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EXT-RGB1 into BEC build. Anyone have experience or something similar ?
bennjamin - 10/6/16 at 01:48 AM

Hey team

I am building a BEC , using a small classic car chassis and body and are currently researching a reverse option.

So far , I have found many options but the latest bit of kit is a EXT-RGB1 from
http://www.extremeengines.com/cgi-bin/trolleyed_public.cgi?action=showprod_EXTRGB1

Seems strong , well built and well priced ( about £830 landed to me here in Oz)

Just wondering if anyone has any experience with this "rotation flip" style geared
down box ?

Or - any other alternatives apart from quaife or other super exxy bits ?

Thanks again Ben

motorcycle_mayhem - 10/6/16 at 10:30 AM

I have NO experience of the Extreme Engines unit.

I do have experience of the Quaife and Westfield units, neither of which will survive a Hayabusa/GSXR1000 Westfield on slicks. Of the two, the Quaife survived the longest, but required a breather/header tank to keep the oil in it. The Westfield one, well I had two, failed after a few hundred yards. If it's a road car you're preparing, then the situation is quite different, but again, I found the Quaife more reliable, but either were good.

I would urge you to go electric, I really would.

ArthurR - 10/6/16 at 11:58 AM

or use the Elite MX200 diff with inbuilt reverse


SJ - 10/6/16 at 05:31 PM

quote:

or use the Elite MX200 diff with inbuilt reverse


Aren't they about £3k?

ArthurR - 10/6/16 at 05:39 PM

Maybe, but you only have to buy one!

ozePhoenix - 11/6/16 at 07:50 AM

Looks like the Nova Racing Reverse Box
http://www.novaracing.co.uk/ReverseGearbox.html

I'm using one in my Hayabusa-engined Sylva Phoenix. No problems so far although only done about 3000k including several sprints.
Only addition I've made is a breather-tube with a non-return valve running to the back of the car from the M6 plug at top of the 'box.

I'm also down-under in Oz.

bennjamin - 13/6/16 at 09:51 AM

Thanks for the replies

The nova looks to be a different coloured version of the extreme - same price so in comparisons sake I would go for the more reputable nova.

Also have found this from elite racing transmissions.

Anyone tried ? Considerably cheaper (500 pounds) too.