Simple intake question.

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FrumRoll

New Member

Mar 19, 2006

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Mar 26, 2006

#1

• Mar 26, 2006

• #1

Hello,
I've got a basically stock '87 GT, 3:73's, MAF Conversion, MAC Fenderwell, Underdrives, A9P Computer, Off-Road H with Dumps, Smog Delete, A/C Delete, Short Belt, AFPR, probably a few other little things. I've also got a tubular GT-40 upper sitting on the shelf, is it worth getting a ported lower for it from Tmoss and installing as is or is it simply too big and I shouldn't bother until I get a heads and cam package?

Thanks in advance.

 

DeadLifter

Member

Mar 1, 2006

183

2

19

Portland, IN

Mar 26, 2006

#2

• Mar 26, 2006

• #2

If ya got it might as well use it.

 

gt40_2003wes

I did sound a wee bit gay there.

Aug 14, 2005

461

2

48

ky

Mar 26, 2006

#3

• Mar 26, 2006

• #3

yep definately worth it ur intake is the biggest restriction right now then those e7s then the cam.

 

F

FrumRoll

New Member

Mar 19, 2006

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Mar 26, 2006

#4

• Mar 26, 2006

• #4

Thanks for the responses, I wasn't sure if this was a situation where I'd gain a couple horses at like 5000rpm, but lose a bunch of torque at streetable rpms.

 

Euphoric306

New Member

Apr 5, 2004

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Mar 26, 2006

#5

• Mar 26, 2006

• #5

gt40- after intake and heads, IMO exhaust and other inductions like maf and TB are a bigger restriction than the cam. the stock camshaft is even a great mild forced induction cam for a turbo or blower setup running around 350-400 wheel horse.

 

tmoss

Gettin Wired

Founding Member

Jun 28, 2001

7,153

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Saint Louis, MO

Mar 26, 2006

#6

• Mar 26, 2006

• #6

You have stock heads - no need to port a GT40 intake for stock heads - put it on and run it.......

 

F

FrumRoll

New Member

Mar 19, 2006

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Mar 26, 2006

#7

• Mar 26, 2006

• #7

tmoss said:

You have stock heads - no need to port a GT40 intake for stock heads - put it on and run it.......

Click to expand...

Agreed, except I don't have the lower and figured I may as well do it right the first time and grow into it.

 

mustangramair

Member

Feb 24, 2004

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Iowa

Mar 26, 2006

#8

• Mar 26, 2006

• #8

I say put it on if you have it, it's not the difficult. I say port the lower it after you get new H/C/I. If you don't plan on getting a new H/C/I set up in the near future i wouldn't worry about it.

 

tmoss

Gettin Wired

Founding Member

Jun 28, 2001

7,153

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Saint Louis, MO

Mar 26, 2006

#9

• Mar 26, 2006

• #9

Get the lower and use it as-is until you get heads that flow >220cfm - then port it.

 

vikingpower

New Member

Dec 6, 2004

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CWU Ellensburg, WA

Mar 26, 2006

#10

• Mar 26, 2006

• #10

Dont forget to gasket-match the port openings before you install it.

 

tmoss

Gettin Wired

Founding Member

Jun 28, 2001

7,153

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Saint Louis, MO

Mar 26, 2006

#11

• Mar 26, 2006

• #11

no need on a stock E7 head - they are very close as-is.

 

F

FrumRoll

New Member

Mar 19, 2006

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Mar 26, 2006

#12

• Mar 26, 2006

• #12

tmoss said:

Get the lower and use it as-is until you get heads that flow >220cfm - then port it.

Click to expand...

Thanks for the advice, I figure if the guy I'd be sending money to do the porting is telling me not to bother, then I probably should listen.

 

Euphoric306

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Apr 5, 2004

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Mar 27, 2006

#13

• Mar 27, 2006

• #13

umm... is it a stock lower intake? if so, and if you plan on changing heads soon, then i'd port it, but like said, if you have no real plans of doing a head swap then leave it as is, but you're not gonna get much from a gt40 upper with a stock lower

 

F

FrumRoll

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Mar 19, 2006

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Mar 27, 2006

#14

• Mar 27, 2006

• #14

I don't have any lower right now, well I have the stock lower that's on the car. My plan was to purchase a GT40 lower and have TMoss port it, that plan has since changed to purchasing a GT40 lower and installing it as is and getting some porting done after heads and cam somewhere down the road.