joni_titi

Hi , first you may have some difficultie to read me because I have a bad english.

So I had a b18b P75 intake manifold laying around hand with the advice of someone who have did it before I decide to polish my intake. I use 80 sandpaper with the tool on my drawing and a drill. I narowed the divisor between the runner just a little bit to smooth the casting.

I have a question : Is it a good idea to use 120 grit sand paper to make my intake more polish ?


So i'm waiting for your com'Z

ivan93egreppin210

are you polishing it or porting/removing material?

joni_titi

like I said in my first post I only remove little bit of material between each runner so I only polish it

BEATurBOYS

how did you take that apart? and plan on putting it back together?

EGdriva

Most likely, he's gonna weld it back and smooth out the welds..

Jimmy

iTrader: (5)

Your english isn't bad

In for finished pics

blackGSRcoupe94

did the same to my 1st Skunk2 manifold, cleaned the casting marks out and "sharpened" the runner dividers, cleaned it out and tig welded it back together, re-dyno'd it and made 7whp/2ftlbs more than before. just dont "polish" it fully theres no need. but i would indeed clean it up a bit more.

mouab18c1

iTrader: (5)

looking good!

joni_titi

NICEEEE, And on what setup did you see this great gain ?

Which grit of sandpaper did you use ?

joni_titi

I decide to go with the 120 sandpaper. Now the intake is in a shop to be weld. I gonna post pic tomorow.

super jdm yo

cool stuff can't wait to see the finished product

joni_titi

Sorry for the delay the shop take really long time to weld it but finally I got it. I have a question fo you, the weld do not penetrate perfectly the aluminium so inside of the plenum there is a "slot" all the long of the weld (you can see it in the picture), do you think I should fill it with a paste like jb weld ??

Thank you and please give me your opinion on my question.

http://jbweld.net/products/jbweld.php

frost_0ne

nice id fill it with a lil jb weld on the inner part of the manifold just to smooth it out then sand it

MD426

Doesn't look to be the best welds, If you use JB weld make sure it's not too thin, it might crack off and get into the cylinders.

joni_titi

So I decided to use jb weld and now you can see the result once it's sand.

BEATurBOYS

lemme know how it turns out...im cheap and do fabrications myself...so i could do that i think...

teg_95

what is a better bang for your buck. porting and polishing a stock intake mani or buying like a skunk to or blox?

be18see1

buying a blox/sk2 and polishing it yourself!

teg_95

tru that. thanks ive been asking that question for about a month now and no one has giving me a straight awnser...

94VTEC2TONE

im lookin at doin a performer x. having it cut open ported polished and gasket matched

teg_95

yea i didnt know what rout to go thats why i chimed in.

94VTEC2TONE

i have a blox now it makes decent power. skunk2 and blox seem the same to me. from what i hear the performer x is one of the leading manifolds though

teg_95

ae you obd1 or 2. if you are one. did ou have any trouble bolting it right up w/o a CEL

94VTEC2TONE

im obd1 and i dont get trouble codes so im not sure if itll throw em. for some reason the car dont throw codes at all. im diagnoising it soon to see if its been tampered with.

teg_95

ohh ok. let me know