[707F6F]

Hello all,
I looked around but didn't find my answer. Does anyone know the correct belt to use with the stock lower and 2.85 Griptec upper? Almost have all the parts needed for my build. Just need a few other things. My build is as follows

2.85 upper
Fic 1200 injectors
Dual in tank pumps
LMI intake
180 Stat
Pinned lower
Blower spacer/blanket (still deciding)
3.09 rear
DSS 1 piece drive shaft
Diff brace
Cradle lock out kit
Mickey Thompson Et Street R
New computer or unlock the stock?

Dusterhauff trans/flex tune with a second track/race tune with second pulley.

What do you guys think? Am I missing anything? Will probably start installing parts this weekend. Can't wait to really unleash this thing. Still trying to decide between Steve white pumps or tapped performance. Some say SW set up uses small pumps. Any thoughts?

Thanks in advance.

 

[greasy]

You want the Gates Fleet Runner K100572HD.

 

[MrEditUndo]

Blower spacer/blanket (still deciding)... this is a seriously great investment and I cant recommend more. Also since you're pinning the crank I would recommend a 10% lower with maybe a larger upper instead. but the spacer blanket is great, youre going to add a lot of heat with more boost.

 

[707F6F]

Blower spacer/blanket (still deciding)... this is a seriously great investment and I cant recommend more. Also since you're pinning the crank I would recommend a 10% lower with maybe a larger upper instead. but the spacer blanket is great, youre going to add a lot of heat with more boost.

What is the benefit of a larger upper and underdrive? Same boost in the end or more

 

[MrEditUndo]

What is the benefit of a larger upper and underdrive? Same boost in the end or more

Since youre pinning the crank I would do the lower, there are pros and cons for doing one, the other, or both I believe

 

[twilliamsen]

What fuel 93?

 

[707F6F]

What fuel 93?

91/flex

 

[hellcat chris]

What is the benefit of a larger upper and underdrive? Same boost in the end or more

The benefit to doing a larger upper and 10% lower instead of a smaller upper only is that you get better belt wrap on the upper pulley without the need to use additional idlers increasing the chance of additional friction and unwanted tension

 

[hellcat chris]

I’d recommend a 10% ati lower and a 3.10 upper griptec pulley and also recommend the blower spacers/ blanket also.

 

[707F6F]

I’d recommend a 10% ati lower and a 3.10 upper griptec pulley and also recommend the blower spacers/ blanket also.

I was told a combo like that wouldn't be good as I'm on 91 where I'm at.

 

[MrEditUndo]

I was told a combo like that wouldn't be good as I'm on 91 where I'm at.

Im at high altitude with 91 tune running a 10% ati lower and a 3.10 upper griptec pulley it is extremely recommended

 

[707F6F]

Im at high altitude with 91 tune running a 10% ati lower and a 3.10 upper griptec pulley it is extremely recommended

I'm in the bay area, commifornia as they call it these days. 😪

 

[MrEditUndo]

I'm in the bay area, commifornia as they call it these days. 😪

oof they prob want you to get a 4.10 upper, unpin the crank , black key only with a RT tune on 87

 

[707F6F]

Hahahaha

 

[hellcat chris]

I was told a combo like that wouldn't be good as I'm on 91 where I'm at.

Who told you that? Plenty of people use that combo.

 

[Dragons90]

Tapped hands down!

 

[707F6F]

Do I need an additional tensioner pulley with a 2.85 upper and stock lower?

 

[hellcat chris]

Do I need an additional tensioner pulley with a 2.85 upper and stock lower?

No

 

[HC5120]

Hello all,
I looked around but didn't find my answer. Does anyone know the correct belt to use with the stock lower and 2.85 Griptec upper? Almost have all the parts needed for my build. Just need a few other things. My build is as follows

I have stock lower and a 2.85 upper and spacer plates and the stock belt was the perfect length. The pulley makes the belt needed "shorter" but the spacer plates make the belt needed "longer" so it works out.

When I installed the plates, I also used longer locating dowels for the blower. I pinned my stock lower, too.

 

[HC5120]

Also, for your combo, I'd try to get the 315Rs on the car, especially with the 3.09s you are running.

Driveshaft safety loop?

Upgraded axles?

Do you have the 2.4 IHI blower or the 2.7 blower? Hellcat or Redeye?

I have AAD rear suspension and it helped with consistency but if you race on a sticky track, then you may not need them.