throttle body spacers

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throttle body spacers #277641 06/22/03 01:42 AM

Joined: Apr 2001

Posts: 586

St. Louis

no_hank

Rock Warrior

gimick or worthwhile? I hear conflicting arguments, and was wondering if anybody around here has any input on the topic.

has anybody tried machining their own? I cant see paying $60-$80 for a $5 block of aluminum, $3 in bolts, and half an hour in a machine shop. is there a good rule to follow when calculating the thickness of the spacer? has anybody experimented with a venturi style bore on a spacer?

97 TJ Sahara 4.0, K&N FIPK, 2.5" rancho, 31x10.5 BFG, black rims, tuffy stuff, hi-lift, AA SYE+tom woods CV rear, tera adj. upper rears, centerforce dual-friction, MSD coil/8.5mm, borla cat-back, warn steering skid, slotted rotors+high perf pads.

Re: throttle body spacers #277642 06/23/03 05:18 AM

Anonymous

Unregistered

I built my own spacer out of a 1 inch block of
T-6061 with a 55mm bore, than portmatch it with a 4.0L TB and the Intake manifold.
It Did Help. Hell Ya. I can hold 80+ on the freeway in 5 gear. this is on a 92 yj 2.5L with 140,000 miles
Over at 4 bangers we had a guy make 4 different size and he like 1 and 1.25 the most.

<small>[ July 09, 2003, 06:24 PM: Message edited by: OILsmoke ]</small>

Re: throttle body spacers #277643 07/10/03 05:25 AM

Anonymous

Unregistered

hi no-hank, my son put one in his 98 zj 4.0 and noticed a difference right away. he upped his mpg by almost 1 mpg. he bought his on the internet for somewhere in the $40 range. shop around. good luck, john

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