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What converters everyone running on nitrous/th350?

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Old 07-12-2013, 06:36 PM
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Default What converters everyone running on nitrous/th350?

I think I'm going to swap out my converter to see if I can go any faster. I'm thinking the one I have is to small. I was wondering what everyone was running as far as brand/stall size for a th350?

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Old 07-12-2013, 07:05 PM
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PTC or FTI
Old 07-13-2013, 06:47 AM
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Originally Posted by Killer5.3
PTC or FTI
PTC is really good. I use Ultimate Converters in Charlotte NC. Either way to with a custom one for your set up and not an off the shelf. The converter is EVERYTHING.
Old 07-13-2013, 07:02 AM
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FTI 4200-4400 for my setup. Works great and is very street able.
Old 07-13-2013, 07:59 AM
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You're gonna get a ton of opinions on this one. I personally run FTI. This is the way I went about it.

1. What is your goal?
2. Who is running the similar times you wish to ultimately run with a similar combo?
3. What converter are they running and is it doing what they want it to do?
4. Research the said company and look for good and bad posts.
5. Make sure the said company actually races and tests their products regularly.
6. Call said company and see what kind of customer service they offer and who you feel the most comfortable with.

I took this route I took and I went with FTI. They have been great for over 3 years for me and my last restall was spot on.
Old 07-14-2013, 05:43 AM
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Originally Posted by Carter01
You're gonna get a ton of opinions on this one. I personally run FTI. This is the way I went about it.

1. What is your goal?
2. Who is running the similar times you wish to ultimately run with a similar combo?
3. What converter are they running and is it doing what they want it to do?
4. Research the said company and look for good and bad posts.
5. Make sure the said company actually races and tests their products regularly.
6. Call said company and see what kind of customer service they offer and who you feel the most comfortable with.

I took this route I took and I went with FTI. They have been great for over 3 years for me and my last restall was spot on.
THIS^^^^ I will also second FTI. Thats the convertor I ran in my car and it worked great!
Old 07-15-2013, 07:49 AM
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I run PTC converters in all 4 of my cars and couldn't be happier. Very helpful folks.
Old 07-15-2013, 07:57 AM
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PTC 3500 here 4l60 though.. Was specd for a 200 hit but haven't made a pass on it yet.
Old 07-15-2013, 08:54 AM
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Well it seems ptc or fti are good from what you all are posting and what I've read up on them. Now what about stall size? What size you all running and what shot? I'm spraying a 200 shot right now. I
Old 07-15-2013, 10:28 AM
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My FTI was specd for a 200-250. Only hitting it with a 150 right now but she runs great. N/A it stalls around 3800-4000 and on the 150 it stalls around 4400-4500. Your best best is to let the company you end up dealing with determine what stall speed is best. I know Greg asked me a bunch of questions like cam size, drag car or street car, or a little of both, cubic inch, how much spray, etc etc...
Old 07-15-2013, 10:34 AM
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Yep... Lane asked me a ton of question too.

Gear, race weight, where you make max power, all will come into play.

Mine is only a 3500 and is great for driving around town. Don't know exactly what it flashes to.
Old 07-15-2013, 01:54 PM
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What kind of et's are you all running on nitrous?
Old 07-15-2013, 03:02 PM
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I know guys are having luck with PTC but I didn't so I tend to not use them anymore. I have used FTI with great success though. Greg is a good a guy to work with.
Old 07-15-2013, 03:06 PM
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Originally Posted by 87silverbullet
I know guys are having luck with PTC but I didn't so I tend to not use them anymore. I have used FTI with great success though. Greg is a good a guy to work with.
Curiosity since this is a first for me.. Your problem/s?
Old 07-15-2013, 03:29 PM
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Got a 4k stall for a 700r4 from them and it is what they recommended. Put the converter in the car and and it wiped out the the trans. Sent it back. Got the trans fixed. Put our Coan racing 2800 converter while we waited and it ran flawlessly. Got the converter from PTC and put it back in the carand had an immediate vibration issue. Called PTC and they didn't know what was wrong. We didn't either. Took it out and sent it back. They said it was ok. Coan went back in and was fine while we waited for the PTC. We put the PTC back in and it was vibrating as we were making a good test drive on the interstate and before we could get back to the shop it fried the trans.

We sent the trans back to Coan to get built since it was their trans. Pitched the PTC in the garbage and have been using the Coan Racing converter ever since. No issues.
Old 07-15-2013, 03:56 PM
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Originally Posted by 87silverbullet
Got a 4k stall for a 700r4 from them and it is what they recommended. Put the converter in the car and and it wiped out the the trans. Sent it back. Got the trans fixed. Put our Coan racing 2800 converter while we waited and it ran flawlessly. Got the converter from PTC and put it back in the carand had an immediate vibration issue. Called PTC and they didn't know what was wrong. We didn't either. Took it out and sent it back. They said it was ok. Coan went back in and was fine while we waited for the PTC. We put the PTC back in and it was vibrating as we were making a good test drive on the interstate and before we could get back to the shop it fried the trans.

We sent the trans back to Coan to get built since it was their trans. Pitched the PTC in the garbage and have been using the Coan Racing converter ever since. No issues.
Hmmm.. Odd. First issue I have heard with PTC.

At least you got one in running good now.

I wonder if that was some sort of flex plate issue with the PTC? Only thing I could possibly think of.
Old 07-15-2013, 05:10 PM
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I don't see how. The Coan works with no issues. Even started the car without a converter and its feels fine.
Old 07-15-2013, 07:27 PM
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I have an A-1 converter thats been re-worked by Coan.
Old 07-16-2013, 05:21 PM
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I run a FTI 3800 with my 4L60. Works great!
Old 07-17-2013, 07:22 PM
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I spoke with both FTI & PTC and they spec'd out similiar stalls. FTI has a better warranty. I'm waiting to hear back from Circle D now see what they say before I make a decision.


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