Hot-Air intake porting...WHO???

[camaro75racer]

Just wondering who would be the best to talk to about having a hot-air intake ported out? How much does this usually cost? What kind of gains could i look forward to?
Thanks for any replies

 

[Matto]

Hey bro,

I had my buddy that ports heads port mine. Im selling it now for 125.00 just because of the labor I had in it.

Email me if your interested.

Matt
twostout4u@hotmail.com

 

[fireberd350]

It's really a simple job you could do yourself.

Realistically, gains are minimal, but down the road when you start making more mods the porting really becomes valuable. Regardless it's an easy mod that you will get results from, so go ahead and do it!

Also, if you really don't want to do it yourself, take it to any idiot w/ a dremel. Get yourself an 86/7 intake gasket (it's got larger ports) and tell them to port match your intake to the gasket. Then tell them to smooth the hump at the turbo inlet. That's it. Shouldn't cost more than $100, if I had to guess I'd say around $70-$80.

I have pics too if your interested, and I need to look up the part # for the intake gasket.

 

[Boostnitup]

Lanier's in Colorado Springs, Colorado

A port gasket match will do zilch for you IMO.

You need to gut the insides out... from the bottom (or top of the intake), port match from inside out to the Felpro 1200 intake gasket, and then reseal it. The metal on these intakes is flakey and pourous in places... poor contruction in places was noted on my '84 intake. Rewelding, and adding material was required.

To do the above... $250. It was a steal considering the hours put into it... and if you can find someone willing to do it... all that effort... it is the way to go.

 

[Jerryl]

It's really a simple job you could do yourself .....

Agree.
A porting job is simple but not easy.

........ take it to any idiot w/ a dremel .......

Disclaimer;
I am not in any way shape or form stating that the gent in the thread below is an idiot! FAR from it actually!!
If one decides to follow the previously listed advice literally, you could get results like this.
http://www.t6p.com/forums/showthread.php?t=7984

Hope I did not offend anyone, but there is more to porting than "just make it bigger". Dynamics of air flow in a boosted reciprocating internal combustion engine are complex and factors such as balanced velocity and flow need to be considered. There are millions of dollars and countless hours spend each year to study and review the flow characteristics by the Indy, Formula development teams, just to name a few.
Developers like Jaceson Kramer have done some incredible work to design the power plate for the TR market.

As a bigger turbo does not automatically result in performance gains, it is for some of the same reasons a ported intake may not result in gains. The Theory Of Constraint prohibits this. Actually, a non-calculated modification could result in lowered performance based on the goal.


Best of luck!

 

[HOTSIX]

My 2 cents

Get a 86/87 intake and use that.

Mod the doghouse (cut the rear part of it down so it wont hit your turbo) and use 2 1/2" exhaust piping and silicone hose to connect it all up. You could even throw in an RJC performance plate if you wanted. Relocate your TB (use an 87 TB) to the front like an 87 and hook it all up.

The gains are incredible.

Those 'zip tubes' do exactly 'zip' compared to the 87 intake. I modded my stock intake (85) and it didnt do much of anything. Lots of time spent on porting and polishing / gasket matching to the 1200's only to find that the gains were hardly noticeable. I feel I wasted my time.

If you needed I could give you the measurements of the modded doghouse and also take a look at pics I have posted under the thread 'JS kit - Pics' to give you an idea.

This way - if you wanna stay Hotair you can - if you wanna go IC then all you gotta do is add the IC and change your piping. Gives you options to expand later.

 

[FWD turbo]

You may find the folowing threads helpful:

http://www.turbobuick.com/forums/showthread.php?t=162344&highlight=intake+porting

http://www.turbobuick.com/forums/showthread.php?t=151178&highlight=intake+porting

 

[FWD turbo]

Here are some pics of mine. Unfortunately, I painted it before I took the pics, so they didn't come out as clear as they should have. Since there is paint inside, it kind of interferes with your depth perception. The top of the "point" inside, is about an inch lower than the top of the hump in a stock unported intake. There must be a huge difference in airflow. The car makes alot more power pre-boost than it ever did before and spools a hell of alot faster with a bigger turbo. My car is a 5 speed stick. Now even from a roll in 2nd gear, if I steadily roll into the throttle more than half way the car will start to spin it's tires - before the boost hits. It NEVER did that before I ported the inlet. The car has never been to a dyno, so I can't give you any kind of actual numbers. But the car is much more responsive, and makes more power without boost than it ever did before. It is a very noticeable difference. I would say that it is definitely worth the effort.
Enjoy.

 

[FWD turbo]

Here are a couple more. If you would like me to Email you some better, full size pics just give me your address.

 

[Squid4life]

Looks good! Did you do away with the EGR totally?

Squid

 

[racemybuick]

As long as you are a registered user for t6p.com, here is a link I have posted about some work you can do on these intakes, actually, it is a couple pics of what was done!:

http://www.t6p.com/forums/showthread.php?t=6063

The "old" pic is my original intake, and the "new" pic is of an intake I found on ebay, which was ported by I Win Engineering. It was ported to the MS 9033 gaskets (felpro 84-85 intake gasket set), and the hump was ground down to a very smooth point, not as sharp as the one in the pics above, but I do like the work done to that intake...the red is nice too!!

BTW, if and when my car is finished, I think we should all compile pics of the step by steps and see how much in common we all have, and what differences we have. I really just wanna see the pretty pics, but I think we can all benefit from a pictorial about our "hot air's"!

John :smile:

 

[FWD turbo]

Looks good! Did you do away with the EGR totally?

Squid

Thanks. Yes, I completely eliminated the EGR. I had the exhaust port welded shut and then put a plate over it.

 

[FWD turbo]

and the hump was ground down to a very smooth point, not as sharp as the one in the pics above, but I do like the work done to that intake...the red is nice too!!

I really just wanna see the pretty pics, but I think we can all benefit from a pictorial about our "hot air's"!

John :smile:[/QUOTE]


As I explained in the other thread, I completely removed the EGR hump, and then had the left over trench filled in with weld. You'd be really surprised how large that passage is. After that I went back in with the grinder and made a sharp edge. It's hard to tell from the pictures, but the opening is now huge compared to what it was like before. They did some really nice work on your intake as well John, I just wanted to get rid of as much of that hump as possible because IMO it is a major restriction. My butt-dyno agrees with me now. I'm glad you like the red John. Here are a couple of pretty pics for you:

 

[FWD turbo]

For those of you that aren't members of the other site, here are the pics of John's intake. It's some really nice work.

 

[cwmccray]

HOTSIX
I got a 86/87 intake and I could use the measurements on the modded doghouse. I lost out on the "original Turbomotion group buy". But now that it has been proven that the 86/87 intakes work, I got two to mod. It work be nice if the measurement were posted in the HOT AIR section. Even if you do not intercool your car, the benefits from the 86/87 intake are GRRREAT!! If you got the time, pix of the bottom and sides of the dog house would be great. Send to my email: cwmccray_jr@yahoo.com.

Thanks
Chuck
cwmccray_jr@yahoo.com

Get a 86/87 intake and use that.

Mod the doghouse (cut the rear part of it down so it wont hit your turbo) and use 2 1/2" exhaust piping and silicone hose to connect it all up. You could even throw in an RJC performance plate if you wanted. Relocate your TB (use an 87 TB) to the front like an 87 and hook it all up.

The gains are incredible.

Those 'zip tubes' do exactly 'zip' compared to the 87 intake. I modded my stock intake (85) and it didnt do much of anything. Lots of time spent on porting and polishing / gasket matching to the 1200's only to find that the gains were hardly noticeable. I feel I wasted my time.

If you needed I could give you the measurements of the modded doghouse and also take a look at pics I have posted under the thread 'JS kit - Pics' to give you an idea.

This way - if you wanna stay Hotair you can - if you wanna go IC then all you gotta do is add the IC and change your piping. Gives you options to expand later.

 

[SloGN]

i have posted pics of hot-air intake that i recently did. It's in the engine tech forum the thread name is interesting numbers the pics are on page 3

 

[Jerryl]

i have posted pics of hot-air intake that i recently did. It's in the engine tech forum the thread name is interesting numbers the pics are on page 3

GREAT work and THANK YOU for posting it! Double
The answer to the question that I am personally still searching for is "flow distribution".

 

[Boost231]

GREAT work and THANK YOU for posting it! Double
The answer to the question that I am personally still searching for is "flow distribution".

i agree with you 100%, that is the question. if you look at the flow #'s of nicks hotair intake it might not flow the best because there is baffles inside. however the baffles where put there to help with exactly that. I had a intake that was gutted and nothing else done and it didn't preform as well as my none gutted intake. things to think about

 

[Jerryl]

i agree with you 100%, that is the question. if you look at the flow #'s of nicks hotair intake it might not flow the best because there is baffles inside. however the baffles where put there to help with exactly that. I had a intake that was gutted and nothing else done and it didn't preform as well as my none gutted intake. things to think about

Interesting repeat confirmation of the HA intake challenges we face!

 

[SloGN]

well i still left some of the center diveider wall in the intake i did. But what makes you think the air flow isn;t being distrutibed corectly. The 86-87 intake even without a PP don't have a very big swing in changes on the flow bench. But also in the real world they don't have many issues either.


The biggest problem with a HA intake could possibly be the use of alky injection. But if one uses very little alky for cooling only and race fuel there shouldn't be a problem.


The only tru way to know is dyno test a car with 6 EGT's and that will tell the story, But one also will need 6 very finely tuned injectors to make the test repeatable to know for a fact it's airflow and not fuel flow.