throttle body spacer question

cj070200 · November 4, 2003

Does anyone have one? Is it worth the money? What kind of HP gains do you get?

03TRAILEXT · November 24, 2003

Waste of money. Spacers really only work on Carb Cars.

Willys33 · November 27, 2003

I put a Street and Performance throttle body spacer on my '93 1500 5.7 and noticed a big jump in performance. I also have one on my 2000 5.3 and highly recommend it. Mike

MyBigToy · November 27, 2003

I've had one in my 02 Avalanche almost since it was new. Can't say I noticed a big difference but I do believe it added a little in the mid-range rpm's. I was more interested in trying to maintain better gas mileage and think it helped on this count. It would take a long time to pay for itself in mileage increase, though!

Gilbert · November 29, 2003

It's garbage, don't waste your money. Yes I too was stupid enough to have once bought one.

I was caught at a weak moment, when a local speed shop would not refund my money due to elapsed time on a product I purchased. Anyway, they did offer me credit toward a different purchase, so guess what bone-head crap product I bought. The power aid throttle body spacer. It is a lame product...Pure Garbage.

neomorphin · December 1, 2003

Got one on ebay for 48 shipped from t&t motorsports. I noticed a decent gain and am very happy with my purchase.

tpcracing · December 2, 2003

TB spacers on mult port injection engines are junk. They absolutely will not provide any performance gains. It's been proven on a dyno!

TB spacers work best when increasing the plenum volume of TBI style system on 88-94 GM trucks for example, where raising the injectors higher from the intake pulse which slows down the charge and increases fuel atomization. This is only a marginal gain on these trucks but the concept has shown greater results on hotter carbed motors.

Unfortunately many aftermarket nerds capitalized off the concept and started pushing selling them off on anything that had a throttlebody or the concept of one.

Press out 50 TB spacers at a time, for under $600 in material and anodize them in one batch for around $100, sell them at $50 a piece and profit $1500 minus the advertising....one customer complains, you give him and his loyal buddy their money back and you're still ahead....Geeze...I should've jumped on that bandwagon.

Hope that sheds some light. If you want to get some cheap gains, the GM trucks have a slew of hidden modifications just waiting to be performed. IE...ported TB, EGT mod, coolant bypass, TB blade correction...you name it...

~Ty