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#1
12-22-2022, 11:18 PM
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Cam and stock converter
It's been a long time since running a stock converter. I just got done building a 200r4 trans for my street car. Looking up the numbers It stalls at 1500-1600 with the original 305 engine. I am building a 400 with small cam to replace the 455 in it now.
I want to install it in the car now with the 455. Replacing the th400 with 10" converter. It has a cam like the ram air 4 (.234/244 on 112). How will a stock converter act with this cam? Will it die when I put it in gear? I want to get the trans dialed in before I put the new engine in a couple months from now. |
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#2
12-22-2022, 11:58 PM
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Cliff???
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1977 Black Trans Am 180 HP Auto, essentially base model T/A. I'm the original owner, purchased May 7, 1977. Shut it off Shut it off Buddy, I just shut your Prius down... 
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#3
12-23-2022, 12:43 AM
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Good question. Running a mostly stock 200 4r behind my 400 since august. Shift kit along with governor mods to get the WOT shift correct, shifts around 5000rpm now.
Wondering about a better convertor as well. |
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#4
12-23-2022, 08:12 AM
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455 with a Ram Air cam? Well I have an .030 over 455 with 87cc Edelbrock heads and the Crower 60919 which is based on the Pontiac 041. I have a basically stock converter. With street tyres I have to leave from idle and apply throttle gently. Anything else blows the rears into smoke. So I can’t see why it would be an issue for you if you aren’t on slicks or DOTs.
Sam
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-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
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#5
12-23-2022, 11:34 AM
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I have a T200-4R with a Precision 10 inch LOCKUP converter behind a 600 hp engine with good luck.
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#6
12-23-2022, 12:57 PM
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Grand nationals came with a D5, lock up, stock converter, 2800 stall at 0psi usually. These are still around if you're looking for one in your 200.
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69 GTO Convertible, 4000lbs 462ci, 606tq/569hp - 93 oct at 34 deg (207psi) 11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10" 0 Stat, Ricks SS Gas Tank, Magna 4303, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" Headers & Borla Pro XS 3" Muffs, Alum Rad & Dual Fans, 12:1 Box, UMI Control Arms & Viking Berz Fr + Rear CO Shocks, Hella UP28 Vac Pump |
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