II have a friend that does all my aluminum welding, and he just modded my upper intake mani for me. basically I cut it short, radiused the ends of the runners, and had him weld an aluminum tube on the end of it. Capped off the end, and then I cut the flange off of the TB arm and he welded that directly to the other end.

So now, I am able to get to the trunk side spark plugs without removing the manifold and all that other stuff, I can change my cam timing way easier, and can have a oil fill welded to the front valve cover if I so wanted. With shorter runners you are supposed to loose a lil torque down low and gain a hew ponies up top, but I cant really tell the difference. I did this mod right along with porting of the lower manifold and heads.

With this setup you loose the EGR, and will have to relocate the brake booster vacuum line and the other one that branches off of the TB neck.


I told him I would see if anyone else wanted something like this done, becasue he really likes to do stuff for me. So if anyone is interested let me know. I cant' post pics so if someone wants to put a few up for me I will email them to you.

Excellent mod. It's been done a few times already. Apparently the extra flow from removing some of the restrictive parts of the intake makes up for what low RPM torque you "should" lose. Either that or the smaller plenum area does it.
Please post pics!

I can't But if you can I will send em to ya.

It was donr by Chris West something like 7-8 years ago, nothing new - but it really does clean up the top of the motor

------------------
Former West Coast Fiero Employee

New and Pre-Owned Auto Sales Consultant
Power Ford Valencia

quote Originally posted by XzotikGT: I can't But if you can I will send em to ya.

I can post them.

Yeah Chris done it a while ago, but when i asked him to do me up one he said it would run me around $500bux. He is actually where I got the idea from.

Steven, the pics will be there in the morning for ya to post.

the 91-95 intake does have some restrictions to flow inside

http://img.photobucket.com/albums/v435/kohburn/Cam_0895.jpg

like the neck after the throttle body
http://img.photobucket.com/albums/v435/kohburn/Cam_0898.jpg

it gets restricted in the bottom
http://img.photobucket.com/albums/v435/kohburn/Cam_0900.jpg

so i removed all that and welded on 3" tubing
http://img.photobucket.com/albums/v435/kohburn/intake-take2a.jpg

about 50$ in materials and 50$ for the welding to be proffesionally done


the intake I made before that looked better and had a larger volume but it was just not strong enough for boost - worked great NA

Yours is a work of art. It is all smooth and pretty. I am talking about the one that is on the car now.

What's up with that catch can? I need one of those.

[This message has been edited by XzotikGT (edited 10-05-2006).]

ebay - painted it to match - nothing i hate more than oil in the intake

and thanks - this is how the intake makes it sound http://media.putfile.com/new-intake-11

[This message has been edited by Kohburn (edited 10-05-2006).]

Sounds nice. I am still trying to get mine to idle decently. I recently upgraded to a wideband O2 setup with the gauge in the cockpit. So I will be able to get the fueling down soon I hope. I am just having a hard time tracking down what is a tunning issue or a malfunctioning sensor issue. Just yesterday I turned the key to on, and dint start the car and noticed that my IAC motor was buzzing away.

But yeah, I love your setup. I read alot on the other place, and notice you want to go bigger with the turbo. I was thinking the same thing for my setup. I was going to upgred to the 60-1 wheels. Mapped out they do seem to flow more, and have a better effeciency. But that will have to wait until I get my tunning somewhat decent. Nothing worse than when I stop on a hill I have to hold in the clutch, brakes, and somehow blip the gas to keep the car from stalling.

yeah that would be anoying - there is a table int he ecm for a/f at idle that I adjusted to make mine idle nice.

you using the TGP/Dohc program like me? If so what table is that. I am just starting to look over the chip.

XzotikGT's intake:

thanx

Here is mine: www.fieroswest.org

See New Projects at the left bottom of the page.

Regards,

David

I always loved the way how the WCF intakes were all slippery looking like Kohburns.

I also like how your brakes fill up them wheels, but that is another topic.

[This message has been edited by XzotikGT (edited 10-06-2006).]

how does it run with that manifold? Any gain in the topend?

I wouldnt be able to tell you what was gained from just the intake because the heads were ported and the LIM was ported to match. I also have a turbo.

i havent really ran it that much yet because I am waiting on my intercooler to get here so i can run my piping from the turbo again.

quote Originally posted by XzotikGT: I always loved the way how the WCF intakes were all slippery looking like Kohburns. I also like how your brakes fill up them wheels, but that is another topic.

Who or what is a Kohburn?

scroll up to the red one and look at his username

quote Originally posted by Chicken McNizzle: Who or what is a Kohburn?

*wave*

That sounds interesting. that computer would be able to compensate for a lil boost? You think the idle issues are coming from the map based setup? I might have to look into that. Anything to get the darn thing to idle, and to get rid of this tunning headache.

I have noticed that a few of my fuel setups could be culprit for the rough runnig I have. When I hit the gas pedal, I have noticed on my WBo2 that the car goes silly rich. before when I was running the car it would buck and hesitate if I tried to get up to speed too fast. after a coulple of seconds it would settle down and go. Also I can tell it is ruuning rich at idle because of the smoke when it starts up and is getting warmed up.

[This message has been edited by XzotikGT (edited 10-09-2006).]

not the map/vs/maf -- the batch fire vs sequential fire injection

bigger injectors have a minimum fuel flow and can cause eractic fuel conditions when turned down real low for batch fire.

but if you are running a 36# or less it should be able to idle with a proper tune since mine does with that computer.

what I like about the MAF and SFI setup is its much more forgiving of small discrepencies and adjusts itself well, and there is a good aftermarket supporting it now.

i suppose i should sent my bin back to darth to show him how i fixed the idle issue -- never did get it tuned under boost though -- just tired of messing with it and want local dyno shops to be able to tune it for me

[This message has been edited by Kohburn (edited 10-09-2006).]

yeah it takes forever to tune the thing. I have been contemplating going megasquirt, or haltek, just to get it over and done with. But, Darth is a really good tuner, and I just think I dont give him good enough info to tune the car long distance.

Also you could go with what that TimG guy did and use the piggyback computer he used. I am sure you know what I am talking about, since it is you know who's best friend.

[This message has been edited by XzotikGT (edited 10-09-2006).]

planning to use e-manage -- it can run both maf and map simultaniously, adjust both fuel and spark timing, and when connected to a wideband O2 it can be set to auto tune your baseline settings before you manually fine tune. and has really good software support. (plus a trillion dyno shops know how to use it)

and yeah its really difficult for darth to tune anything long distance

[This message has been edited by Kohburn (edited 10-09-2006).]

so you have to upgrade to maf to use e-manage? You got any more info on that?

no you don't have to upgrade to MAF - infact emanage can even be used to turn MAF based cars into MAP setups.

just read up on greddys website - if you had a MAF setup there are other options also like the MAF translator which can scale a MAF for injectors up to 255% of stock and auto tune based on an innovate input http://www.maftpro.com/tproinfo.shtml

it says you can use the MAFT on speed density. That is cool, but it doesnt seem to do the timing. It does look simple, especiaally since I already have WBo2, and it can set itself up based on that.

quote Originally posted by XzotikGT: it says you can use the MAFT on speed density. That is cool, but it doesnt seem to do the timing. It does look simple, especiaally since I already have WBo2, and it can set itself up based on that.

yeah thats the only downfall of the maf translator - no timing control for boost.