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[Tommy V]

Yea i would go with the 4.6 for now.My fuel was good with the 4.5 but when i.put the 4.38 on it went a little lean about 7300 rpms.I also have the fore twin hat with 2 465's 10an feed to the filter then 8an to the rails.Stock rails though.

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[Jay-rod427]

New 4.13 pulley got the boost back to about 14-15 @7500! Gained about 12-14%load as well. 1.95ish

 

[Vector]

New 4.13 pulley got the boost back to about 14-15 @7500! Gained about 12-14%load as well. 1.95ish

What have your previous setups been

 

[Jay-rod427]

What have your previous setups been

4.5” pulley made 15 lbs at 7500 but that was back in 30-40 degree ai in February. It lost about 4 lbs in our now 3,000+ da

 

[whatsup62]

Yea i would go with the 4.6 for now.My fuel was good with the 4.5 but when i.put the 4.38 on it went a little lean about 7300 rpms.I also have the fore twin hat with 2 465's 10an feed to the filter then 8an to the rails.Stock rails though.

Same setup that I am having installed now with rails. Im on the 4.5 with the D1X and E85, with the Sai Li kit it was starting to lean out at 7500rpm.

4.5” pulley made 15 lbs at 7500 but that was back in 30-40 degree ai in February. It lost about 4 lbs in our now 3,000+ da

The 4.5 thats on now makes 15ish at 7700rpm. Did a baseline dyno and saw 780 rwhp at 7200 rpm at 12.5 psi. I was contemplating dropping down to the 4.38 but after seeing this I think I will leave the 4.5 on til the new motor is done.

 

[Tommy V]

Same setup that I am having installed now with rails. Im on the 4.5 with the D1X and E85, with the Sai Li kit it was starting to lean out at 7500rpm.


The 4.5 thats on now makes 15ish at 7700rpm. Did a baseline dyno and saw 780 rwhp at 7200 rpm at 12.5 psi. I was contemplating dropping down to the 4.38 but after seeing this I think I will leave the 4.5 on til the new motor is done.

You will be happy with the fore setup,i had problems with the Sai Li system and it was just not worth it.Also yea i would hold off on the 4.38 pulley until you have a built motor.If you do a pull and blow the tires off like i did and hit 7900 rpm with that pulley you will pribably lift a head.And it happens real quick,so you cant just let out.

 

[Vector]

Sai li has an all right kit, but I don't believe it's twin 465.

One other setup for twin pump guys is 1 465hp and a hellcat pump believe it's listed as 512. Possible even 2 of those I was told to put one on a Hobbs switch if you do so.

 

[bluebeastsrt]

I’m happy with the Sai Li kit so far. But I’m also not pushing the car nearly as hard as you guys are. I trapped 138 last night in +1500DA. And the logs showed full timing all night.

 

[Vector]

I’m happy with the Sai Li kit so far. But I’m also not pushing the car nearly as hard as you guys are. I trapped 138 last night in +1500DA. And the logs showed full timing all night.

whats your ballpark weight I think your a 2200 blower, what boost pulley combo
I think the sai kits tend to run out depending on the car it seems 750-800
138 is still great MPH

 

[bluebeastsrt]

Its a 2200 on a 3.6 pulley. I wouldn’t push the sai Li any harder. I know some people have. But if I thought I was going to be chasing bigger power. I would have went with a fore kit. My only goal with this car is to run a 9 anything. At a full weight of 4070 pounds. The sai kit should get me there this fall. No problem.

 

[Tommy V]

Its a 2200 on a 3.6 pulley. I wouldn’t push the sai Li any harder. I know some people have. But if I thought I was going to be chasing bigger power. I would have went with a fore kit. My only goal with this car is to run a 9 anything. At a full weight of 4070 pounds. The sai kit should get me there this fall. No problem.

Oh yea i got into the 9's with that kit.Actually 9.7 at 142.

 

[Tommy V]

Does anyone know if arp makes a crank bolt for the procharger stage 2 8 rib setup yet.I cant find a part number anywhere.

 

[Jay-rod427]

Does anyone know if arp makes a crank bolt for the procharger stage 2 8 rib setup yet.I cant find a part number anywhere.

You're talking the longer bolt to use the Procharger cam lock pulley?

 

[Tommy V]

You're talking the longer bolt to use the Procharger cam lock pulley?

Yes the stage 2 8rib has the cam lock pulley that bolts to the stock crank pulley.

 

[Jay-rod427]

Never come across one. Call and ask ARP if they have a longer m12-1.5 bolt. I'm not sure how much longer it needs to be.

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