how the heck is the 4-1 supposed to fit? i have tried and tried for a few hours now and i have no idea how my 4-1 header could even come close to fitting into place. is there a certain way to slide it in? or must u take the a/c, & radiator off? i put a test cat in today and have a brand new header waiting to be put on but i have no clue.


Modified by orchidrider at 5:32 PM 4/7/2008


Modified by Dogginator at 5:40 PM 4/12/2008

 

take out the cooling fan. an teh a/c fan. an see how that goes. do it would caution. an dont rush it. if so. you may end up breaking things

 

if its for a b series Try jacking the car up from the front as high as you can then slide the header under the engine bay, turn the header so the exhaust port is facing the pass. tire, then reach from up top and pull it from that side slide it up and fidle with it around your clutch slave valve then turn it in and place it on the two studs you might have to pull the radiator off the hinge to move it back a couple of cm. but you dont have to take it out ive done this a couple of times in my 98'' gsr with the dc 4-1. hope it helps when you picture this in your head

 

remove your front crossmember, wich btw you will have to notch in order to make the 4-1 fit, not a very recommendable option, the way to go is to buy a traction bar in order to get the proper clearance but then again it is a bit expensive, but hell a lot better then notchin

 

ok so a traction bar takes the place of the stock crossmember? and that makes sense and would be a breeze getting it installed that way...i could get a traction bar off ebay and replace it.

 

u have a DA dont u?

 

ohh **** my bad every one..91 DA b18a

 

yea man we cant put 4-1 headers in our car unless u cut a u shape cut out of the crossmember or we get a performance traction bar. sucks i no.

 

so is this what i need to achieve clearance? does this take the place of that crossmember? if not what is it that i need?

 

this is what you need http://www.full-race.com/catal...d31d6

 

dude its a pian in the ***. me and friend spent about 20 min messing around and then we decided to take of the fan shroud and it was alot easier.

 

i got the a/c and **** in the way too..but idk ill check it over and give it a shot

 

AHH! I have the same problem. I've been at at it for over an hour and the bad boy doesnt want to come off. Maybe ill just have to take off the fan. More feedback!

 

what if i were to take the crossmember off, notch it out..then put some reinforcement plating all along the notch? i have a welder and an not a newbie at fabricating...i have a fully built prerunner done by myself

 

so would notching the cross member and reinforcing it with plating be sufficient?

 

it can hold a little longer but in the end it wont be sufficient, trust me, get a traction bar, im telling you from experience

 

It can be done without removing anything if the P/S is already off.

Otherwise, just remove a fan.

 

shoudnt be that hard... remove the fan just like some people have said