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-   -   Throttle Body Boring And Porting (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/throttle-body-boring-porting-40885/)

ryosuke_fc 06-22-2004 11:04 PM

That is, for an FC of course.

1Revvin7 06-23-2004 01:37 AM

I can't see it being worth that much money in terms of power increase. A dyno comparison would be nice. Tb looks good though.

l8t apex 06-23-2004 08:37 AM

OK spoke with M.Oswald this morning.Check GB for info and specs.

l8t apex 06-23-2004 08:50 AM

I cant do GB............Sorry.

OK spoke with M.Oswald this morning ,for info and specs.

Primary is .100 larger.Secondary is .095 (close to .100) larger. The shafts are machined to except the custom made larger butteflys and then he used button head screws and there is no screw shaft into air flow.My stock Buttfly were never wide open(FYI)

Using your FD T.B. and you pay and insure your own shipping bothways you can get this work for $325.00

Should he get decent interest I will set him up with Paypal. He said give him 3 days to get each completed. ( Unless he is at a race but he can inform us)

Hey I guess thats beats $ 500 -600.00 !

This is a GB or indvidual price.

1Revvin7 06-23-2004 01:11 PM

I should go measure my 20B throttle body.

setzep 06-27-2004 07:14 PM

Are you going to set it up so all 3 blades open at once right off the bat or make it more progressive?

l8t apex 06-28-2004 10:07 PM


Originally Posted by setzep' date='Jun 27 2004, 07:14 PM
Are you going to set it up so all 3 blades open at once right off the bat or make it more progressive?

standerd transition. I don't know how the system would act (fuel curves) and what mods to the linkage would have to be done. I think you would want some velocity for around town driving over a large transition and volume.

But what can you tell me ? This is the place for sound boarding.

setzep 06-29-2004 07:00 PM

I think I worded it wrong. What I mean is will they all open at once or will the primary open for the first 15-20% throttle movement then the other two after that.



I have my ported cosmo TB set up so only the primary blade opens till 15% throttle movement, after that the 2 secondary blades start to open. I like it much better this way over all 3 opening at the same time. Around town it's much more drivable. It also doesn't take as much fuel cruising down the road.



How does the stock FD TB operate?

1Revvin7 06-29-2004 07:39 PM

Could you ask for or measure the plates for us?

l8t apex 06-29-2004 08:36 PM


Originally Posted by setzep' date='Jun 29 2004, 07:00 PM
I think I worded it wrong. What I mean is will they all open at once or will the primary open for the first 15-20% throttle movement then the other two after that.



I have my ported cosmo TB set up so only the primary blade opens till 15% throttle movement, after that the 2 secondary blades start to open. I like it much better this way over all 3 opening at the same time. Around town it's much more drivable. It also doesn't take as much fuel cruising down the road.



How does the stock FD TB operate?

Well I have to be honest......that concept or application has never come to me so I cant answer intelligently. right now its set up with stock setting ......actually I need to reset everything . Sorry. i 'll post up when I get there.


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