Installed my TBI spacer last night
 

I'm impressed. I got the Trans Dapt torque curve ...nice low-mid acceleration (which is what I was looking for), no whistle, etc. etc.

As it's been said before on this site - best mod ...especially for the price.

Install was very easy since I already did the throttle body coolant by-pass ...took about 15 minutes and that includes the time to clean my throttle body.

Thanks for the idea guys.

RE: Installed my TBS last night
 

I wonder if my 5.7 will have similar results from a TBS?? I know it will help but will it be the same amount of gains that you guys are gettin' out of your 5.3's?

RE: Installed my TBS last night
 

For $50-$60, it's probably worth a shot. :)

RE: Installed my TBI spacer last night
 

Any change in gas mileage on this type of mod?

RE: Installed my TBI spacer last night
 

The web site claims there is an improvement ...but I haven't had it installed long enough to tell. I know Smoke20 mentioned that if he wasn't so heavy footed, he would have seen some gains. ...He installed the smooth bore TBI.

RE: Installed my TBI spacer last night
 

i started driving faster and got the same mileage, so i guess that means it does improve mileage

RE: Installed my TBI spacer last night
 

I attempted to install my Trans Dapt TBS earlier today, but I already have the K&N Intake kit on my truck. the intake tube was already rubbing the fan shroud so there was no room for the tbs unless i did major cutting on both the fan shroud and intake tube. I decided it wasnt worth the risk of ruining my other parts so i will be sending my tbs back to JC Whitney.

Since I had the hood up, I decided to change my spark plugs and descreen my MAF sensor. I replaced the AC Delcos with E3 Diamond Fires. I dont know if they are any good but I wanted to try them out. About $7 per plug at Advance Auto Parts w/5 year warranty. By the way, descreening the MAF was super easy- i used only a flathead screwdriver and pryed at the edges and it popped right out. Can you guys tell a difference after descreening? I havent driven much yet so i cant tell

RE: Installed my TBI spacer last night
 

I have a 91 silverado i wonder if a TBS would help me get some more HP out of it. also should i go with a smooth bore or with something else?

RE: Installed my TBI spacer last night
 

I was confused as to which Trans Dapt TBS to get too. I ended up buying the smooth bore but once I read the actual box it came in i understood the difference. It says this on the side of the box:

"Torque Curve- greatest performance gains from any spacer.
Wide Open-for mid to high end gain, often used for towing.
Smooth Bore-economical, mild performance upgrade, typical torque increases of 10-15% and fuel economy improvements up to 8%. "

So Torque Curve is the way to go and is a few dollars more, although the other two are not bad. All of them claim No Whistle.

RE: Installed my TBI spacer last night
 

Yes, gpet6669. You'll notice a significant gain. I noticed a significant gain on my 91' 5.0 and that was a dog of a motor.