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 Intake / Carb and Fuel Delivery Tech
 EGR Intake vs Pre-EGR
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GtoGuy32
Cochise

USA
824 Posts

Posted - 12 Mar 2017 :  11:41:04 PM  Show Profile  Reply with Quote
Hi guys,

I have a 77 Trans Am W72 Engine. On that engine, I have the stock EGR style intake manifold with partial openings cutout for the carburetor butterflies.

How does this intake compare to a pre-EGR?

Is it worth swapping out to gain a few ponies on a stock to slightly modified engine?

Thanks
Dave

Admin
Ye Olde Webmaster

813 Posts

Posted - 13 Mar 2017 :  11:08:22 AM  Show Profile  Reply with Quote
Dave--I use the same intake on my TA's engine. Dave Riberio who ran a TA in stock class used one as well and held the record for his class with it on a 400, 6.6 TA engine. I don't believe any power will be lost by using it compared to using an earlier non-egr OEM intake.

Bill

"Dedicated to keeping the classic Pontiac engine alive."

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GtoGuy32
Cochise

USA
824 Posts

Posted - 13 Mar 2017 :  7:11:48 PM  Show Profile  Reply with Quote
Bill,

I appreciate the feedback. I was thinking the same, but didn't have any data to back it up. I'll keep the intake on for now!
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Blued and Painted
Chief PONTIAC

USA
3277 Posts

Posted - 14 Mar 2017 :  12:26:42 AM  Show Profile  Reply with Quote
IIR Mr cliff posted the difference was minimal. You might shoot him an e-mail.
Plus there would be that mis-match exhaust crossover to deal with. Not a huge deal but a bit of a head scratcher.


Bull Nose Formula, 461, TH400/ 3.08 8.5 / R44TS.
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Phil
The Great White Buffalo

USA
7129 Posts

Posted - 14 Mar 2017 :  10:57:59 AM  Show Profile  Reply with Quote
The only drawback is it's an Anvil.

Bowties are for Pee-wee Herman. "Chevy": even the name sounds cheap, but not as cheap as your Pontiac will be with an LS transplant.
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GtoGuy32
Cochise

USA
824 Posts

Posted - 14 Mar 2017 :  12:26:35 PM  Show Profile  Reply with Quote
quote:
Originally posted by Blued and Painted

IIR Mr cliff posted the difference was minimal. You might shoot him an e-mail.
Plus there would be that mis-match exhaust crossover to deal with. Not a huge deal but a bit of a head scratcher.



Ahhh...Good point. I haven't taken the intake off yet to see what that looks like. This is my first smog engine....

All this said, I am going to leave it. I have plans for a better setup to go in later this year, if the funds are in place....we'll see.
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Blued and Painted
Chief PONTIAC

USA
3277 Posts

Posted - 14 Mar 2017 :  1:28:07 PM  Show Profile  Reply with Quote
quote:
Originally posted by Phil

it's an Anvil.

Bla ha ha ha.
It is a serious chunk of iron. 43 lbs if i recall.
Not easy to lean over a fender and set in place.


Bull Nose Formula, 461, TH400/ 3.08 8.5 / R44TS.
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