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Author: Subject: vauxhall c20let
seakoot

posted on 15/12/08 at 08:48 PM Reply With Quote
vauxhall c20let

Hello!

Can anybody tell me what kind of rwd gearbox would be the best with c20let engine.

thanks

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blakep82

posted on 15/12/08 at 08:50 PM Reply With Quote
type 9 is common and easy enough.





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omega 24 v6

posted on 15/12/08 at 08:56 PM Reply With Quote
As above type nine. Or an omega box if it fits in your tunnel. Remember you'll need to fit a spigot bearing as well.





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blakep82

posted on 15/12/08 at 08:57 PM Reply With Quote
ah, spigot bearing.... now, the guy who built my engine said i'd be fine without one... ?





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omega 24 v6

posted on 15/12/08 at 09:01 PM Reply With Quote
quote:

ah, spigot bearing.... now, the guy who built my engine said i'd be fine without one... ?



HE DID???? I'd doubt it will be fine

ETA was that with the type9 or the omega box??

[Edited on 15/12/08 by omega 24 v6]





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Danozeman

posted on 15/12/08 at 09:09 PM Reply With Quote
Has it got a bronze bush or summit?





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rost

posted on 15/12/08 at 09:09 PM Reply With Quote
There is quite a big amount of play on a T9 input shaft, so I'd definitely recommend a spigot bearing!





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seakoot

posted on 15/12/08 at 09:11 PM Reply With Quote
did omegas have this c20xe 110kw engines?
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omega 24 v6

posted on 15/12/08 at 09:13 PM Reply With Quote
quote:

did omegas have this c20xe 110kw engines?


No but the consensus is that the bolt pattern on the cylinder block is identical. The box is a big wide box though and if you're not building your own chassis then some welding modification will most certainly be required.





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blakep82

posted on 15/12/08 at 09:17 PM Reply With Quote
quote:
Originally posted by omega 24 v6
quote:

ah, spigot bearing.... now, the guy who built my engine said i'd be fine without one... ?



HE DID???? I'd doubt it will be fine

ETA was that with the type9 or the omega box??

[Edited on 15/12/08 by omega 24 v6]


sure did... this was with a type 9, and a x20xev ecotec, so i don't know if the crank/clutch arrangement is much different. i know i needed a different sierra clutch plate than the red top uses. maybe it was a better fit? i have no idea





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seakoot

posted on 15/12/08 at 09:17 PM Reply With Quote
can you please tell me what is the most common gearbox and which bellhousing do I need for that.

What gearbox is this type 9

Sorry for dumb questions

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blakep82

posted on 15/12/08 at 09:19 PM Reply With Quote
quote:
Originally posted by omega 24 v6
quote:

did omegas have this c20xe 110kw engines?


No but the consensus is that the bolt pattern on the cylinder block is identical. The box is a big wide box though and if you're not building your own chassis then some welding modification will most certainly be required.


c20xe, c20let, x20xev and maybe a few others all use the exact same block





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blakep82

posted on 15/12/08 at 09:22 PM Reply With Quote
quote:
Originally posted by seakoot
can you please tell me what is the most common gearbox and which bellhousing do I need for that.

What gearbox is this type 9

Sorry for dumb questions


ford type 9 gearbox comes from most Sierras, bellhousings can be bought for this all over the place. i got mine from yukspeed, though not particularly cheap (mine was £170) they can occasioanlly be had off ebay pretty cheap. there's quite a few manufacturers of the bellhousing.

vauxhall engines and ford type 9 gearboxes are a common conversion in mk1&2 escort rally cars, so parts are faily easily available





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westy turbo

posted on 15/12/08 at 09:24 PM Reply With Quote
I bought a T5,i beleive is the best box for this setup...
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seakoot

posted on 15/12/08 at 09:26 PM Reply With Quote
so this type 9 gearbox is slimmer than the omega box.

does sbd have this bellhousing?

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omega 24 v6

posted on 15/12/08 at 09:27 PM Reply With Quote
quote:

I bought a T5



Your lucky they are strong expensive and quite rare I believe.





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omega 24 v6

posted on 15/12/08 at 09:28 PM Reply With Quote
quote:

does sbd have this bellhousing?



Yes as well as Yukspeed
Qed
Aframe engineering
Etc etc





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westy turbo

posted on 15/12/08 at 09:28 PM Reply With Quote
Youre right bought it for 800 euros which is alot.......
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blakep82

posted on 15/12/08 at 09:29 PM Reply With Quote
yep, sbd have them, be careful, there's 4 different types!

first up, if you install the engine to sit at a 7 degree angle (as they do in FWD setups) you need the 7 degree type to hold the gearbox straight. for vertical installations there's a vertical type.

3 ltre capris have a type 9 box with a longer input shaft, so there's 2 different lengths on bellhousing to accomodate. 153mm (which is for the short input shaft) and a longer one for the capri box

[Edited on 15/12/08 by blakep82]





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seakoot

posted on 15/12/08 at 09:34 PM Reply With Quote
has anybody got experience with that

http://www.quaife.co.uk/Ford-Sierra-5-speed-Clubman-synchromesh-gearbox-steel-maincase

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grahamgg

posted on 15/12/08 at 11:06 PM Reply With Quote
you can also fit an opel manta 1.8 gearbox but you have to fit engine at 7 degrees, The omega box is huge.

I would suggest a type nine, then you can fit engine level, and you have a better choice of changing the ratios and upgrading to a beefed up type 9 when you blow the standard one up ( which will happen ).

[Edited on 15/12/08 by grahamgg]

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liam.mccaffrey

posted on 15/12/08 at 11:13 PM Reply With Quote
FYI
I have 2 x 1.8 manta boxes for sale and also a bag of the spigot bearings.

Though they may not be strong enough for a LET





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MikeRJ

posted on 15/12/08 at 11:16 PM Reply With Quote
A standard C20LET is 204bhp, 206 lbft. I suspect that a standard Type 9 will have a limited life expectancy. The BGH Geartech uprated boxes should be ok, but they aren't cheap.

[Edited on 15/12/08 by MikeRJ]

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