1. Do any of you guys have th TBI spacer, if so did you notice a difference?

2. If I bore my throttle bigger will I need a custom chip burned? (I am getting one any way I just cant afford it and I wanted to make sure my car will still run)

 

i dont have the spacer but, if you make your own out of wood, its probably worth it. cuz then its dirt cheap.
As for the chip, no, you wont if NEED one, but an aftermarket chip will probaly work well for you. Then again, custom is probably better, but more expensive, unless you can get the guys on here to start making em for you.

 

I would not suggest using wood for a spacer. If you go to a hardware store, find a plastic board type material that can stand the heat. You can even go to a commercial cooking place where they sell 1/2 inch thick cutting boards made to stand heat and lots of other things. They work well too. Major food market chains use them and are required to replace them(health codes) after certain amounts of use so you could probrably even get a peice for free if you ask nicely. It's some tough stuff. That's how I did mine on the old 305 and I never had any problems. I did notice a slight upper end improvement.

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88 firebird formula
350 Vortec TBI
214int/224exh, .471int/.491exh
Edelbrock headers
SIX-speed
Eats LS1's with a 2.73 open rear and 2 1/4 stock catback

My Formula

 

snflupigus,
Did you just suggest someone use wood as a TBI spacer???

Sounds like some potential darwin award material to me.

cobrakiller1989,
My advice is: Do not use wood in your engine compartment under any circumstances.

The Custom chip is not exactly needed but desireable for the best drivability. Some people have complained about a bog off idle when the get into it hard. This is due to an inadequate stock accelerator pump shot for the aditional airflow of a larger 2" bore TBI unit.

A few words on carb / TBI spacers. These effect the power band of the engine. You may pick up a couple horse power in one location and loose in others. The key is to maximise the gain and minimise the losses. To do this requires track time and multiple spacers of different heights and designs. If you just bolt one on at random, you are just as likely to slow down as speed up. Gains will be small in any event... probably less than 1/10 in the 1/4.

 

i did notice the bog also. but its a tradeoff, for going from 40 80 MUCH faster.
Wood is ok, its not like its goingto spontaneusly ignite at 200 degrees. But if you have a backfire in your manifold, you wouldnt want it there. True, not the best, but i havent heard any death stories from it. Didnt engines used to have wooden components.

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ENGINE SPECS:
305 TBI,Open Element,K&N 14x3,Hypertech Stage I,160 Deg. Thermostat,454 GM TBI

STEREO SPECS:
JVC Kalmeleon kdlx3,Infinity Kappa 2way 6x9's,PPI 4x6 Coaxials,PPI PC2400 AMP @ 2ohm
DEI Studio 12" 4ohm DVC,Custom Box:Exactly 1 Cubic Foot

 

there is nothing wrong with using wood as a tbi or injector spacer, carb spacers for years were made of wood and you can still find wood carb spacers in a jegs catalog
It must be HARD WOOD, not like pine or crap like that, it sould be like oak etc, and it might be a good idea to put hot fuel dope on it which is sold at most hobby shops for the RC airplanes but ive heard of people bolting it on with no coating whatsoever with no problems at all

I went the plastic route back when i was messing with spacers (dont have one now)and you are gonna have to find some pretty wicked plastic that will withstand what an engine throws at it, only one i found was corian and thats not easy to find. The adapter i will have to make for my new throttle body will be made out of wood ill tell you that much about my confidence in it.



[This message has been edited by Pablo (edited October 03, 2000).]

 

I say again, bad idea. Its a fire hazard.

 

And what would happen when it gets fuel soaked? Can you say, ONE HUNDRED times the fire hazard!!!!!!!!

------------------
88 firebird formula
350 Vortec TBI
214int/224exh, .471int/.491exh
Edelbrock headers
SIX-speed
Eats LS1's with a 2.73 open rear and 2 1/4 stock catback

My Formula

 

Wood in an engine just doesn't sound right to me. I wouldn't go with wood my friend. Some people have it I guess like pablo and stuff, but personally, I wouldn't want to open my hood and point to it and say "thats wood spacer" Seems like a fire hazard too.

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Eric Natzke
91 Firebird 305 TBI (dropping in a 355 summer of "01")
ASCD Ram Air Hood-3" custom exaust-Flowmaster 80 Series-No Cat-Edelbrock TES Headers (coated)-March Pulleys-TBI Spacer-K&N Open ELement-TransGo Shift Kit-B&M Supercooler 28,000 GVW-Hypertech Thermomaster-160 Stat-3:42 GM Gears-Auburn Posi Unit-Edlebrock Strut Tower Brace-MSD Superconducters-Accel Cap & Rotor
-Rapidfire Plugs-Pablo's Free Mods-265/50/R15 Tires-Emmison's all Gone

http://hometown.aol.com/J007Golden/index2.html

[This message has been edited by 91Bird305 (edited October 03, 2000).]

 

Fire hazard? Dont be stupid, first of all how many times does a constant flame happen in the manifold before the oxygen supply is exhausted? Never, theres a vacuum in there when the motor is running, and when its not the throttle blades at rest much like putting the lid of a pot over a grease fire on your stove. Ive messed with plastic, and you dont even wanna know what can happen when that plastic reaches its boiling point, ask jester about it. When did you guys decide that wood was flammable and plastic wasnt? Plastics, all plastics, are petroleoum based! In otherwords its made out of the same stuff gasoline is made from. As for it being hokey that you use wood in your engine, why isnt it hokey that you used pressed cardboard for your gaskets? and rubber for your valve seals and CLOTH for rear main seals (two peice rear mains) Hell, AIRFILTERS ARE MADE OF PAPER, how many times do you see them bursting into flames? Why dont gaskets burst into flames either? Just to be sure, i just lit one on fire now, a carb gasket no less, the thing burst into flames like a molotov ****tail and it had no fuel on it whatsoever i dare any of you to try to set a peice of hard wood on fire as fast as i can get a gasket on fire
Look in jegs, they are for sale, why would someone sell them if they were a fire hazard? That company wouldnt last two weeks what with people sueing others for Hot coffee


btw I did mention that youd wanna use hot fuel dope right? just making sure

[This message has been edited by Pablo (edited October 03, 2000).]

 

hmm. wood might not be good for an every day car though. Racers go for a couple seconds at a time.