stock manifold looking pretty nice on there.......

Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
Diesel Dan is right , if you can locate a 292 manifold put one of those on instead of porting your 250 one.
Porting is done by grinding w/a porting tool, electric or air type.
Use a carbide cutter & just grind the opening bigger.
I think you might get close to 2 1/4 opening?maybe???, if not that big, anything will help, I think it is smaller than 2" as they come stock?

Maybe some guys here have some 2.5" manifolds lying around??


12 port SDS EFI
Joined: Dec 2000
Posts: 3,332
J
1000 Post Club
*****
Offline
1000 Post Club
*****
J
Joined: Dec 2000
Posts: 3,332
Yes the (large) 292 manifold is the best choice. \:\)

It only comes on the series 40 trucks though. Otherwise there the same as the 250 with the (2 bolt) smaller pipe.

There hard to find as well.

Good luck. \:\)


John M., I.I. #3370

"There are no shortcuts to any place worth going". -Anon
Joined: Apr 2004
Posts: 3,566
Likes: 37
1000 Post Club
****
Online Content
1000 Post Club
****
Joined: Apr 2004
Posts: 3,566
Likes: 37
rev, another tip for you. truck motors(1/2 ton on up) used a different motor mount that bolted to the block. it is shaped to accept a small block chevy rubber motor mount. these are much better at holding the motor than the thick rubber ones used in cars on sixes. these were used on 250's in pickups. you will also have to use the corresponding v8 bracket for the frame. tom


Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
Information and parts www.12bolt.com

Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
tlowe I.I
so you are saying, get a truck rubber mount.
But if you do, you need a V-8 frame mount?
Or?????
Did you happen to take any pics of your 292 mounts in your 65 Elky?


12 port SDS EFI
Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
No joke huh. See im going from a 8 to a 6. I got the 6cyl frame mounts but one is taller then the other. You saying that if I can find these truck motor mounts I can use my V-8 Frame Mounts?

Here is my issue right now. One frame mount is taller then the other. Anyone know which ones goes on which side? This is for a 72 Nova

Joined: Apr 2004
Posts: 3,566
Likes: 37
1000 Post Club
****
Online Content
1000 Post Club
****
Joined: Apr 2004
Posts: 3,566
Likes: 37
the mount you have shown in one of your pics is for a car application. on a 72 nova, it still uses a 3 bolt rubber mount correct? if so keep your v8 frame mounts and find some pickup 250 engine mounts. 292's use a simulair mount, with a v8 style rubber mount. only the driverside will fit from a 292 onto a 250. the pass is different. all this keeps much better control of the motor, less flexing. these engine mounts are found in 63- atleast 72 chevy pickups. tom


Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
Information and parts www.12bolt.com

Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
Can you post some pics of these V-8 mounts & truck mounts?
Thanks


12 port SDS EFI
Joined: Apr 2004
Posts: 3,566
Likes: 37
1000 Post Club
****
Online Content
1000 Post Club
****
Joined: Apr 2004
Posts: 3,566
Likes: 37
it sometimes seems like i have to do all the leg work. here are some pic's of 292 mounts that accept v8 mounts. all 292's used them, only truck 250's had mounts simuliar to these also.

. tom


Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
Information and parts www.12bolt.com

Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
Thanks Tom!!!
Another question,,, with the 292/250 truck (thinner rubber) mounts, does the engine sit at the same height as the thick rubber mounts?


12 port SDS EFI
Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
RevOD ,,,here is a 292 manifold for sale. 2.5" outlet.

Ebay,,,,,Item number: 280041908594


12 port SDS EFI
Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Yeah man that deffenitly looks like it flows a ton better. Not to mention with the horizontal exit it should make turbo hookup a bit easier. Ill have to call a few local junk yards to see if anyone has one. I can only imaging shpping would be a bit much on that.

Joined: Aug 2006
Posts: 232
W
Contributor
*****
Offline
Contributor
*****
W
Joined: Aug 2006
Posts: 232
When the 292 Series 40 truck manifold is installed on a 250 with a manual transmission, will the attached exhaust down pipe interfere with the clutch linkage attached to the engine block? Is there a resolution?

Thanks

Joined: Dec 2000
Posts: 3,332
J
1000 Post Club
*****
Offline
1000 Post Club
*****
J
Joined: Dec 2000
Posts: 3,332
W;

It may I don't know, as I've only used them on the 292 engine.

I would think the Muffler Shop could "give her a bend or two".

Unless your building a "really hot" 250 engine, just use the stock one, as the only difference in at 'high' RPM. The "really hot" ones use headers to get even more etc.

Good luck. \:\)


John M., I.I. #3370

"There are no shortcuts to any place worth going". -Anon
Joined: Oct 2006
Posts: 116
Contributor
Offline
Contributor
Joined: Oct 2006
Posts: 116
RevOD:
Would you please post a picture of the grooved balancer for us to check out. I'd like to get one made too. I'd like to find a dual 4bbl Offy intake for my 250 for two single barrel throttle bodies like Jim Linders truck.

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Yeah I will try and remember to snap some pics when I get off work this morning.

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Here are those pics of the balancer. You can see the stock timing mark and the new one I located and marked.



Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Well now I just need to get motivated to take the lift over to my dads place to pull my v-8 and prep the engine bay for the 6.

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Well the V8 is out and the engine bay is ready to be prepped to drop in the 6....



Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
I got the drain fitting installed int he oil pan today. Used a -8an bulkhead fitting in the side of the pan. -8an should be large enough right?

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Well the head is Cracked... shop just got dome looking at it to rebuild it. I guess the search is on for another head.

Joined: Apr 2004
Posts: 3,566
Likes: 37
1000 Post Club
****
Online Content
1000 Post Club
****
Joined: Apr 2004
Posts: 3,566
Likes: 37
let me know if you can't find one. tom


Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
Information and parts www.12bolt.com

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Might be good news... found out a friend of my fathers just happens to have a 15K mile 230 (i believe) from a 65 chevelle. Its the original motor was pulled and stored inside. Contacting him tomorrow about it. If it turns out to be a 250 ill swap the whole thing in.

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Eh shot down on the motor so were having a head I got for free rebuilt.

Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
RevOD,

I was wondering if you had the damper turned down on the center section, so the damper sits closer the the timeing cover?
Thanks

MBHD


12 port SDS EFI
Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
I did have it turned down on the center section or the groove would not line up.

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Here is is after the install before we pulled the head. Tons of room for the turbo and a small FMIC too. I also ordered a Pertronix kit for the distributor.



Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
A few more things are on the way. A Boost gauge and cup, an LC-1 Wideband Controller that will power my already installed Autometer narrowband gauge for quick reference and a Moates "O" Meter for more accurate info and data logging.

The machine shop starts work on the head Monday so hopefully that will all be squared away within the week and I can fire this car up and drive it. Im stoked to get the turbo housing and flange back so I can start welding up the turbo exhaust.

I am going to just use the stock manifold and attempt to make a tight enough bend.

Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
Sounds good!
I would suggest using a stainless tubing for your u-bent part. Using a plain steel will corrode in no time & get weak.
You can buy thick wall stainless u-bends on Ebay

With schedule 40 or so,, thick wall tubing , it will support the turbo much better.
They are already chamfered & ready to weld.

You can buy schedule 40 stainless tubing or plain steel from McMaster Carr.http://www.mcmaster.com/
They have different angled pieces to fab your U-bend pipe.
Or get some ideas here: http://www.sdsefi.com/tech.html

Fabricating a Turbo Header

Should not be too complicated.

Any more Q's,, let me know, goodluck!

MBHD


12 port SDS EFI
Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Yeah ive though about that problem is I don't have a setup to weld aluminum. Although I have thought about using Steel Sch40 weld els and pipe for it.

Joined: Aug 2006
Posts: 401
R
RevOD Offline OP
Contributor
OP Offline
Contributor
R
Joined: Aug 2006
Posts: 401
Well as I dont have the setup to do stainless I did start on making the header with Sch.40 Iron Weld Els. A bit heavy but should work fine. Then eventually I can build one with stainless.

Pic is a bit big but I didnt have to to resize it.
http://www.odiesgarage.com/Blog/Nova/Turbo_013.JPG

Joined: Sep 2004
Posts: 5,840
Likes: 1
M
1000 Post Club
***
Offline
1000 Post Club
***
M
Joined: Sep 2004
Posts: 5,840
Likes: 1
Looks good!
The schedule 40 weld els , are supposed to work fine, + it needs to be thick (which they are) to help support the turbo if you do not make any other brackets for support.

MBHD


12 port SDS EFI
Page 2 of 8 1 2 3 4 5 6 7 8

Moderated by  stock49, Twisted6, will6er 

Link Copied to Clipboard
Who's Online Now
0 members (), 125 guests, and 27 robots.
Key: Admin, Global Mod, Mod
Newest Members
Hairyclive, THarper, crash, ocean1907, Jabez House
6,816 Registered Users
Sponsored Advertisement
Sponsored Advertisement
This Space is Available
Powered by UBB.threads™ PHP Forum Software 7.7.5