I have been trying to apply the TBI knowledge I have gained from this site. And to everyone involved, a "Thank You"
I am currently working on the radius of the TBI body and removed the bore ridges. As I looked at the injector gasket I was wondering if it is necessary to buy a spacer or stack two gaskets together. It seems this gasket doesn't actually seal anything, so why coundn't a tube or a stack of small washers work as a spacer for each mounting bolt?
Does anyone think this would cause air turbulence between the bores, could this affect the flow of air?
I guess there is only one way to find out.
Try it.
Anyone else have this thought, or tried it already?

 

it seals out dust. which is bad for your engine.

 

Hey snflupigus, Now I got it, the dust can enter through the fuel fittings hole.
Ok, now I have a new idea, I still want to use washers as spacers because of the height adjustability, and a soft foam ring to seal the fuel fitting hole.
I want to find out what the optimum space would be for my engine, as opposed to using the 454 spacer.
You guys would know if I'm wasting my time.
Tell me like it is.

 

Has anyone actually used a spacer, and had an increase in performance?

 

performance increase is minimal.
what you want is your injector spray's cone to outline the blades as best as possible. you want the spray to hit barely above the throttle blades. right now the spray hits the blades most likely and bounces back up. there is a razor thin gap around those blades when they are closed, air is flowing thru that gap and your iac passage, the air flowing around the blades is moving very fast, and helps atomize the fuel that is sprayed there, some of it will drip to the manifold floor and thats what the heat crossover is for, it heats the gas back to a vapor so that puddled fuel doesnt run down your runners, so you dont have raw fuel intering your cylinders.

anyway, homemade. na, just go buy the kit from your dealer, or get on ebay, they are there all the time, its just a gasket, and its cheap, why waste time trying to make your own? if you do make your own, get some cork or something, and outline your old gasket and make one, dont use washers, that would be gheto.

[This message has been edited by snflupigus (edited June 03, 2001).]

 

Ah, I see what you're talking about and snuf is right about the unfiltered air getting in.

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, Jon (350 TBI!)
91 Red My website

[This message has been edited by JPrevost (edited June 03, 2001).]

 

I just used two gaskets, couldn't tell a performance increase, but no problems whatsoever..