Tim Reid Posted January 25, 2013 Share Posted January 25, 2013 Hi All, I think my MT75 is on the way out, last couple of times I drove it (October 2012) there was a graunch when changing from first to second quickly. So it look like I might have to pull it out and I wanted to think about my options. 1. Repair as is, local place quoted around £200 + parts for re-build. 2. Repair MT75 and improve the first gear as it's useless for pulling away becaus I need to change to second almost imediatly. What are the options here? 3. Replace the MT75 with a type 9. The type 9 seems to be very popular in Westfields, is it lighter? better ratios as standard or just better upgrade options? As for budget.... I am quickly turning the car into a more trackday toy then road use. The drivers ability does not warent a £4,000+ fancy box as the money would be better spent on tuition. My first preference is to fix as is but I always aproach these jobs from the point of view of why pay £600 now just to replace it with £1500 in a couple of years as this would have a total cost of £2100 and need to take the engine out twice! Would I be better spending the extra money now for the long term goal of having better ratio on the first gear? Many thanks for your thoughts. Tim Edit to add: Diff is 3.92 LSD Quote Link to comment Share on other sites More sharing options...
Norman Verona Posted January 25, 2013 Share Posted January 25, 2013 Get it to BGH and tell Brian exactly what you want and how you're going to use it and he'll sort it for you with the correct ratios. He's very reasonable with his charges. Quote Link to comment Share on other sites More sharing options...
chris7273 Posted January 25, 2013 Share Posted January 25, 2013 Different ratios exist for the mt75 but they are very expensive. A swedish company proposes different sets but the price is stratospheric. When my mt75 broke down, i posted an ad on the forum and i was lucky : i bought an mt75 in good working order from a member who upgraded for a type 9, for a very good price. I was also lucky to find the good version, with the starter motor on the right side Modifications for a type 9 were beyond my budget and own skills : chassis mod, modified prop shaft, find the good bell housing, hydraulic clutch... And i wanted the westie back on the roas asap. this is why i prefered to go for the mt75 again. Edit : found the company http://www.fixittransmission.com/eng/pages.asp?pageID=1&showpage=1 1 Quote Link to comment Share on other sites More sharing options...
peterg Posted January 25, 2013 Share Posted January 25, 2013 If it's mainly for trackday use and you want decent ratios at a reasonable price I'd stick a Type 9 in now and be done with it, the MT75 can be changed but very little choice in ratios and they're very expensive as stated above. Stick up a wanted ad and you might find a Type 9 that's already sorted for sale by someone who has upgraded to sequential (Elite, Quaife etc) Quote Link to comment Share on other sites More sharing options...
Tim Reid Posted January 26, 2013 Author Share Posted January 26, 2013 Good point Chris, chassis mod, prop shaft, bellhousing adds to the cost and hassle. How much better is it to have better ratios? Quote Link to comment Share on other sites More sharing options...
M444TTB Posted January 26, 2013 Share Posted January 26, 2013 Is the MT75 better at anything than the Type9? Quote Link to comment Share on other sites More sharing options...
chris7273 Posted January 26, 2013 Share Posted January 26, 2013 Is the MT75 better at anything than the Type9? I would say no and i wonder why westfield took this option... Quote Link to comment Share on other sites More sharing options...
Mark (smokey mow) Posted January 26, 2013 Share Posted January 26, 2013 I would say no and i wonder why westfield took this option... I thought it was actually the Mitchell Cotts MCT75 that they used in the factory built cars? I presume new units were more easily available to them than the Type9. Quote Link to comment Share on other sites More sharing options...
chris7273 Posted January 27, 2013 Share Posted January 27, 2013 Mitchell cotts for the duratec engined cars. But standard mt75 for the zetec. I think that the new version of the sport turbo is fitted with a mazda gearbox / diff... But i am not sure. Quote Link to comment Share on other sites More sharing options...
JeffC Posted January 27, 2013 Share Posted January 27, 2013 when i had my duratec westy I changed from Mc t75 to type 9 and ratios are no better so unless you plan on upgrading the box to something with better ratios there would be no advantage to swapping to standard type 9 as you need to get a new propshaft and alter gearbox mounts and gear lever position. imho both standard boxes are close to useless for a track westy as first is too short and 5th to high you almost have a 3 speed box at most tracks. for road use you can get away with them as 5th is a good cruiser Quote Link to comment Share on other sites More sharing options...
Mark (smokey mow) Posted January 27, 2013 Share Posted January 27, 2013 Mitchell cotts for the duratec engined cars. But standard mt75 for the zetec. I think that the new version of the sport turbo is fitted with a mazda gearbox / diff... But i am not sure. Ah ok thank you That's correct that the Sport Turbo does has a Mazda gearbox and Diff Quote Link to comment Share on other sites More sharing options...
Terryathome Posted January 28, 2013 Share Posted January 28, 2013 MT75 for sale in the for sale bit of WSCC. Terry Quote Link to comment Share on other sites More sharing options...
Tim Reid Posted January 28, 2013 Author Share Posted January 28, 2013 MT75 for sale in the for sale bit of WSCC. Terry this one? http://forum.wscc.co.uk/forum/index.php/topic/99421-mt75-gearbox-and-propshaft/http://forum.wscc.co.uk/forum/index.php/topic/99421-mt75-gearbox-and-propshaft/ I have already made contact with the seller to see if this will be an option for me. Still to make a final decision to stick with MT75 or upgrade while the engine is out. I am unsure the cost is worth it at my level of driving (2-3 trackdays a year) and the money might be better spent on tuition. Quote Link to comment Share on other sites More sharing options...
jeff oakley Posted January 28, 2013 Share Posted January 28, 2013 The MT75 is a good box but crap ratios. If you are going more tarck use, then stick with what you have and keep an eye out for a type 9 bgh box. They do come up but you will pay £750 upwards for a used one. Bellhousings can be bought and the prop can be altered easily. What get expensive is if you want it all now. 1 Quote Link to comment Share on other sites More sharing options...
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