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Location:
Tasmania
Registered:
May 2002
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Re: NA 3TG/2T Hybrid
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Mon, 07 July 2003 10:17
 
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I am also doing this converion right now. I have fully resurched it and think I have all the answers (to biuld a generic 3T-G that is).
Block to use:
Any, 2T or 3T. Early 2T will need some grinding but can be used.
Pistons: Must be 3T. For cheap use 3T-C pistons, avaliable up to 86mm. The exhaust valve relief has to be machined a bit deeper. 3T-GTE pistons would give a low compression, don't use. 86mm = 1813cc
85mm = 1770cc
For good pistons: Get custom forged. They are avaliable for 3T/ 3TG engines. Come ready in 89mm and big valve reliefs. One brand is Wisco I think. Also KB. 89mm = 2 liters
Crank: Must use a 3T crank! This is the main bit. No one has determined a different between 3T-C and 3T-GTE, they may be the same. 3T has a 78mm stroke, and 8 counter weights. 2T crank has 4 counterweights.
Rods: Any 2T- 3T rods can be used, same dimentions. Some are stronger/weaker. The only way to be sure is to have 2 sets and compare. Any will work fine.
Head: 2T-G or course! Early 88220 heads had smaller valves, all the rest have the bigger valves.
Prepare the 3T block for twincam. Rotate the unused cam bearings to cover the oil holes. (Take them out and put back in at a different position). A cheap 3T-C or 2T head gasket can be used, if you make some gasket for the front bit yourself. Saves alot of money needed for a 2T-G head gasket.
Flywheel: Any will fit, but use the lightest you got. I am lightening mine quite a bit.
Camshafts: 88222 cams work well, 256 degrees with alot of lift, about 10.5mm I think. Later ones had less duration but there is very little difference. I am going to try some reground 305.5 cams I have ready.
Intake: My choice is stock 40mm Solex sidedrafts on the stock manifold. Just for the wide open throttle sound at the race track. Its cheap power! No wires or computer. Mechanical fuel pump seams to work fine on my 1600cc so far also, not sure about 1800cc.
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| | Subject | Poster | Date |
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NA 3TG/2T Hybrid
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Cool1 | Sun, 06 July 2003 13:02 |
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Re: NA 3TG/2T Hybrid
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Henn | Sun, 06 July 2003 13:28 |
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Re: NA 3TG/2T Hybrid
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Cool1 | Mon, 07 July 2003 01:17 |
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Re: NA 3TG/2T Hybrid
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EMP-2TG | Mon, 07 July 2003 04:41 |
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Re: NA 3TG/2T Hybrid
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Cool1 | Mon, 07 July 2003 05:15 |
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Re: NA 3TG/2T Hybrid
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xxaccoxx | Mon, 07 July 2003 09:29 |
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Re: NA 3TG/2T Hybrid
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Jonny2TG | Mon, 07 July 2003 10:17 |
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Re: NA 3TG/2T Hybrid
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Cool1 | Mon, 07 July 2003 10:25 |
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Re: NA 3TG/2T Hybrid
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xxaccoxx | Mon, 07 July 2003 11:03 |
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Re: NA 3TG/2T Hybrid
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xxaccoxx | Mon, 07 July 2003 11:25 |
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Re: NA 3TG/2T Hybrid
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thetoyman75 | Mon, 07 July 2003 13:43 |
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Re: NA 3TG/2T Hybrid
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Cool1 | Mon, 07 July 2003 14:01 |
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Re: NA 3TG/2T Hybrid
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thetoyman75 | Tue, 08 July 2003 11:28 |
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Re: NA 3TG/2T Hybrid
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Cool1 | Tue, 08 July 2003 11:58 |
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Re: NA 3TG/2T Hybrid
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TA22-3SGTE | Tue, 08 July 2003 12:49 |
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Re: NA 3TG/2T Hybrid
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Cool1 | Tue, 08 July 2003 12:56 |
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Re: NA 3TG/2T Hybrid
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TA22-3SGTE | Tue, 08 July 2003 13:22 |
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Re: NA 3TG/2T Hybrid
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Jayem | Tue, 08 July 2003 16:29 |
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Re: NA 3TG/2T Hybrid
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Donuts | Tue, 08 July 2003 20:42 |
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Re: NA 3TG/2T Hybrid
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ta2272 | Sat, 27 December 2003 02:23 |
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Re: NA 3TG/2T Hybrid
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thetoyman75 | Sun, 28 December 2003 12:42 |
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Re: NA 3TG/2T Hybrid
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Jayem | Sun, 28 December 2003 14:11 |
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