Home Forum Gallery Support  
Register FAQ Advertisers Search Today's Posts Mark Forums Read

Go Back > >


Superformance GT40s Sponsored by Superformance.

Thread Tools Display Modes
Old 3rd May 2017, 01:37 AM   #21
I Have No Life
United States
Join Date: Jun 2007
Location: Sand Point, WA
GT40: CAV - sold.....
Posts: 2,695
Re: Webers

Gus, the 48IDA's will work well on a 402.

There are some initial baseline jet setting listed in Pat Braden's Weber book I believe. I highly recommend this book, available on Amazon. It explains the operation of IDA's in simple and understandable terms. It's not just jet setting to get right - it's also chokes and the particular configuration of 48IDA. Not all 48IDA's are the same, they vary dramatically in terms of the progression holes drilled in the throats. To get your 402 to run right you have to have matching IDA's (same progression holes) with the right size and spacing of the progression holes.

Webers get a bad name because people a) don't have matching sets, b) have the wrong set within the family (again, not all 48 IDA's are the same), c) choke them improperly (most often not enough, resulting in poor flow and atomization), and d) don't set up the linkage geometry properly. Start with these basics then fine tune the particular jet settings.

Good luck!
Cliffbeer2 is offline   Reply With Quote
Old 3rd May 2017, 12:17 PM   #22
Gus Meyjes's Avatar
Gus Meyjes
A Tenth
United States
Join Date: Apr 2008
Location: USA
GT40: SPF 2222
Posts: 139
Re: Webers

Thanks Cliff. I have worked with Webers for years. I understand what you're saying. That's why I was wondering about any baseline numbers. I think I have that book somewhere. I'll check if it has any info.
Gus Meyjes is offline   Reply With Quote

chokes/venturis, initial, jetting, suggestions, webers

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

All times are GMT -4. The time now is 10:39 PM.