ZR-1 Net Registry Forums

ZR-1 Net Registry Forums (http://zr1.net/forum/index.php)
-   C4 ZR-1 Technical Postings (http://zr1.net/forum/forumdisplay.php?f=9)
-   -   63mm TB (http://zr1.net/forum/showthread.php?t=22441)

LGAFF 03-06-2014 05:56 PM

63mm TB
 
Got my Experimental Rochester TB machined to 63MM.....blades to be made next

http://i134.photobucket.com/albums/q...f/DSCN5621.jpg

LGAFF 03-19-2014 11:13 PM

Re: 63mm TB
 
Should get my TB and extra plates back tomorrow!!!

Blue Flame Restorations 03-20-2014 01:18 AM

Re: 63mm TB
 
Can't wait to see how it turns out, Lee.

LGAFF 03-20-2014 06:23 PM

Re: 63mm TB
 
Pretty good fit: Kinsler did the blades for me and fitted them...

http://i134.photobucket.com/albums/q...f/DSCN5643.jpg

Jagdpanzer 03-20-2014 06:33 PM

Re: 63mm TB
 
Excelent work Lee.
Are the throttle blades off the shelf or custom made?

Schrade 03-20-2014 06:50 PM

Re: 63mm TB
 
Q's:


Is there a flow rating for stock?
How 'bout for 63mm?
And with 63mm, where's the bottleneck inflow THEN, with stock non-ported plenum / IH's?

AND...

how well do they hold vac @ idle?

When I re-assembled my TB after top end housecleaning, I could see no light around the blades, BUT, when I had the 2nd TB butterflies blocked with the restrictor gasket, I saw a BIG difference in steadiness of idle RPM, attributable ONLY to air leaking by sec butterflies that LOOKED sealed...

LGAFF 03-20-2014 06:51 PM

Re: 63mm TB
 
2.501 is the bore and plates are 2.496 with a 10 degree backcut; these are custom

LGAFF 03-20-2014 06:55 PM

Re: 63mm TB
 
I will need to do some testing on this to see how it idles; Kinsler seemed comfortable with the fit

LGAFF 03-20-2014 06:59 PM

Re: 63mm TB
 
Everyone might not know this but throttle plates are not round....the centers diameter is smaller and that is the quoted measurement.....

The center diameter is the 2.496....top to bottom its 2.55 to account for the pitch/slant of the blade

LGAFF 03-20-2014 07:19 PM

Re: 63mm TB
 
the DAG is what seals the plate, I will be coating my TB in a similar product, coating opposing sides so as not to interfere with the blades opening


All times are GMT -4. The time now is 09:04 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2025