TBI guys.. ?

[AtomicHoe094]

hey, well like many TBI guys, looking for more hp and torque. came across this on ebay. im not sure really how its supposed to gain hp and stuff, but has anyone have any experience with these??
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=350159634505
Also what about Jet Performance chips for you TBI guys. i heard from tons of ppl that these suck and such, but just checking with you guys.. let me hear some reviews, opinions and shit.. thanks

[JKmotorsports]

The pulleys help by letting the crank spin the accessories easier, kinda like changing the gears on a 10-speed bicycle. The smaller the drive pulley, the less effort it takes to spin the rest of the pulleys, freeing up some hp.
As for chips, the only thing you can do with TBIs is replacing the eeprom with an aftermarket chip programmed with the mods to your set-up. Superchips can burn a custom chip for you.

[AtomicHoe094]

it doesnt say, but then these are underdrive pulleys or overdrive??

[JKmotorsports]

underdrive

[AtomicHoe094]

would it be worth while to put on my truck? I say this because im getting a volant CAI, and this guy has more items for sale on ebay and i checked em out.. he also has a TB spacer and the pulleys, he said he would give me a really good price if i bought all 3.

[haks310]

I've read up on the pulleys and read up on experiences guys over at FSC have had with them and most were not impressed. I would skip it and just look into getting the intake and spacer.

[AtomicHoe094]

even a spacer most people would veer from them. but you never know until you personally try something out you know.. im looking to free up some more hp from my truck tho. im looking into that volant CAI then i think if its a good deal the spacer. then ill shoot for headers and maybe a cam. then a custom chip

[JKmotorsports]

I've read up on the pulleys and read up on experiences guys over at FSC have had with them and most were not impressed. I would skip it and just look into getting the intake and spacer.

I agree. For the money, it doesn't make much of a difference unless you're trying to get the most out of your car for e.t. and trap speed. On a DD, that same money can be better spent elsewhere imo.

[JKmotorsports]

The spacers on tbi and carb motors can be beneficial where they can help atomize the fuel better since the injectors/jets spray before the spacer. But I would never use them on a dry type system where the injectors spray downstream of the tb.

[haks310]

even a spacer most people would veer from them. but you never know until you personally try something out you know.. im looking to free up some more hp from my truck tho. im looking into that volant CAI then i think if its a good deal the spacer. then ill shoot for headers and maybe a cam. then a custom chip

Actually if you read up on FSC and GM FullSize you will see that a lot of the people run them and have positive things to say about them. I would do the intake, throttle body and injector spacer. Then look into the headers, y pipe, cat and muffler if you have not so already.

[bowtiefreak]

My vote is headers, even a cam. The custom chip will help too, but do your other mods first and have the chip set up for them.

[AtomicHoe094]

what about this??? hmmmm http://cleveland.craigslist.org/pts/1204723447.html

[bowtiefreak]

yes! may not pass emmisions though

[AtomicHoe094]

dont need emission. : ) i have my dads dealer plates.. hehe but that would be a sick as fuck motor tho wouldnt it?

[bass1775]

I have underdrive pulleys on my truck. I've never had it dynoed so i can't say for sure they work but, the theory is sound. However, the downside is you have to careful with the alternator turning too slow especially if you have heavy electrical requirements, ie: big systems. A way around that is to purchase an overdrive pulley for the alternator if you install the underdrive pulleys. I have a powermaster alternator and this is what they recommended for my solution after repairing the alternator. Haven't had any problems since.

[AtomicHoe094]

hmm.. do you remember if the motor turned easier as they say or the sound was quieter??

[bowtiefreak]

383 ftmfw

[96ProCompTahoe]

383 ftmfw
+1

[Bad bow tie]

would it be worth while to put on my truck? I say this because im getting a volant CAI, and this guy has more items for sale on ebay and i checked em out.. he also has a TB spacer and the pulleys, he said he would give me a really good price if i bought all 3.

So if you do end up doing these mods, post your results. I also thought about doing this to my TBI, but with either a K&N intake or Airade (cheaper) with probably an Airaid TB spacer. Just costs a small fortune and the results I may see are detering me a bit. Also thought about getting a chip burned from TBI chips. Anybody running a set up like this or a TBI chip?

[haks310]

You'll notice a greater throttle response and about a gain of 2MPG. I would to the injector spacer as well. Haven't gotten the chip out the way, going to do that when I finish the exhaust; headers,cat and muffler.

[hapyspaz]

Personally, I think under/over drive pulleys are overrated. I would get rid of the heavy, bulky, clutch operated fan hanging off the pulley system to start, and replace it with a single or double electric fan setup. This will take the most tension off your belt system.