95 Cobra with Pullies Question

[Craig K.]

I have the new pullies on now, the concern that I have is that the belt almost touches between the water pump and the idler pullies, due to the increase diameter of the water pump pulley.

I have heard that you should either remove the idler pulley, or run the belt over it (bypassing it).

My belt is about to break (hope I make it home) so I will be buying and installing a new one tomorrow.

Do any of you guys (Eric, Tommy, Jase) have experience with this?

[natedawgg94]

Do you have the smog pump deleted? If you do and are not running a dummy pully you can use a k6905 belt it works pretty good..

[EZ SPEED]

I ran stock pullies on the 94 Cobra and was using a smog delete pulley so that I could run a stock belt.
Sorry I cant be more help.

[QWKSNKE]

What pulleys do you have? The stock underdrives or did you buy some new underdrives

[95whitevenom]

Dude I have ASP's on my 95 cobra and im not bypassing the idler pulley and im still using the stock size belt.

[93Cobra#2771]

Sounds like you are bypassing the smog. If so, there is an alternate routing for bypassing the smog...

[Craig K.]

I do not plan on bypassing the smog.

I have aftermarket under drives (not sure of the brand) crank is reduced, water pump and alternator are larger.

There is very little space between the water pump pulley and the idlar pulley (not tensoner).

The stock belt is thin, so there is a slight gap between the two sections of the belt at that point (at the water pump pulley and the idlar pulley).

Occroding to the ASP website, on Cobra's only, you remove the idlar pulley and run the stock belt.

The stock Cobra belt is 105", the stock GT belt is 104.5".
Tommy and I talked about this last weekend, we are not sure what is differerent on the Cobra to make the belt 0.50" longer.

[EZ SPEED]

Originally Posted by Craig K.

Tommy and I talked about this last weekend, we are not sure what is differerent on the Cobra to make the belt 0.50" longer.

Supposedly the Cobra already has an underdrive pulley on the waterpump. Lee will correct me if I am wrong about this.

Here is what I have in my files I got from another board:

94–95 Cobra Specs
Here is a list of items that are unique to the Cobra vs the GT (94-95)
If anyone has anything to add to this list feel free to e-mail me.

Engine/trans

The Cobra engine was under rated at 240bhp from the factory compared to the GT's 225bhp and was only available with a 5 speed and 3.08 rear end gears.

Cast iron GT40 heads
Cast aluminum Cobra intake manifold
Crane 1.7 rocker arms
24lb fuel injectors
Cobra specific ECU (computer)
"Cobra" stamped valve covers with build sticker and signature
Engine oil cooler
Front mounted power steering fluid cooler
Lightened flywheel
Phosphate coated transmission gears
Overdriven waterpump pulley
Cobra specific camshaft
Cam specs: Duration: 227°/Intake & 270°/Exhaust
Lift: .485/.485 Intake/Exhaust
Lobe separation: 118.5°

Suspension/Brakes

13" Front brakes
11.65" rear brakes
"Cobra" embossed front calipers
Cobra specific brake booster
Cobra specific rear sway bar
Cobra specific shocks/struts/springs
K-member that is slightly stiffer than the GT's
No strut tower brace

Interior
Steering wheel center / Airbag cover embossed with "Cobra"
White faced gauges
160mph speedometer
"Cobra" embroidered floor mats

Exterior
Cobra specific 17" wheels
Cobra specific rear spoiler with integrated 3rd brake light
Cobra specific front bumper cover
SVT emblem on decklid (95-up, not on 94)
Cobra emblems on front fenders (no 5.0L emblems)
"Crystal" (clear) headlights
Round cobra specific foglights

Other info:
The 94-95 Cobra came with a 60mm throttlebody (like the GT), not the 65mm alot of people believe it to have. The 93 cobras came with a 65mm.
Although the 94-95 Cobra came with 24lb injectors it still uses the same MAF (mass airflow meter) as the GT. The Cobra specific computer compensates for the 24lb injectors.

[QWKSNKE]

Originally Posted by KB ZILLA

Supposedly the Cobra already has an underdrive pulley on the waterpump. Lee will correct me if I am wrong about this.

Here is what I have in my files I got from another board:

I thought it was all pulley's though. Didn't realize it was just the water pump pulley

[Craig K.]

I am kinda thinking of trying to get a slightly smaller OD idler say a 3" instead of the factory 3.5".

Then I would use the GT belt length (104.5").

Bypassing the idler just doesn't seem right, and there is barely enough of a gap between the water pump and idler (when the belt is installed) to see light.