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  #13  
Old 02-17-2010, 11:58 AM
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Re: Transmission Line Pressure Booster

Quote:
Originally Posted by Nick.Nevada View Post
Thank you!
I have found it on Paramaunt Performance. It's really impressive.
BUT... custom valvebody is not the same thing as Line Pressure Booster. Valvebody is a real tune-up the transmission. The booster is simply electrical trick. Am I right? And prices are different....
AFAIK, the booster is needed for the 545RFE tranny (Overland/Limited). The Valvebody is the upgrade on the NAG1 tranny (SRT8).

Quote:
Originally Posted by boniomario View Post
Peter spill the beans here please
I wanna know too ... LOL
Sheesh -- we have to get Bill on here as a supporting vendor (if I get banned its your fault!) ;D
Paramount Performance Products. Bill makes the best driveline upgrades for SRT Jeep and the LX/LC cars (charger, 300c, challenger). I believe he can also work on the 545RFE tranny as well but I'll have to double-check that.
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  #14  
Old 02-17-2010, 01:40 PM
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Re: Transmission Line Pressure Booster

i noticed a big difference with the booster installed. The truck seems to have got used to it a little but it definatley is a nice improvement over stock. Like it says, you notice it A LOT more at WOT but the difference can be felt overall. It also shifts a lot quicker.
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  #15  
Old 02-17-2010, 08:17 PM
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Re: Transmission Line Pressure Booster

BTW, I heard from Bill (Paramount Performance) today, so just to whet your appetites:

My flex plates for 545RFE are about 3 weeks out and the torque converters are ready for testing. They are based on the highly successful NAG1 converters although the 545 converter will have a billet cover which the NAG1 does not. The 545RFEs I have built previously are holding up well.
----

How's them apples?
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  #16  
Old 02-17-2010, 08:52 PM
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Re: Transmission Line Pressure Booster

Where are they located? I heard of a local SRT8 with a turbo 427 in it and he had a tranny built in North Carolina i believe? Only good aftermarket tranny i've heard of is from Sharadon Performance in Minnesota

I search for Paramount and found a company based in the UK, is this them?
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Old 02-17-2010, 08:58 PM
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Re: Transmission Line Pressure Booster

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Originally Posted by 555ctsv View Post
Where are they located? I heard of a local SRT8 with a turbo 427 in it and he had a tranny built in North Carolina i believe? Only good aftermarket tranny i've heard of is from Sharadon Performance in Minnesota

I search for Paramount and found a company based in the UK, is this them?
Paramount Performance Products -- in NC.
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  #18  
Old 02-18-2010, 02:10 AM
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Re: Transmission Line Pressure Booster

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Originally Posted by pjs1965 View Post
AFAIK, the booster is needed for the 545RFE tranny (Overland/Limited). The Valvebody is the upgrade on the NAG1 tranny (SRT8)..
Yes, it's clear. I mean, why for upgrade NAG1 it is necessary complex and expensive Valvebody, and for 545RFE enough simple and cheap Booster? Ask Bill please about Line Pressure Booster for NAG1 tranny

By the way, the NAG1 (W5A580) transmissions are installed on 3.7L and Diesel WKs, not only on SRT8
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Old 02-18-2010, 09:39 AM
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Re: Transmission Line Pressure Booster

Quote:
Originally Posted by Nick.Nevada View Post
Yes, it's clear. I mean, why for upgrade NAG1 it is necessary complex and expensive Valvebody, and for 545RFE enough simple and cheap Booster? Ask Bill please about Line Pressure Booster for NAG1 tranny

By the way, the NAG1 (W5A580) transmissions are installed on 3.7L and Diesel WKs, not only on SRT8
There is an option to replace the solenids with Blue Tops ones from MB. It's less expensive than the valvebody upgrade but then you're on your own. Paramount will warranty the valvebody.
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  #20  
Old 02-18-2010, 09:59 AM
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Re: Transmission Line Pressure Booster

Thank you Peter!
There is no Line Pressure Booster for NAG1 tranny in other words. It's a pity as the booster is simpliest way for tranny upgrade. Ten minutes and it is ready. Enjoy!
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  #21  
Old 02-18-2010, 10:05 AM
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Re: Transmission Line Pressure Booster

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Originally Posted by hemi.jon View Post
so i got this wire thingie to try out about 3 weeks ago now..ive noticed the shifts do have a little bit more of a firmer feel under a hard accel. this wasnt something you notice like "holy crap my trans is totally different" but u do notice a little something..this weekend ill hook my boat up and give it a tow..i just havent done it yet to try it.

as far as worth $50?
its up to you. your not going to feel $50 difference. but it supposedly is holding the clutches tighter which would be a payoff. so that is my input so far.
Any downsides?
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Old 02-18-2010, 10:10 AM
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Re: Transmission Line Pressure Booster

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Originally Posted by xoxSTUGOTSxox View Post
Any downsides?
I'm curious too. I can't help but think the cooler line fittings would be more likely to leak with more pressure.
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  #23  
Old 02-18-2010, 02:30 PM
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Re: Transmission Line Pressure Booster

I think it only raises pressure at certain parts in the tranny? I dont think the whole system is sealed or else you'd probably shoot the dipstick into the engine bay. I think the dipstick enters right above the cooler lines. But who knows it could increase that issue for sure. I think it's only like a 15psi difference though
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  #24  
Old 04-02-2011, 05:14 PM
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Re: Transmission Line Pressure Booster

I tryed to install my Sonnax Line Booster but had a hard time taking off plug on the tranny does anyone who installed one on a Jeep WJ have any suggestions on how i can remove it
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