Daiboy1 Posted November 26, 2021 Share Posted November 26, 2021 Project images are available to Club Members Only, Click to become an OMOC Member. Project images are available to Club Members Only, Click to become an OMOC Member. Project images are available to Club Members Only, Click to become an OMOC Member. Project images are available to Club Members Only, Click to become an OMOC Member. 9 Quote Link to comment Share on other sites More sharing options...
Ems Posted November 26, 2021 Share Posted November 26, 2021 Nice Manta, looks like mine but in much better condition! What pedal box are you using? Quote Link to comment Share on other sites More sharing options...
Daiboy1 Posted December 18, 2021 Author Share Posted December 18, 2021 Floor mounted, still thinking about how to fit though Hi, any gearboxes available Quote Link to comment Share on other sites More sharing options...
®evo03 Posted December 18, 2021 Share Posted December 18, 2021 Nice looking car, nice project, are you looking a manta or any gm box? Some pics of your floors, and if you need advice, just ask, your on the right place for manta advice, 1 Quote Link to comment Share on other sites More sharing options...
Daiboy1 Posted December 19, 2021 Author Share Posted December 19, 2021 Hi. Got a red top , so what gearbox would you recommend. This is the pedal box I'm fitting,any advice would be great. Cheers Dai Project images are available to Club Members Only, Click to become an OMOC Member. Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted December 19, 2021 Share Posted December 19, 2021 If your Redtop is lower than 250bhp, then a Getrag240 from the 1.8 will be fine, and will drop straight in obviously. Pedal box wise, there is not much room behind the pedals natural position before the kick panel has a large radius for wheel clearance. I doubt there is enough room without moving the pedal position effectively closer to the seat, and that impacts steering wheel position. One that sits under the dash would be preference to floor mount imo. Quote Link to comment Share on other sites More sharing options...
Paul Barrett Posted December 19, 2021 Share Posted December 19, 2021 You will struggle for placement as said with that pedal box. only really good if you move the seat back and have a deep dished steering wheel. on the flip side, easily sorted for a hydraulic clutch for the r25-28 omega box with that pedal box Quote Link to comment Share on other sites More sharing options...
Daiboy1 Posted December 19, 2021 Author Share Posted December 19, 2021 Are them gearbox's readily available.cheers Engine's running about 260 on 48s Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted December 19, 2021 Share Posted December 19, 2021 1 hour ago, Daiboy1 said: Are them gearbox's readily available.cheers Engine's running about 260 on 48s Might be better looking for an R28 box as it's a bit stronger then. All about as rare as each other. Unless you fancy doing a bellhousing conversion and going for Rx8 gearbox, @260 you could choose 5 or 6 speed box. I posted a few pics and the bellhousing conversion plate in about half way down. Another option is Ford Type9 gearbox, as bellhousing available for the XE, but your on the limit power wise for a std. type9. And last, and arguably the strongest internals (for a common gearbox easy to find)is bellhousing welding of an XE bolt pattern, to a ZF box out of BMW 320Diesel + in order of strength IMO based on various sources that do sometimes conflict. BMW , RX8 5speed, R28, RX8 6speed, Getrag240, Type9. Quote Link to comment Share on other sites More sharing options...
Moonmonkey Posted December 20, 2021 Share Posted December 20, 2021 (edited) On 19/12/2021 at 19:27, Jessopia74 said: Another option is Ford Type9 gearbox, as bellhousing available for the XE, but your on the limit power wise for a std. type9. And last, and arguably the strongest internals (for a common gearbox easy to find)is bellhousing welding of an XE bolt pattern, to a ZF box out of BMW 320Diesel + in order of strength IMO based on various sources that do sometimes conflict. BMW , RX8 5speed, R28, RX8 6speed, Getrag240, Type9. Just wondering if anybody has ever tried a Tremec/Borg Warner T5 in a Manta. Standard Cosworth/TVR gearbox and officially rated at 300lb/ft torque (well the one in my 4.5 Cerbera just about copes with 350lb/ft, blown 5th gear once but you can get uprated Quaife gear sets). Looks like you can get new ones from Gearboxman for £1,733+vat These guys used to do a XE to T5 bell housing and cable clutch conversion: https://www.rwdmotorsport.com/product/vauxhall-2-0xe-engine-to-borg-warner-t5-bellhousing/ Edited December 20, 2021 by Moonmonkey 1 Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted December 20, 2021 Share Posted December 20, 2021 (edited) 49 minutes ago, Moonmonkey said: Just wondering if anybody has ever tried a Tremec/Borg Warner T5 in a Manta. Standard Cosworth/TVR gearbox and officially rated at 300lb/ft torque (well the one in my 4.5 Cerbera just about copes with 350lb/ft, blown 5th gear once but you can get uprated Quaife gear sets). Looks like you can get new ones from Gearboxman for £1,733+vat These guys used to do a XE to T5 bell housing and cable clutch conversion: https://www.rwdmotorsport.com/product/vauxhall-2-0xe-engine-to-borg-warner-t5-bellhousing/ If you was going turbo, it might make sense. T5 is a decent gearbox and has good parts/spares support. However, it's a bit overkill for a N/A XE build and adds a layer of fabrication (propshaft & mounting etc) that do yo really need to spend that much on for zero additional benefit? The Getrag240 can just about cope with a C20LET (208lbs/ft) if not overly abused constantly in 2nd gear. Thing is, XE lumps was a popular choice to drop into the MK2 Escorts etc, so there is a fair amount of support,and sone of those conversion parts sort of fit into the Manta with some persuasion. T5 gearbox on the forums brings up a couple of results https://mantaclub.org/search/?q="T5 gearbox"&quick=1&updated_after=any&sortby=relevancy&search_and_or=and Edited December 20, 2021 by Jessopia74 Adding search results. Quote Link to comment Share on other sites More sharing options...
Daiboy1 Posted December 21, 2021 Author Share Posted December 21, 2021 Hi I've just bought a rx8 box and prop for her, any ideas about gear lever position.Engine's running about 260 on 48s cheers Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted December 21, 2021 Share Posted December 21, 2021 (edited) 34 minutes ago, Daiboy1 said: Hi I've just bought a rx8 box and prop for her, any ideas about gear lever position.Engine's running about 260 on 48s cheers See my link a couple of posts above as I have the std getrag next to RX8 box to show how back the gear lever is. Edited December 21, 2021 by Jessopia74 Quote Link to comment Share on other sites More sharing options...
Daiboy1 Posted December 21, 2021 Author Share Posted December 21, 2021 Can't find that post Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted December 21, 2021 Share Posted December 21, 2021 4 minutes ago, Daiboy1 said: Can't find that post Quote Link to comment Share on other sites More sharing options...
Paul Barrett Posted December 22, 2021 Share Posted December 22, 2021 By far easiest is the r25-28. Bolt on fkat flywheel and easy clutch options. will take lots of power and gearing good. Quote Link to comment Share on other sites More sharing options...
Paul Barrett Posted December 22, 2021 Share Posted December 22, 2021 Dave Mac has the output flanges on the shelf for the prop too. As used by retro power Quote Link to comment Share on other sites More sharing options...
lewis p Posted December 22, 2021 Share Posted December 22, 2021 On 20/12/2021 at 22:59, Moonmonkey said: Just wondering if anybody has ever tried a Tremec/Borg Warner T5 in a Manta. Standard Cosworth/TVR gearbox and officially rated at 300lb/ft torque (well the one in my 4.5 Cerbera just about copes with 350lb/ft, blown 5th gear once but you can get uprated Quaife gear sets). Looks like you can get new ones from Gearboxman for £1,733+vat These guys used to do a XE to T5 bell housing and cable clutch conversion: https://www.rwdmotorsport.com/product/vauxhall-2-0xe-engine-to-borg-warner-t5-bellhousing/ I broke a manta rally car that had this gearbox in on the back of an xe...never drove the car tho. On 21/12/2021 at 14:25, Daiboy1 said: Hi I've just bought a rx8 box and prop for her, any ideas about gear lever position.Engine's running about 260 on 48s cheers What else have you done to get that much out of it? Quote Link to comment Share on other sites More sharing options...
Daiboy1 Posted December 22, 2021 Author Share Posted December 22, 2021 Piper cams, con rods, crank. Well the guy I bought it from said it was 260 Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted December 22, 2021 Share Posted December 22, 2021 1 hour ago, Daiboy1 said: Piper cams, con rods, crank. Well the guy I bought it from said it was 260 It's possible depending on cams and CR etc, but without knowing exact build specs it is all you can go on atm, so build for that. Quote Link to comment Share on other sites More sharing options...
Daiboy1 Posted December 27, 2021 Author Share Posted December 27, 2021 Can anyone help, putting a rx8 box in manta ,but gear lever about 6inches further back ,any suggestions or photos. Cheers Dai Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted December 27, 2021 Share Posted December 27, 2021 2 hours ago, Daiboy1 said: Can anyone help, putting a rx8 box in manta ,but gear lever about 6inches further back ,any suggestions or photos. Cheers Dai When I looked at using the RX8 box, the only solution would be to move the lever position in the shell, by welding an additional 5 speed gearbox gear-lever gator into the tunnel, hence why I never moved forward with the plan. There are a couple of guys that have chopped and welded the selector shaft, but it's a lot of hassle as it forms part of the top of the gearbox housing, so quite a lot of messing about. So to me, if going that route of chopping/welding then I decided that a bellhousing chop/weld to a bmw 320D box would make life easier. But as already mentioned by Paul simplest would be an R28 (or R30 gearbox fitment if you can find one); proper R28 do come up for sale and fitment is far far easier. Just be careful with R25-28 gearbox castings, they was used with both R25 (250Nm) internals and R28 (280Nm). It's the specific gearbox code that is stamped that is the identification of type. An R25 for the sake of argument here no stronger than a 1.8 Getrag box . I did have a table with the gearbox codes, but can't access my Google drive atm, so maybe someone else might help. 1 Quote Link to comment Share on other sites More sharing options...
Daiboy1 Posted December 27, 2021 Author Share Posted December 27, 2021 Thanks mate,I'll have to make my mind up which way to go. Cheers Dai Quote Link to comment Share on other sites More sharing options...
Paul Barrett Posted December 27, 2021 Share Posted December 27, 2021 You could go getrag 265 (monza,bmw,jag) with adpatoer and bellhousing. but that is only need for bug power as these boxes are pretty bullet proof. I have currently that setup going onto a high spec c20let as it’s the most compact setup you’ll find. Tremec TKO600 I’ve also dabbled with (for a v8 build) but a big heavy box , but very adaptable. Just to add you’ll need a spacer for the r25-28 concentric hydrualic bearing too. this is all tried and tested also. I have it in the manta A. you can try and track down a Carlton r25 too that has cable clutch but getting rare now. Quote Link to comment Share on other sites More sharing options...
611 Posted December 28, 2021 Share Posted December 28, 2021 GM6 Spare might have something as he usually has a fair bit of vauxhall stuff. https://www.ebay.co.uk/usr/derek_at_gm6_spares_co?_trksid=p2047675.l2559 Andy Quote Link to comment Share on other sites More sharing options...
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