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Jun 9, 2005 | 01:02 AM

#11

vanillagorilla

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From: Arizona Bay

Quote:

Originally Posted by BlownChevy

There could be allot to the 8rwhp gain. Maybe not weather, but an 8rwhp gain is not really measurable IMO. I want to see 20-25 rwhp from something before I will believe it is an honest gain. If you are not increasing the size the opening then there is no way it is going to gain that much. Even the 80mm BBK on a N/A motor only made 12 rwhp more....Sorry if I doubt the Ported TB theory, I just have not seen hard proof that it is worth it.

I agree, 8hp isn't much, and especially on only 1 car, 1 day, 1 dude etc. I'm going to use the handy search button and see what's up.

I would think you could get 20rwhp gain if it were a heads, big cam, big inch, engine with a stock TB.

But like I said, the throttle shaft is milled considerably and even though the diameter of the TB isn't increase the effective flow area is. Drag over a cylidrical shape (throttle shaft) is unbelievably terrible, especially at higher Reynold's numbers like at WOT. Eliminating the drag will allow more quite a bit more flow.

I know thining the throttle shaft works on carbs. It's tried and true, but I would think the same would apply for our TB's.

At any rate the polishing looks pretty.

Jun 9, 2005 | 01:05 AM

#12

BlownChevy

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From: Chatsworth, CA

Quote:

Originally Posted by vanillagorilla

I agree, 8hp isn't much, and especially on only 1 car, 1 day, 1 dude etc. I'm going to use the handy search button and see what's up.

I would think you could get 20rwhp gain if it were a heads, big cam, big inch, engine with a stock TB.

But like I said, the throttle shaft is milled considerably and even though the diameter of the TB isn't increase the effective flow area is. Drag over a cylidrical shape (throttle shaft) is unbelievable terrible, especially at higher Reynold's numbers like at WOT. Eliminating the drag and will allow more quite a bit more flow.

I know thining the throttle shaft works on carbs. It's tried and true, but I would think the same would apply for our TB's.

At any rate the polishing looks pretty.

Oh sure drop that damn engamaneer crap on us.......

I however agree with you on the drag over a cylindrical shape, I can see it making a difference @ WOT where the higher Reynold's numbers are more apparent.......I guess the jury is still out on this one...
I am off to bed, my brain hurts.

Jun 9, 2005 | 01:18 AM

#13

vanillagorilla

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From: Arizona Bay

Here's something I found:

https://ls1tech.com/forums/showthrea...+throttle+body

It seems to be well recieved with those crazy f-body guys.

Here's one with the man himself:

https://ls1tech.com/forums/showthrea...+throttle+body

Jun 9, 2005 | 08:41 AM

#14

BLACKND

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From: Alvin,TX

Well, I've got my extra throttle body and its a drive by wire unit, thanks blownchevy. It was sent off to Shaner to be ported. I should have it back next week hopefully. I will try to get before and after dyno's when I get it back to see if there were any gains or not.