intake elbows
11-05-2010, 01:53 AM
#1
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intake elbows im looking into getting a elbow and wanted to go with the low profile edelbrock elbow but i want to run my 78 tb and it only comes in a 90mm can i run the 78 on a 90 flange and if so will it hurt in performance...
11-05-2010, 04:01 AM
#2
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As long as it physically seals on the flange it will be fine.
There is little need for TB's as large as 90mm unless you are making silly HP ( ie well well over 1000bhp )
There is little need for TB's as large as 90mm unless you are making silly HP ( ie well well over 1000bhp )
11-05-2010, 04:28 AM
#3
yes you can use a smaller tb its when you go over 90mm there's and issue but i also will tell you gmhightech just did a dyno comparison on elbow great article and they made hp differences noticeable too like 15-25 hp check it out or if it doesnt matter thank good luck
11-05-2010, 04:41 AM
#4
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boosted, 90mm is excessive for most builds
11-05-2010, 05:30 AM
#5
Yeah it really depends if its forced induction or not. GM hightech did a comparison between a factory plastic L76 intake, and the edelbrock crab style with elbow, and the L76 won, but it was on a N/A application, so it could have been totally backwards if it was on a turbo motor, who knows. I would like to see a comparison between a FAST 90 and an edelbrock with 90mm elbow and TB on a turbo motor, to see the dyno differences.