Electric Supercharger?

Post by **bmcecosse** » Sun Nov 09, 2008 7:34 pm

You can also download the official workshop manual here - http://www.morris-1000.co.uk/ plenty reading in that too!

linearaudio · Post by **linearaudio** » Wed Nov 12, 2008 8:44 pm

MortisMinor wrote:Thanks BMC, i wouldent have thought such a book existed :s will definatly be purchasing

Thats like a Christian saying he didn't know the Bible existed!!
Long dark evenings just the time for reading it. Just remember its written 20 years back so some of the comments regarding what to use are maybe a bit skewed now. Eg the 12G940 head which is the big power maker is easily available now, whereas it was much less so then, so the emphasis on the mods to the "small bore" engines is different. Nowadays you'd be daft to do all the painstaking porting work he stipulates on a standard 1098 head when you can "easily" dump a 940 head on!
Regarding the original thread, 30 years ago the craze was to put a heater fan motor at the inlet to the airfilter on your mk1 Cortina. Guaranteed 20bhp boost(ho ho)

Post by **bmcecosse** » Wed Nov 12, 2008 8:50 pm

Although the 940 head still benefits from the improvements the Wizard relates. But I totally agree - unless competing in a class where the original head casting must be used, there is no merit whatsoever in modifying a standard head - or paying loads of dosh for a 12g295. Just pick up a 12g940 (or two) and go from there!

linearaudio · Post by **linearaudio** » Wed Nov 12, 2008 9:07 pm

And an MG Metro cam if you want to go a bit hotter... and ally inlet manifold from same source- both items of "exotica" when the book was writ, but easily got now!

Ratbag · Post by **Ratbag** » Tue Nov 18, 2008 3:04 pm

callyspoy wrote:Weber/Dellorto would be better than twin SU's. you have the same problems in terms of tuning them up, but the SU doesn't give you the punch that a Weber/Dellorto does.

...due no doubt to the accelerator pump chucking a dose of fuel in when you hit the throttel. You have to wait for an SU

Post by **bmcecosse** » Tue Nov 18, 2008 8:25 pm

But not if you modify the SU - by 'Quck lifting' the dashpot assembly and using a light spring and thin (3 in 1) oil! Not necessarily the best way for economy - but then neither is the Weber/Dllorto.

Post by **Kevin** » Wed Nov 19, 2008 10:41 am

All you SU lovers, i understand the joy of simplicity with them, please don't think i dislike them, and it is smoother, but that extra push is great!

Each to their own but what does it do for fuel consumption.
Mortis why do you need twin SU`s especially as you have a standard engine (if I remember correctly) they are more complex to keep in tune and offer little if anything over a good single until higher rev's are reached.
If I remember Cams car which has high performance A series engine it it uses a single HIF44 with around 0-60 of 7.5 seconds you will of course need a larger exhaust ect to get the true benifits.

Post by **callyspoy** » Wed Nov 19, 2008 12:49 pm

i totally agree Kevin, i took the dellorto off the other week as it was playing up, put an SU on and it was sooo nice to not have to battle the carb. Once i can justify paying for a tune up then the dellorto will be super though. fuel economy is a bit if an issue, but on a run i can still get to 35mpg as i don't drive fast. I do accelerate a bit though...at which point yes the fuel economy is a wee bit lame!