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Author
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Topic: Drag racing C-4 tranny ???
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steve'66
Gearhead Posts: 9835
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 10-29-2001 06:48 PM
 
Help!I'm not a pink tee shirt kinda guy, but we're gonna try a C-4 in Melissa's stang anyway. So, which one? What converter? Whose got the best tranny for the $$? JPT, TransKing, ? How do I contact JPT? How about converters? Coan, Continental, or ? Thanks in advance, I gotta get something on its way, since the 5 speed setup is sold!  Also should the C-4 be a 70+, dipstick in case or pan? Go ahead and call me stupid, it's true when it comes to automatics.   Which shifter? It'll have a brake too, SteveW
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kid vishus
Gearhead Posts: 7251
From: middle of NC
Registered: Oct 2000
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posted 10-29-2001 07:47 PM
Ok, here's my opinion. I have a Coan convertor that was custom built for my combination. All the "good" companies custom build their convertors. ATI, JPT, Continental are all good convertors. Call around till you talk to someone you feel comfortable with. For me, it's Craig at Coan. As for trannies, the dipstick in the pan C4 is supposedly stronger than the case fill. Mine is a pan fill model. Also, definately buy a good hardened input shaft. I was told the stock ones are only good for around 500 HP. My trans is/was a Transking. It has been gone thru several times since then, so about the only thing left that is theirs, is the billet servo cover, and the Pro-Brake. I would seriously consider buying a Performance Automatic (PA), or a JPT if I were to do it again.
In both my cars, I run and did run(granada) the B&M Pro stick shifter. It works good, is fairly cheap, and I have never had any problems with either of them. And swithches for the brake. I have an adjustable switch made by Moroso. It may be more mental than a physical help, but the swithc is fast, and I have never had one fail me. Having a cheap switch fail in the late rounds is extremely frustrating. I had that happen one time.  Wow, I can get long winded
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kid vishus
Gearhead Posts: 7251
From: middle of NC
Registered: Oct 2000
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posted 10-29-2001 07:49 PM
OOPS,
forgot something.You're gonna need a trans sheild too. I have a CSI on mine. It's a nice peice, but until we modified it a little, it was a real pain in the a$$ to get the shifter cable bracket on. But, part of that in my case was due to my headers being in the way.
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Blu Dawg
Journeyman Posts: 60
From: Texas
Registered: Oct 2001
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posted 10-29-2001 10:39 PM
I would suggest talking to Dynamic transmissions. They do all their work in house, and have the fastest C-4's on the market. Mighty Mite, it the big one that they use, comes with EVERYTHING! And these guys know their trannies. Just my 2cents.------------------
Brad H.
Blue '68 Cali. Special, 3.50's in a disk break 9 in., 4-bolt main SVO 351W w/3.750 stroke crank, 6.250 h-beam rods, 10.5:1 comp, 9 in. convertor C-4 Best time motor 11.40 @116.87 (7.23 @95 1/8)
Best N2O 10.60 @127 (6.76 @103 1/8)
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Moneymaker
Administrator Posts: 29200
From: Lyons, IL, USA
Registered: May 99
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posted 10-29-2001 11:38 PM
Fastest C-4's in NHRA or IHRA are from JPT period! NO BRAG, JUST FACT!
Quickest and fastest big block automatic Ford Superstocker: Gene McBean 69 428 CJ Mustang SS/FA record holder.
Quickest and fastest small block automatic Superstocker: ME ! SS/LA 65 289 Mustang.
Both JPT C-4 equiped. JPT 517-663-0578 or [email protected]. Tell them that Alex sent you. ) Dynamic is high quality stuff also, as is Coan. Trans King is Junk and ATI will sell you what they have on the shelf that needs to go.
Still, no other transmission company has done more to develope and improve the C-4 than JPT. Look in the back of National Dragster or Drag Review, or go on to their websites and check out the record holders in the automatic classes that are FoMoCos. 9 out of 10 are JPT equiped. Alex------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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kid vishus
Gearhead Posts: 7251
From: middle of NC
Registered: Oct 2000
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posted 10-30-2001 05:53 AM
quote:
Originally posted by Moneymaker:
....ATI will sell you what they have on the shelf that needs to go.
I did not know that. 
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steve'66
Gearhead Posts: 9835
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 10-31-2001 09:57 PM
Guys,
Please help me out here. I talked to several of the tranny suppliers today and got mixed messages. One said I don't need a rollerized tranny for a reliable bracket car, JPT said it would only take a .10 off the timeslip at best. JPT also said to avoid Alex's setup 'cause it wasn't reliable (for a bracket racer). It was great if you're trying to break a National record, but not advisable if you want it to last for a couple hundred rounds. I appreciated that advice! They are a bunch of great guys at JPT!
Since we're not interested in breaking a record, only running the "number", What do you think? As far as converters, all except one agreed that a $700-800 unit was required for running a t-brake, one said we could use a $500 unit if we launched with a two-step and let it flash to the stall speed. What do you all think? Should the flash of the converter coincide with the maximum torque? Should it be slightly before it or behind it? I understand that we want the converter to lock up before the traps, should it flash (how far behind the trap rpm)? Any thoughts will be appreciated!! Thanks!SteveW
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kid vishus
Gearhead Posts: 7251
From: middle of NC
Registered: Oct 2000
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posted 11-01-2001 05:58 AM
I ran my trnas for years without it being rollerized and it worked great. I finally rollerized mine becouse the planetaries that were in it were getting abd, and I wanted to go a little faster, and since my lil motor doesnt make any torque, I figured it would just free up some already available power.I launch with a 2 step, and honestly, a $500 convertor would scare the he!! out of me. Even using my 2 step, I broke a $700 TCI 8" several years ago. I'm not sure how the rest of that works, I figure thats part of what they are getting so much money for is to figure out what stall I should have.
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Blu Dawg
Journeyman Posts: 60
From: Texas
Registered: Oct 2001
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posted 11-01-2001 08:51 AM
I called the guys a JPT, and they seemed really helpful. One thing I did like about Dynamic though was the one year warrenty, and the lifetime rebuilds for less than $200!!! They have a few fox bodied cars with their Mighty Mite running in the mid. 8's, and these things are 3,000+ pound cars at race weight!!------------------
Brad H.
Blue '68 Cali. Special, 3.50's in a disk break 9 in., 4-bolt main SVO 351W w/3.750 stroke crank, 6.250 h-beam rods, 10.5:1 comp, 9 in. convertor C-4 Best time motor 11.40 @116.87 (7.23 @95 1/8)
Best N2O 10.60 @127 (6.76 @103 1/8)
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