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post #1 of (permalink) Old 11-23-2002, 10:14 PM
jeepdad
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Report on throttle body.

Thanks everyone for your information. I ordered a Power Aid throttle body spacer kit from Quadratec. It was $64.95. It took me about 15 minutes to install. I already had installed a K&N filter and tube. The engine seems to idle smoother and a little quicker off the line. On the highway I'm able to hold 65 mph in 5th gear. I also have a ACCEL Super Coil, ACCEL wires, and Bosh plugs. I think I'm squeezing as much hp out of the little 2.5 that I can. Thanks again for the info.

Jeepdad
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post #2 of (permalink) Old 11-24-2002, 05:57 PM
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Re: Report on throttle body.

I'll probably "stir the pot" by saying this, but -

Do you have a German engine in it?
Was that engine designed around Bosch plugs?

Bosch plugs are "fits-alls" at best. Unless you are really
lucky, the heat range will be off, and the indexing will be
wrong too. Ask your wife how she likes "one size fits all"
clothes.
Bosch uses very few application numbers compared to OEM.
"If it fits in the hole, use it" is their credo.
Parts houses promote them because they cost next to nothing
but they get regular retail.

You can't get around the wrong heat range, but you can the
indexing problem.
Pull the head off, install the original plugs that the engine
was designed around, torque to spec.
Mark the head on the outside by the plug hole as to where
the ground electrode is pointing.
Now, when installing knock-off plugs, ie., yellow, blue, pink,
platinum, knurled, split, multi, "magic," etc plugs you can
at least position them right.

The ground electrode creates a "shadow" in the chamber,
lowering HP, lowering mileage, and raising emissions if
positioned wrong.
It can make a difference as much as 20-30 HP on some engines.
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post #3 of (permalink) Old 11-25-2002, 12:28 AM
**DONOTDELETE**
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Re: Report on throttle body.

Rrich... explain alittle more about the plugs? I'm kinda lost... Maybe I just read it to fast? [img]images/graemlins/smirk.gif[/img]
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post #4 of (permalink) Old 11-25-2002, 09:47 AM
Can't Get Enough
 
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Re: Report on throttle body.

Did you try this site?

http://www2.hawaii.edu/~jyokomur/tec...y01/index.html
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