ATI 4th Gen underdrive pulley *LOOK*

[Disturbed]

Yes I agree need more information. I also had a 20% on my neon and for a small four banger it moved plus got 30-32 mpg all day long.

 

[greychevy]

We are half way there guys. Waiting to hear back from a few guys on the other forum. Should be able to hit our number

1. GreyChevy
2. Tylerb
3. Bluebeast
4. 09smokinhemi
5. fasthemiram05
6.
7.
8.
9.
10.

 

[TylerB]

I wish it was closer to 15-20%. Did they mention any reason why it was gonna be 10-15%?

 

[greychevy]

I wish it was closer to 15-20%. Did they mention any reason why it was gonna be 10-15%?

Nope but I'm gonna push for it to be at least 15%. I had the 20% summit one on my 06

 

[fasthemiram12]

Too bad there's no truck length OD pulley, I always want to spin the supercharger faster.

ATI sells a 6% OD for the 4th gen ram

 

[greychevy]

I just emailed them again to see if we can get it in the 15-20% range

 

[smokinstorm]

If you can get it 20%, I'm in for sure. If only 15%, I need to think about it but I'll probably do it anyhow. Let me know as soon as you find out. Thank you. In the past I've always had custom pulleys made in the 40-50% underdrive range but they really do compromise things in a daily driver at that percentage underdrive. 20-25% is just about perfect for a daily driver with no compromises execet for the AC not being quite as cold at idle. I can't afford to have somone do a custom pulley for the Ram as it's going to require having a dampened pulley and not just a bolt on one.

 

[greychevy]

Four more to go guys. Should have at least 10 by Monday.

1. GreyChevy
2. Tylerb
3. Bluebeast
4. 09smokinhemi
5. fasthemiram05
6. Nichocha33
7.
8.
9.
10.

 

[smokinstorm]

Waiting on info on %...
They should be able to make it anything we want.

 

[greychevy]

Waiting on info on %...
They should be able to make it anything we want.

Will let you know when I hear back.

 

[smokinstorm]

Will let you know when I hear back.

Thank you, Sir.

 

[greychevy]

Just heard back and it looks like we will be at 14-15%. Still looking for four more guys to jump on board.

 

[greychevy]

Three more to go guys. Should have the last 3 shortly

1. GreyChevy
2. Tylerb
3. Bluebeast
4. 09smokinhemi
5. fasthemiram05
6. Nichocha33
7. MrHemi
8.
9.
10.

 

[rustydagger]

If I get my truck back from the dealer before Monday, I'll do it. Maybe a spot will stay open

Sent from my SGH-T999 using Tapatalk

 

[greychevy]

Ok, let me know. We can do over 10 but the minimum required to order is 10.

 

[smokinstorm]

Just heard back and it looks like we will be at 14-15%. Still looking for four more guys to jump on board.

Is it possible for them to make one in the 20-25% and just the first batch will be 14-15% or is 14-15% the only one they will be able to do ever? If 14-15% is the most underdrive % they will ever be able to do, I'm in on this. Thank you.

 

[greychevy]

Here is the email and the PDF. I'm pretty sure the damper can't be moved back:

Looks like we can get to 14-15% max. However if there is room to move the Damper itself back, closer to the engine, and then bolt on a pulley to the front, we can then go to 15-20% very easily. I do not like to be more than a 15% UD for street cars though. You can get into charging issues, and cooling issues at low speed. We reserve 20-25% UD for racecar's only. See the attached PDF for what our damper looks like now. Picture the Ribs staying in the same place, and then the damper insides moving back. I have no clue if there is room. This is one of the longest dampers we build!

 

[sewardmark]

What was the answer for different belt size? Not worried about cooling, I have v6 FAN swap, and mechanical FAN delete, so wondering what the increase in power would be for this setup?

 

[smokinstorm]

Here is the email and the PDF. I'm pretty sure the damper can't be moved back:

Looks like we can get to 14-15% max. However if there is room to move the Damper itself back, closer to the engine, and then bolt on a pulley to the front, we can then go to 15-20% very easily. I do not like to be more than a 15% UD for street cars though. You can get into charging issues, and cooling issues at low speed. We reserve 20-25% UD for racecar's only. See the attached PDF for what our damper looks like now. Picture the Ribs staying in the same place, and then the damper insides moving back. I have no clue if there is room. This is one of the longest dampers we build!

Sent you a PM.

 

[greychevy]

Sent you a PM.

Aight

What was the answer for different belt size? Not worried about cooling, I have v6 FAN swap, and mechanical FAN delete, so wondering what the increase in power would be for this setup?

Not sure what the question was but it will require a shorter belt if that's what you are asking. As Matt said, it should be about 8-12 RWHP.

Two more to go guys. Should have the last 2 shortly

1. GreyChevy
2. Tylerb
3. Bluebeast
4. 09smokinhemi
5. fasthemiram05
6. Nichocha33
7. MrHemi
8. VA4MEDS
9.
10.