HP add ons

[manwiththeplan]

I bought the K&N Filter (not the air induction system), and a poweraide TBS. I was debating on getting the specailized pully system to increase horse power as well as an electric fan. Also I was thinking about a transfluid radiator. Has anyone tried these? If so what benifits, if any, were noticed?

[95silverado]

If your truck has the TBI system, Check out CFM Technologies Web page. They should have what your looking for. http://www.cfm-tech.com/catalog/gm_t...5_products.htm

[YBNRML]

How do you determine if you have a TBI? I have a 96 Z71 5.7ltr.

[95silverado]

If your truck is a 96 or newer it has a vortec engine with central fuel injection, the 95 and older V8's are throttle body injection (TBI).

[YBNRML]

Thanks - I have always heard them call it a vortec, but what makes it a vortec?

[95silverado]

The vortec engine is the same basic block as the TBI engine, but it has improved heads, that breath more freely. It has a rollor cam, and lifters, and newer fuel injection system. The 5.7 votec makes 255 hp and the 5.7 Tbi make 210 hp.

[YBNRML]

Thank you for that info, I was also wondering what the HP rating was - thanks.

[theguyfromnj]

what does the 5.0 vortec make as far as HP as opposed to the 5.0 TBI? Is TPI better or worse than TBI?

[95silverado]

I think the vortec 5 liter makes 220 hp and the TBI 5 liter makes 160 hp. Tuned port injections is better for horse power, TBI is more reliable.

[YBNRML]

What is the differance between the 4x4 and the z71 besides the obvious (both are 4x4's)?

[UngerC]

Lets see.... Shocks, skid plates...., really cool sticker .... Mine is a 97 Z71, course I have aftermarket shocks and skid plates, but still my Z71 Sticker.... I thought maybe the wheels and tires, but I replaced mine long enough ago I don't remeber (33.5 X 12.5)

[goinbig]

By transfluid radiator, do you mean transmission cooler? If you off road alot or tow/carry heavy loads, I would definatly reccomend it. It doesn't add and horsepower or torque, but it sure does keep the tranny running cooler!!

I would also consider the electric fan. I just bought dual 15" fans for my 454 and it made a huge difference in the engine temperature. It also did free up a little more torque as well. I would definatly reccomend it.

[Rbraczyk]

Thanks for that site, my 94 blazer needs some more power, despite its 281k miles.