intake manifold question

J

javier302

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Nov 8, 2006

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Nov 12, 2006

#1

• Nov 12, 2006

• #1

i just bought on ebay stock upper and lower intake manifold (5 bucks plushipping), i was thinking about getting a dremel and try to make all the holes bigger (bore) and if i mess it up, i still have mine to put back, will this give me any prformance? how much should i take off? anyone tried before?

thanks
javier
86 gt 5sp

 

Roland69

Sergeant Tangnet

Sep 17, 2005

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Nov 12, 2006

#2

• Nov 12, 2006

• #2

bolt them togeather and try some acid porting..

 

Darkwriter77

Resident Ranting Negative Nancy

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#3

• Nov 12, 2006

• #3

Send 'em to TMoss and have 'em done right. I hear nothin' but good things about his work.

 

J

javier302

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#4

• Nov 12, 2006

• #4

couple of questions about that
where is it?
how much, around...
and how much performance? is it worth it?

thanks

 

V

v8only

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Jul 3, 2003

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#5

• Nov 13, 2006

• #5

tmoss is a user name and he posts on this board. Just send tmoss a pm. he's also got a site I believe that will show you step by step how to port it yourself. My buddy has done several of them with astonishing results.

 

Maryland Stang

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Aug 21, 2002

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#6

• Nov 13, 2006

• #6

Unless you know how to puddle weld aluminum I wouldn't even bother. The number 1 and 5 runners need to be puddle welded before you can port them or you will break through the runner. Ironically enough it's the number 1 and 5 runners that need the porting the most.

Send it to TMoss before you end up with scrap aluminum.

 

jrichker

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#7

• Nov 13, 2006

• #7

Try http://www.tmossporting.com for the ported parts & lots of good info.

See http://www.diyporting.com/ for do it yourself porting information. You find that the light duty dremel isn't really up to the job. You need a heavy duty one or an air powered die grinder.

 

G

GTOreturns

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Oct 1, 2003

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West Coast Best Coast

Nov 13, 2006

#8

• Nov 13, 2006

• #8

Put it back on Ebay and buy a Cobra.

 

J

javier302

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#9

• Nov 13, 2006

• #9

thanks for the info, anyone know how much hp/tq gain you can get out of these, is it worth it, or should i put it back on ebay?

 

G

GTOreturns

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Nov 13, 2006

#10

• Nov 13, 2006

• #10

javier302 said:

thanks for the info, anyone know how much hp/tq gain you can get out of these, is it worth it, or should i put it back on ebay?

Click to expand...

The stock intake falls on its face at 4000RPM. The Cobra is fairly cheap in price and gives "FAR" better performance. In low end torque and up high!!

 

Flavadave4

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Nov 28, 2003

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Nov 13, 2006

#11

• Nov 13, 2006

• #11

send it to Tmoss......he did mine and did a great job, super nice guy too.

 

V

v8only

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#12

• Nov 13, 2006

• #12

I believe it can be jbwelded when you break through, that's what My friend has been doing with no issues.

 

tmoss

Gettin Wired

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#13

• Nov 13, 2006

• #13

After LOTS of experience, you can get them to flow just as well with no welding ( I used to use small puddle welds, but have not for about 2 years) - but you have to know where and how much to cut.

I now have a flow bench and will be experimenting with porting designs on both the lower and upper with documented results.

 

tmoss

Gettin Wired

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#14

• Nov 13, 2006

• #14

javier302 said:

thanks for the info, anyone know how much hp/tq gain you can get out of these, is it worth it, or should i put it back on ebay?

Click to expand...

250-260RWHP/300+RWTQ on most well matched mild combos. Highest so far is cleanLX - 280RWHP/330RWTQ with a stock length upper and 292/325 with one shortened ~1.75". There are lots of data and dynos on my website.

 

tmoss

Gettin Wired

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#15

• Nov 13, 2006

• #15

javier302 said:

thanks for the info, anyone know how much hp/tq gain you can get out of these, is it worth it, or should i put it back on ebay?

Click to expand...

250-260RWHP/300+RWTQ on most well matched mild combos. Highest so far is cleanLX - 280RWHP/330RWTQ with a stock length upper and 292/325 with one shortened ~1.75". There are lots of data and dynos on my website.