Mods to Mustang 302

[NASSTY]

This also looks good on a 302 but I don't know if Mass-flo will be applicable.....

[Aussie Mike]

Originally Posted by NASSTY

This also looks good on a 302 but I don't know if Mass-flo will be applicable.....

Who's is that Al?

Looks like a 2.3L Whipple. It'll make some serious mumbo but I reckon they'll have problems with belt slip. Running a 6 rib setup probably won't be enough surface area. More imprtantly though they should also look at the belt wrap on the blower pulley. It's going to have less than 160 degrees of wrap and the tensioner setup only pushes the belt away from the pulley. I'd change the tensioner design so it pulls against the belt and wraps it further around at least. With serpentine pulley setups its all about surface area contact. Unlike a tooth belt which has positive engacement a serpentine belt transmitts the power by sheer friction between the belt and the pulley.

Cheers

[steeler]

Hi
I have to agree with the "Sound thing" (not angels). I have a 302 in the Cobra, an LS1 in the VZ sedan, My sons have a worked L98 in a VE ute, and my other son is just swapping his LS1 to a worked LS3 in a VZ ute (not heard that yet), but of all that, the 302 "sounds" best, not saying it goes better, just sounds great.

[Rebel1]

I must admit (reluctantly) that a small block ford in full song is a delight.

[Rob. Smith]

Although it is now a tiny V8...The flat head ford has the sweetest note ever produced by a V8...sad to say the leyland v8 sounds ok too ( copy of an OLdsmobile block )

[NASSTY]

Originally Posted by Aussie Mike

Who's is that Al?

Looks like a 2.3L Whipple. It'll make some serious mumbo but I reckon they'll have problems with belt slip. Running a 6 rib setup probably won't be enough surface area. More imprtantly though they should also look at the belt wrap on the blower pulley. It's going to have less than 160 degrees of wrap and the tensioner setup only pushes the belt away from the pulley. I'd change the tensioner design so it pulls against the belt and wraps it further around at least. With serpentine pulley setups its all about surface area contact. Unlike a tooth belt which has positive engacement a serpentine belt transmitts the power by sheer friction between the belt and the pulley.

Cheers

When the pic was taken it was being dummied up but the arm that the tensioner bolts to clamps around the snout so its all adjustable. As for 6 ribbed belts, the Yella Terra kit for the quad cams happily uses a 6 rib belt. At 6psi of boost the blower consumes 20hp as per whipple's website.

Cheers

Al

[Aussie Mike]

Originally Posted by NASSTY

When the pic was taken it was being dummied up but the arm that the tensioner bolts to clamps around the snout so its all adjustable. As for 6 ribbed belts, the Yella Terra kit for the quad cams happily uses a 6 rib belt. At 6psi of boost the blower consumes 20hp as per whipple's website.

Cheers

Al

I think the belt becomes more of an issue at higher boost levels. As the boost goes up the pulley size on the blower gets smaller and the surface area reduces even further.

Keep us posted how it goes together. Looks like an interesting project. Doesn't look like you have an intercooler under there, are you going with water/alcohol injection to reduce detonation or have you dropped your comp?

Cheers

[NASSTY]

Originally Posted by Aussie Mike

I think the belt becomes more of an issue at higher boost levels. As the boost goes up the pulley size on the blower gets smaller and the surface area reduces even further.

Keep us posted how it goes together. Looks like an interesting project. Doesn't look like you have an intercooler under there, are you going with water/alcohol injection to reduce detonation or have you dropped your comp?

Cheers

The thing to note about Whipples or any twin screw blower (as apposed to roots or centrifical blowers) is that they are the most efficient blowers out there. They require less HP to turn and they don't heat up the air (making it less dense) as much. So for the same psi compared to other types of blowers they produce more power.

In this setup comp was lowered thr the use of copper head gaskets and the throttle body is in the scoop, getting cold ambient air so the use of an intercooler was deemed not to be required for the boost level it will run. It also uses a bypass valve. It is open when there is vaccum in the manifold, effectively turning the engine back to a naturally asperated setup and closes as vaccum falls away, making boost. So at idle and part throttle the blower only uses 1hp to turn. The bypass valve effectively equalises the pressure on the entry and exit of the blower. It doesn't route air around the blower.

Whipples also make max boost at 2000rpm and hold it through the rev range too.

Easiest way to turn a SBF into a BBF.

Cheers

Al

[macloft]

That Whipple looks great
Two things I love on a engine are supercharger or injection stacks.
The wipple they now sell for a LS1 at the same price as any other s _charger and you can use the factory computer so cheaper than stacks.
The front serpentine belt I also like but how much noise will it make ie the tooth belt system was very noisey.
Also emmissions. Are you alright on a 302 as Mustangs came out with superchargers or is it a take your chance thing after registration.
One could be tempted to bring back a 302 supercharged motor from USA.
Bruce