The Official Centrifugal Pulley/Boost Combo Thread!!!

[SVTPete83]

My v1 is maxed at 13 psi. I have a 3.33 pulley and a 10% od crank pulley. Car put down 520 with that setup

 

[CobraObsession]

So maybe thats a 3.12/3.25 with a stock 8 rib setup right? Also, what fuel setup do you have? Ihave a 255 in tank and thinking about getting a KB BAP.

 

[SVTPete83]

I have a walbro 255 with a BAP and 60 pound injectors.

 

[CobraObsession]

I have a walbro 255 with a BAP and 60 pound injectors.

Yea me too. So what size pulley, 3.12 or 3.25 with just the 7" crank I believe(stock 8 rib)

 

[SVTPete83]

If you're using the stock
Crank you're gonna need at least a 3.0 or 2.87 to hit 13psi. A 3.33 on my stock
Crank got me 10 psi.

 

[CobraObsession]

If you're using the stock
Crank you're gonna need at least a 3.0 or 2.87 to hit 13psi. A 3.33 on my stock
Crank got me 10 psi.

Was that on a 6 rib or 8 rib setup? I have an 03 cobra motor in mine

 

[SVTPete83]

Stock 96 cobra six rib pulley

 

[CobraObsession]

Yea that's what I'm saying, stock 8 rib is bigger so Id need a bigger size pulley, that's what I'm trying to figure out.

 

[SikVic]

Yea that's what I'm saying, stock 8 rib is bigger so Id need a bigger size pulley, that's what I'm trying to figure out.

i got a 8rib 2.78 pulley for a vortech if ya need one

 

[JP_Stang]

What pulley size could I run with my setup to almost max my v1 s trim?
96 Cobra with:
04 Cobra long block
stock cams
8 rib
60lb inject
air to air IC

Vortech has an impeller speed calculator on their website under Tech support I believe. You can enter in your crank pulley diameter and then just type in different size blower pulley's till you find the right combination. If I remember correctly the V1's have a max impeller speed of 55K...

 

[98 Saleen Cobra]

No the S-trims are 50 T-trims are 55k

 

[SVTPete83]

V1 has a max of 50k. V2's are 55k as well as the t trim.

 

[phatboy5015]

2004 GT 5 speed

1. 2V Stock PI heads
2. P1SC
3. Stock compression
4. Stock heads
5. Stock cams
6. Stock PI intake
7. ProCharger 2 core A/A intercooler
8. Stock manifolds, o/r h pipe, flowmaster catback
9. Stock crank pulley, 3.6" blower pulley, 108" belt, stock tensioner
10. 10-11 psi @ 5500+
11. Stock Procharger inlet
12. ? Street tuned. Hopefully have some times next weekend though.

12.881 @ 111

 

[JP_Stang]

96 Cobra
1. 4V B-Heads
2. Vortech T-trim
3. MMR900 Block w/9:1
4. Stock untouched heads
5. Stock Cams
6. Stock Intake
7. A/A Bell Intercooler
8. Hooker LT's / 3" X-pipe / 3" MAC Pro Dumps
9. Reichard Racing 3.0" Blower pulley / Innovator's West 10% OD / 114" Gates HD Belt
10. 18lbs. @ 6800rpm
11. 4" Powerpipe
12. 533/456 @ 14* on 93

 

[SVTPete83]

96 Cobra
1. 4V B-Heads
2. Vortech T-trim
3. MMR900 Block w/9:1
4. Stock untouched heads
5. Stock Cams
6. Stock Intake
7. A/A Bell Intercooler
8. Hooker LT's / 3" X-pipe / 3" MAC Pro Dumps
9. Reichard Racing 3.0" Blower pulley / Innovator's West 10% OD / 114" Gates HD Belt
10. 18lbs. @ 6800rpm
11. 4" Powerpipe
12. 533/456 @ 14* on 93

I think you should throw some more timing at this thing!! At 14 psi with an s trim I am almost at that hp level. 20 degrees of timing on 91. I think you could go at least 18 degrees and pick up a ton of power

 

[98 Saleen Cobra]

Pete, he had alternator issues on tune day.. It's also on a M.D Dyno.. That car will break 600rwhp easily with proper timing :beer:

 

[SVTPete83]

That makes sense. Mustang dynos are stingy!! I am looking forward to seeing this dialed in. Very similar to my motor.

 

[97snakebite]

I have a walbro 255 with a BAP and 60 pound injectors.

wtf?? how did I run outta fuel with my p1!!! I have green tops, bap and 255. Ran out at 500whp

 

[98 Saleen Cobra]

wtf?? how did I run outta fuel with my p1!!! I have green tops, bap and 255. Ran out at 500whp

You're injectors was the issue..

 

[97snakebite]

You're injectors was the issue..

Now u tell me lol

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