a new intake manifold

Post by **Efratech** » Mon Sep 05, 2005 4:31 pm

Hi

My old intake manifold got craked a couple of times due the material being thin...

Well the manifold is off... is craked again...

i already have the tubes to make new intake runners (1/4" of thick)... later ill get the plenum (wich will now have a cylindrical shape).

Ill try to take pics of the process.

Efrain.

Stefan · Post by **Stefan** » Mon Sep 05, 2005 9:10 pm

Efrain, glad to see your still developing your car.

1/4" thick aluminium is a nice thickness for the manifold. When you get it made bare in mind that the welds will be the weakest part of the manifold as the welding process removes any heat treatment that the plate has.
So make sure those welds are top notch!

I can keep an eye on this now I've replied

Stef

Post by **Efratech** » Wed Sep 07, 2005 1:54 pm

hi Stef,

yeh, its always been developed. :P

Yesterday i bought the tube for the plenum, as said is cylindrical and it has 3.5" of diameter and 1/4 of inch of thickness.

Thanks for the advise on the welds, i've a friend that works on a industrial facility and they have an excelent TIG welder there, he will be doing that job.

Unfortunally it seems that my manifold will be built next week

this weekend we have a drag racing tournament, and we *the shop* will be bringing 3 cars (a CRX turbo, Civic Type R turbo, Integra Type R turbo), and all 3 have to be tuned/mapped in this next couple of days. Today some nice turbo spec cams will be installed on the CRX and then to the dyno. last time it pumped 413 whp. we're expecting 500+ whp from the Civic and around 380 from the Integra.

I want a turbo

Efrain.

Post by **Efratech** » Tue Sep 13, 2005 4:16 am

Sorry for the no updates.

My friend that works on the industrial facility is currently on vacation for 2 weeks.

My current manifold is already fixed, 'cos i cant throw the car at the shop for 2 weeks just because of that. I just went to the shop after work and installed the manifold and it idles fine but i dont know why it started leaking fuel right on the fuel filter (near the right back wheel), i got mad (8PM) and left the car at the shop, its gonna be checked tomorrow by one of the guys.

The new manifold will be made slowly and when the old one gets cracked again it will be replaced.

BTW its gonna be mapped this weekend... i hope

Efrain.

Post by **Efratech** » Tue Sep 13, 2005 4:19 am

PS. the Integra turbo made 358 WHP at 20 psi of boost. the CRX was left intact and we won for the 3rd time in a row 1st place on the FWD class (street legal and semi-slicks tyres) with a 12.0 at 1/4 of mile. the Civic had problems with the ECU before i could be tuned.

MMamdouh · Post by **MMamdouh** » Tue Sep 13, 2005 1:13 pm

why don't you put the new intake as soon as it finished then do the mapping??

the new intake is better than the old one as you said and i suppose you will need to remap the car with the new intake anyways... right?

MMamdouh

Post by **Efratech** » Tue Sep 13, 2005 1:29 pm

Is gonna be mapped because it needs to, right now i've the base ignition of the 1.8 non vtec ecu, there're some nasty holes and i dont want the engine to be damaged because of bad ignition map.

Yes, maybe it will need a remap, but the new manifold will retain the basic dimensions of the old one. So basicly the only diference are stronger materials and the cylindrical plenum.

Efrain

Post by **Efratech** » Wed Sep 14, 2005 3:27 pm

the leak is fixed so i have the car back, it purrrs like a kitty now at idle.