curtis
Well-known member
Trying to make this area technical again.
First Chris Plesko and Pivvay started this fiasco years ago, If you never heard of Pivvay aka shifted thinking do a search here Chris and his car Pivvay were one of the founders around these parts newbez....I found the results graph here
click me for picture
Now over a year ago Dave Buschur started it again on the evo stuff....Later he made friends again with Marco at Magnus and after just reading through the new edited thread seems like he make a really fair unbiased attempt to level the playing field.
click me
Now if you just read through that the Kanasi and Hypertune seemed to fair better I really think its something with the angled mount on the throttle body. Two I wish he would have tested is the Thailand southeast Asia angled t-body mount intake on ebay and a Hawver. The Hawver is a normal mount but plenum and runner design is about the same. I had to weld up the ebay type last summer for a local that split it racing Toretto at our local track. /ubbthreads/images/graemlins/grin.gif The plenum and the lower are both cast but cast separately then tigged together. As usual the manufacturer made pretty welds and didn't worry about penetration, I guess there married and use to it. Again another /ubbthreads/images/graemlins/grin.gif
Reason for this I've been watching for a manifold to finish everything I need for the motor. I'm still going to build a cyclone style one with long / short design but need the car done first and this will give me something I can test against. A week or so ago a local started parting out his 10 second car and I picked up the Hawver he had. Now I have more than enough t bodies in the shop to use, a bunch of 65mm ford units, 3 dual butterfly ford units, a Q-45 90mm and a stocker. Even have the idle motor area milled off of a stocker so If need be I can weld it to the bottom of the twin butterfly. I really want to use one of the Ford units its two 57mm butterflies and is progressive rate on the secondary so throttle response will be about the same at idle and just tooling around in traffic but at about 30% the second one opens to 100% when the primary does so mid range response and downshifts should be kick ass.
Now to mount this on the Hawver I would need to machine the inlet to at least 81mm's and machine 4 new holes, Planning on making the holes on the Q45 bolt center arrangement so if I ever or the next owner wants to use that it would be done.
Now the question is If I machine a flange for the twin butterfly ford and have it mount at 45 degrees + or - a little for the IC pipes then machine a flange for the original t-body mount do you think I should just go from the oval on the ford to a round 90mm or stay at the 81mm. I know it sound anals and not that much but going from 81 to 90mm is alot of surface area when your talking airflow.
Staying at the 80 is more velocity compared to the 90 but by having the throttle body angled more like the HKS or the Hypertune I'm hoping to even out / balance the runners. I really think thats the secret to those to manifolds. But maybe the loss in velocity and the air going turbulent is a good thing. I don't have a flow bench local at my disposal but I could just machine out two different sets of flanges and build two and ship them off to Chris to test.... but large ovals to round holes in a bend is a pain in the ass to bend and fabricate. Kind of hoping someone has remote mounted a t-body before and has some input. If not no big deal.
Hope you enjoyed the links above and here's the Pivvay site click me
First Chris Plesko and Pivvay started this fiasco years ago, If you never heard of Pivvay aka shifted thinking do a search here Chris and his car Pivvay were one of the founders around these parts newbez....I found the results graph here
click me for picture
Now over a year ago Dave Buschur started it again on the evo stuff....Later he made friends again with Marco at Magnus and after just reading through the new edited thread seems like he make a really fair unbiased attempt to level the playing field.
click me
Now if you just read through that the Kanasi and Hypertune seemed to fair better I really think its something with the angled mount on the throttle body. Two I wish he would have tested is the Thailand southeast Asia angled t-body mount intake on ebay and a Hawver. The Hawver is a normal mount but plenum and runner design is about the same. I had to weld up the ebay type last summer for a local that split it racing Toretto at our local track. /ubbthreads/images/graemlins/grin.gif The plenum and the lower are both cast but cast separately then tigged together. As usual the manufacturer made pretty welds and didn't worry about penetration, I guess there married and use to it. Again another /ubbthreads/images/graemlins/grin.gif
Reason for this I've been watching for a manifold to finish everything I need for the motor. I'm still going to build a cyclone style one with long / short design but need the car done first and this will give me something I can test against. A week or so ago a local started parting out his 10 second car and I picked up the Hawver he had. Now I have more than enough t bodies in the shop to use, a bunch of 65mm ford units, 3 dual butterfly ford units, a Q-45 90mm and a stocker. Even have the idle motor area milled off of a stocker so If need be I can weld it to the bottom of the twin butterfly. I really want to use one of the Ford units its two 57mm butterflies and is progressive rate on the secondary so throttle response will be about the same at idle and just tooling around in traffic but at about 30% the second one opens to 100% when the primary does so mid range response and downshifts should be kick ass.
Now to mount this on the Hawver I would need to machine the inlet to at least 81mm's and machine 4 new holes, Planning on making the holes on the Q45 bolt center arrangement so if I ever or the next owner wants to use that it would be done.
Now the question is If I machine a flange for the twin butterfly ford and have it mount at 45 degrees + or - a little for the IC pipes then machine a flange for the original t-body mount do you think I should just go from the oval on the ford to a round 90mm or stay at the 81mm. I know it sound anals and not that much but going from 81 to 90mm is alot of surface area when your talking airflow.
Staying at the 80 is more velocity compared to the 90 but by having the throttle body angled more like the HKS or the Hypertune I'm hoping to even out / balance the runners. I really think thats the secret to those to manifolds. But maybe the loss in velocity and the air going turbulent is a good thing. I don't have a flow bench local at my disposal but I could just machine out two different sets of flanges and build two and ship them off to Chris to test.... but large ovals to round holes in a bend is a pain in the ass to bend and fabricate. Kind of hoping someone has remote mounted a t-body before and has some input. If not no big deal.
Hope you enjoyed the links above and here's the Pivvay site click me