KA manafold idea

[apoorboy]

here is my idea. what i am gong to do is buy a ka flange from jgstools and buy a header off of ebay. I am going to remove the sr flange and replace it with the KA flange. Has any one ever tried this or would this be a bad idea.

[voddka]

Somebody did it with a sr20det manifold, and it worked out, but wouldn't with most. I think it was posted here actually, so just search for it. Z18et manifolds also work for the ka24e The pipes also have to match up to the flange as well, and that's not as easy.

[TrunkMonkey]

are you are refering to the oem manifold? if you plan on sticking with one of the t2small turbos, then go for it. i'm not too sr literate, but you may run into clearance issues if you go with something bigger.

-demetrius

[fiznat]

I thought he was talking about the bling bling SR turbo headers that are on ebay alot?

A welding shop that I called like a month ago was talking about that idea.. he was sayin how he didnt see any problem with it in theory, and how it might turn out to be a pretty cool idea. Personally I wouldnt trust my welding skills and all that, but if you're confident, I dont see why something like this wouldnt work.

[TrunkMonkey]

...but do the sr and ka exhaust ports match up as cleanly as the intake ports do? someone needs to take an sr exhaust gasket and match it up to the ka head or exhaust manifold.

even with a top mount aftermarket manifold, the sr seems to have more room to work with (that's just from eyeballing it). clearing the distributer may also be a problem, depending on where whatever manifold you choose places the turbo. if i'm not mistaken, some sr manifolds place the turbo more forward than the ka manifolds.

-demetrius

[Jonny 290]

yeah, i was looking into picking up one of those $230 megan racing stainless top mount manifolds or something, and hacking the runners off right at the flange and re-welding a KA flange on there

runner spacing should be damn near identical. port size can be shaped by flange grinding.

[apoorboy]

Yep im looking at the stainless steel header that are like 150.00 on ebay. I went ahead and ordered the flange for the ka and i am going to see if any of the shops around happen to have the sr header so that i can see how the ports line up.later

[Jonny 290]

definitely follow up on that, let us know what you find.

[fiznat]

I was thinking about this today instead of studying for finals, and I came up with a couple points.

1. If you're talking about a header like this (http://cgi.ebay.com/ebaymotors...38148), you're going to have trouble finding a place to put an external wastegate. There is no real collector area on that thing... it seems like you're either gonna have to wastegate a single runner (ehhhhhhh) or use an internal wastegated turbo.

2. If you're just gonna cut the flange off, there is no need to limit yourself to only SR turbo manifolds. As long as it fits in the space that's there in the engine bay and has at least semi-similar runner spacing (I dont think they could be THAT far off if its another I4), any manifold would work.

Just some things to think about

[j-z]

i got a better idea! go look on ebay cause they have them for the ka24de now. doesnt look to shabby. i wonder why they didnt show any pics of it with the compressor housing on? looks like it might be kinda close. but i dont think a company with feedback like that would sell something that wouldnt fit. we need some people from here to try these out. to bad they dont sell a matching downpipe.

[Structure240sx]

if ur worried about price you are already at almost how much the jgy mani's are.

i guessu would be using an sr turbo anyway since those manifolds are flanged for t25's unless u plan on getting a $1500 hks turbo to put on that $200 ebay manifold

[apoorboy]

Ok so here is what i have done so far.I have the t26 turbo off of the supra. I also have found a friend to donate me a stainless steel header until i decide what to do. He is also offering to sell it to me because he has been waiting for his sr for almost two years. I went to the JGStools web site and ordered the stage 1 manafold kit which happens to be on sale, so total investment is like $150.00 so far. All i am doing now is waiting for the manifold kit to come in the mail.Also are the jgy mani's. I am not familiar with them.