FD transmission solution for 500+ hp
11-08-12, 05:25 PM
#102
Just an update on my conversion ^^^^^^
After many attempts with the bell quicktime sent, they have finally come to the conclusion that it is a casting error and the bell is incorrectly sized as they have changed thickness in metals. No wonder the starter was 10mm or so from engaging with flywheel. Anyway a new one should be on the way shortly to Australia.
After many attempts with the bell quicktime sent, they have finally come to the conclusion that it is a casting error and the bell is incorrectly sized as they have changed thickness in metals. No wonder the starter was 10mm or so from engaging with flywheel. Anyway a new one should be on the way shortly to Australia.
I called quicktime a while back after gforce told me thats the supplier they use. I was about to order one. Glad you found this out. Keep us updated on your progress.
11-02-13, 11:10 AM
#103
Racing Rotary Since 1983
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update on my T56:
there has always been a question of whether it shifts at high rpm.
i have a garden variety T56 from the boneyard.... F body w 60,000 miles... i recently ran it at the Texas Mile.
shifted absolutely fine thru 5 gears at 8800.
howard
there has always been a question of whether it shifts at high rpm.
i have a garden variety T56 from the boneyard.... F body w 60,000 miles... i recently ran it at the Texas Mile.
shifted absolutely fine thru 5 gears at 8800.
howard
11-03-13, 01:05 PM
#104
Came across this on jegs. QuickTime bellhousing adapter. May be worth a look.
Quick Time Bellhousing RM-4091 Quick Time Mazda Engine Adapter Bellhousings - Free Shipping on All Orders @ JEGS
Quick Time Bellhousing RM-4091 Quick Time Mazda Engine Adapter Bellhousings - Free Shipping on All Orders @ JEGS
11-04-13, 10:24 AM
#106
How about the "feel" though.
Every T56 I've ever driven feels like a truck. Is there a short shifter/mechanism that make the action feel better, and the arm/**** smaller?
By comparison (of high HP transmissions), the Supra Getrag feels awesome—if you could get the right ratios for it, that would be a worthy conversion to me.
Every T56 I've ever driven feels like a truck. Is there a short shifter/mechanism that make the action feel better, and the arm/**** smaller?
By comparison (of high HP transmissions), the Supra Getrag feels awesome—if you could get the right ratios for it, that would be a worthy conversion to me.
11-04-13, 11:55 AM
#107
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"By comparison (of high HP transmissions), the Supra Getrag feels awesome"
They do fell pretty dam good and subjectively may take more abuse. Too bad there not as plentiful as the T56
They do fell pretty dam good and subjectively may take more abuse. Too bad there not as plentiful as the T56
11-04-13, 02:54 PM
#108
I believe GForce has or is working on a adapter plate for the T56, you will have to use T2 starter.
https://www.facebook.com/pages/G-For...58348597542088
https://www.facebook.com/pages/G-For...58348597542088
11-05-13, 12:48 AM
#109
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Tremac gearbox conversion
Pick the tremac box (Based on the T56) that obviously suits your needs and budget. To get any tremac box to fit closely to the FD tunnel hole, the F body(rear half of box) will need changing to suit. I went with a brand new Mal Wood Auto( http://www.malwoodauto.com.au/ ) TR6060 gbox because of gear ratios and cost. This box is used in the late model FG xr6 turbo and v8 falcon's. He also supplied me with a quicktime bell (RM 4091). Long story short this was the major sticking point as it didn't fit, with the starter not engaging into the flywheel. 13b's have only 2 flywheels options, it was supposed be a turbo flywheel with a auto starter motor. Anyway after a 2nd one was sent from the US, Maztech ended up cutting and lowering the starter mounting platform to get the teeth to engage. A 1" wilwood clutch master was also upgraded to suit the tilton push/pull hydraulic conversion used as well. A spigot bearing had to be turned down to fit as well. A new twin plate DCS clutch and flywheel was sourced from Drew ( Clutches - International supplier clutch kits, clutch parts, clutch plates, clutch cylinder ). Due to the removal of PPF I sourced a Justin Samberg V8 conversion type diff cradle and gbox mt. ( http://www.norotors.com/index.php?topic=126.0 ) The gbox mt was heavily modified to adapt. Tailshaft was measured up and a new 31 spline yoke fitted with uni joints. Another major sticking point was the gbox hitting the tunnel, so I had it heavily modded to suit from the guys that build tunnels for drag car setups. (Mcdonald Bros) This allowed the box to be removed in 1 piece rather than in 2. I have probably missed a few things but thats the basis to it all. Was very happy with its outing at Winton a few weeks back, box stayed together with around 500rwhp and had no issue changing smoothly/quickly. Ratio's I found suited that particular track, even though I only used 2 to 4th. Phillip Island or EC will be the only track that might see the 6th gear. Definitely was not the cheap option to go with, but so far , so good.
Jase
Pick the tremac box (Based on the T56) that obviously suits your needs and budget. To get any tremac box to fit closely to the FD tunnel hole, the F body(rear half of box) will need changing to suit. I went with a brand new Mal Wood Auto( http://www.malwoodauto.com.au/ ) TR6060 gbox because of gear ratios and cost. This box is used in the late model FG xr6 turbo and v8 falcon's. He also supplied me with a quicktime bell (RM 4091). Long story short this was the major sticking point as it didn't fit, with the starter not engaging into the flywheel. 13b's have only 2 flywheels options, it was supposed be a turbo flywheel with a auto starter motor. Anyway after a 2nd one was sent from the US, Maztech ended up cutting and lowering the starter mounting platform to get the teeth to engage. A 1" wilwood clutch master was also upgraded to suit the tilton push/pull hydraulic conversion used as well. A spigot bearing had to be turned down to fit as well. A new twin plate DCS clutch and flywheel was sourced from Drew ( Clutches - International supplier clutch kits, clutch parts, clutch plates, clutch cylinder ). Due to the removal of PPF I sourced a Justin Samberg V8 conversion type diff cradle and gbox mt. ( http://www.norotors.com/index.php?topic=126.0 ) The gbox mt was heavily modified to adapt. Tailshaft was measured up and a new 31 spline yoke fitted with uni joints. Another major sticking point was the gbox hitting the tunnel, so I had it heavily modded to suit from the guys that build tunnels for drag car setups. (Mcdonald Bros) This allowed the box to be removed in 1 piece rather than in 2. I have probably missed a few things but thats the basis to it all. Was very happy with its outing at Winton a few weeks back, box stayed together with around 500rwhp and had no issue changing smoothly/quickly. Ratio's I found suited that particular track, even though I only used 2 to 4th. Phillip Island or EC will be the only track that might see the 6th gear. Definitely was not the cheap option to go with, but so far , so good.
Jase
11-05-13, 12:49 AM
#110
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11-06-13, 01:56 PM
#113
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"Another major sticking point was the gbox hitting the tunnel,"
wow, maybe because you are installing a Tremac versus my Tremec. i had no tunnel problems. further, i wouldn't touch the tunnel as it is the backbone of the chassis.
i looked at the Getrag option but as i recall they offered only a 1 to 1 top gear. my F body delivers ideal close ratios.
as to shift feel... i have a Lou's short shift stick and love the precise feel of the box. i am using a GTO shift mechanism to relocate the shifter to the center of the OE hole. i do realize that the stock box is lotus-like and that's cool... it just didn't quite fit my needs.
given all of the sagas re the T56 conversion i consider my setup using a Mazda bellhousing/starter/auto iron/adapter plate/samberg/quartermaster a simple deal.
love it.
howard
wow, maybe because you are installing a Tremac versus my Tremec. i had no tunnel problems. further, i wouldn't touch the tunnel as it is the backbone of the chassis.
i looked at the Getrag option but as i recall they offered only a 1 to 1 top gear. my F body delivers ideal close ratios.
as to shift feel... i have a Lou's short shift stick and love the precise feel of the box. i am using a GTO shift mechanism to relocate the shifter to the center of the OE hole. i do realize that the stock box is lotus-like and that's cool... it just didn't quite fit my needs.
given all of the sagas re the T56 conversion i consider my setup using a Mazda bellhousing/starter/auto iron/adapter plate/samberg/quartermaster a simple deal.
love it.
howard
11-06-13, 08:17 PM
#114
Stock gearbox with an upgraded mainshaft with internal treatments from Liberty Gears is an affordable option that works. Haven't been able to break it yet circuit racing with 650 rwhp and 500 ft/lbs of torque on my 20b with 335 Hoosier slicks.
thewird
thewird
11-06-13, 08:30 PM
#115
The T-56 Magnum is more stout a d has triple synchros for a slick shift. The TR6060 is also a much better trans particularly with shift feel.
My T-56 isn't too bad but it def doesn't shift as quick as the stock FD box.
The pro 5.0 shifter with the steeda Tri-ax handle puts the T-56 shift locations perfectly where the FD trans was.
The shifting is very positive but like it was stated it is somewhat truck like but not really.
My T-56 isn't too bad but it def doesn't shift as quick as the stock FD box.
The pro 5.0 shifter with the steeda Tri-ax handle puts the T-56 shift locations perfectly where the FD trans was.
The shifting is very positive but like it was stated it is somewhat truck like but not really.
11-07-13, 02:28 AM
#116
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What was the cost for them to upgrade it?
11-07-13, 10:58 AM
#118
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I'm on a 13b so no where near as much torque, do you think it will put up with the abuse of drag launches?
11-07-13, 02:41 PM
#121
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11-07-13, 03:07 PM
#122
The car really just needs a 6-speed.
11-07-13, 03:42 PM
#123
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Well, I've got a stock 4:1, and a short 5th. Wouldn't want them any higher for track use. Would maybe want them lower (like the equivalent of a 4:3), but then the 5th would be too short for street/highway use. It already is, actually. I certainly wouldn't want more space between the same number of gears.
The car really just needs a 6-speed.
The car really just needs a 6-speed.
11-09-13, 12:24 PM
#124
They took a little longer than they estimated, so plan accordingly. But the work was first rate. I saw the internals before reassembly. It honestly looked like one of the cutaways you see at an autoshow -- the gears were all polished to a mirror finish as one of the steps in the treatment process. They even media-blasted the housing, making it look brand new.
11-09-13, 01:05 PM
#125
thewird