Limits of vortech mondo bypass

[xXSVTmonsterXx]

Will it handle 800rwhp/ 15-20#s of boost on a big bore 5.4 4v with 12:1 compression?

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[98 Saleen Cobra]

Yes.. I'm running 16 right now.. It'll handle about as much as a Big Red.

 

[xXSVTmonsterXx]

Yes.. I'm running 16 right now.. It'll handle about as much as a Big Red.

I'm just concerned with the max cfm... I'm unsure what's required for my combo.

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[97snakebite]

I'm just concerned with the max cfm... I'm unsure what's required for my combo.

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if u have concerns just run 2

 

[98 Saleen Cobra]

What are you spinning the blower to?

 

[coposrv]

It's not really about pressure or HP it's about cfm. 20lbs on a 5.4 with ported heads and a good flowing intake and exhaust is going to be moving a lot more air than 20lbs on a stock heads intake exhaust 4.6. You're on the right track though. Do you know how fast your spinning the blower?

 

[mtrsprt]

It's not really about pressure or HP it's about cfm. 20lbs on a 5.4 with ported heads and a good flowing intake and exhaust is going to be moving a lot more air than 20lbs on a stock heads intake exhaust 4.6. You're on the right track though. Do you know how fast your spinning the blower?

I agree. That's a lot of CFM. I would be looking into a Big red, or Vortech BV57 for discharge needs on your setup. You can never go too big.

 

[xXSVTmonsterXx]

It's not really about pressure or HP it's about cfm. 20lbs on a 5.4 with ported heads and a good flowing intake and exhaust is going to be moving a lot more air than 20lbs on a stock heads intake exhaust 4.6. You're on the right track though. Do you know how fast your spinning the blower?

The ysi came with the 2.75 pulley and I have a 10% overdrive damper. Really I only want/need like 15-18#s of boost... less perhaps.

I'm shooting for 800rwhp. Its a 367ci 4v with race ported gt supercar heads, big primary headers etc.

E85 is my fuel. 12:1 compression.

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[mtrsprt]

Thats an easy 900rwhp setup right there. The 2.75" pulley will slip pretty good however. Try a Vortech traction improved 2.85".

 

[coposrv]

Looks like with the 2.75 pulley you'll be spinning the ysi around 60k rpm at 6500. That's going to be moving around 1500-1600cfm. Size the blow off according to that. Remember there's no penalty for going a little bigger.

 

[xXSVTmonsterXx]

Thats an easy 900rwhp setup right there. The 2.75" pulley will slip pretty good however. Try a Vortech traction improved 2.85".

What would you say a 3.1 or so pulley would make? what are my pulley options to hit 800rwhp without so much slip?

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[xXSVTmonsterXx]

Looks like with the 2.75 pulley you'll be spinning the ysi around 60k rpm at 6500. That's going to be moving around 1500-1600cfm. Size the blow off according to that. Remember there's no penalty for going a little bigger.

I've got 1 mondo, will 2 cut it? I've heard variances on what they flow.

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[Brutal Metal]

As I said in another thread a 2.75 RR is gonna be 20+ lbs of boost with that crank damper...I'd run a 3.0-3.1... AND mtrspt a 2.8 Vortech pulley is better for belt slip versus a Reichard :??: Haven't seen that verified in my experiences, it fact it's the opposite, I enjoy my RR:thumbsup:

 

[Brutal Metal]

I've got 1 mondo, will 2 cut it? I've heard variances on what they flow.

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2 Mondos will handle the task FINE. I'd try 1 first bunged close to the discharge:beer:

 

[mtrsprt]

AND mtrspt a 2.8 Vortech pulley is better for belt slip versus a Reichard :??: Haven't seen that verified in my experiences, it fact it's the opposite, I enjoy my RR:thumbsup:

My 2V car made 26psi with a Vortech traction pulley on a 8-rib setup with a YSi. 2.85" compressor, 7.5" crank damper. They work VERY well, and are easy on belts too. I have also run the Reichard pullies, and they worked well also yes. :thumbsup:

 

[Brutal Metal]

^oh gotcha your not taking about the regular 6 rib Vortech ones that come in the kits?...
Those don't hold as good as the RR's!

 

[mtrsprt]

^oh gotcha your not taking about the regular 6 rib Vortech ones that come in the kits?...
Those don't hold as good as the RR's!

Not even close :-D