Feedback

Denmark June 19 2008
Hi Peter

Hope you are doing well! Here is some feedback based on the first 1200 kilometres with the MGB engine you build for me at the turn of the year 2007/08.

Having owned my 1974 MGB GT for 1 year I started to look for a powerful replacement engine. After reading your books on powertuning MGB's and cylinder heads I decided to give you a call - not least because you describe yourself as running a friendly tuning firm. And that is indeed what you do! After some talking we agreed up on a fairly fast road engine, which still should be driveable in town-traffic:
1867 cc linered block, 10.25:1 CR with HR285 Piper billet cam.
Fast Road Big Valve Plus head with 45mm inlet valve, larger ports with tubed pushrod tubes on the inlet ports. Heavy duty double valve springs.
Heavy Duty/Competition clutch.
Lightened flywheel.
Modified oil pump.
123 dizzy
2 * 1-3/4 SU carbs with KN pan cake filters and stub stacks
Maniflow LCB Large Bore Hi-Flow single box exhaust system

Helped by Peter Mogensen (a Danish MG part supplier) and Poul Heichendorff (a true Danish tuning legend who has actually worked at Abingdon and who had only positive feedback on the engine) - the engine was installed, run in and adjusted, ready to use for summer 2008.

My first driving impressions are:
Sound It has a tremendous sound from idle and all the way up, and is definitely not discrete…Full throttle between 2500 and 3500 produces a nice and deep thunder.
Power Has not been an a rolling road yet, but it feels very strong and pulls heavily from 2500 and revs easily to +6500
Torque There is no lack of torque compared to the standard engine
Flexibility It seems very flexible and takes revs immediately! It is absolutely tractable.
Vibrations There is a total absence of vibrations. The engine is very well balanced
Consumption It looks as if it runs close to 10 kilometers per litre (99 octane lead free plus Bardahl octane booster) - but time will show

Until now I am absolutely satisfied with the engine and I will come back with more feedback as I gain more experience with the engine

Best regards

Klaus Ahm

Peter,

I meant to send you this email months ago!!

Last year, you agreed to have a look at my MGB GT as I couldn’t get it to run properly.

It turned out to be a combination of a stuck jet on the rear carb & a blocked fuel feed to the front carb.

The MG has been fine ever since.. just waiting for the weather to get better now J

At the time, I think I said that I’d write this up on my webpage, so here it is….
http://www.tapsell-towers.co.uk/html/mg.html

Feel free, to either link to this or copy any of the text for your website.

Again.. belated thanks from a very happy MG owner.

Regards,

Chris Tapsell

Feedback
Page

Hi Peter,

How are you? As requested on your website, here's a bit of feedback on the Econotune cylinder head fitted to our 1973 MGB GT back in May 2006. Since the head was fitted, we've covered just over 6,000 miles in the car, including trips to Norway (where we met and became friends with Peter Docton) and Ireland. The engine was great for climbing mountains in Norway (and this was just a few weeks after it was fitted) ~ I was having to change up and down the gearbox between 2nd and 3rd between hairpin bends even when the gradient was 1 in 5 as the engine was pulling so well. Fuel consumption has improved from 27mpg on the original (standard) head to 33mpg since the head was changed. So all in all, I'm exceeding pleased with the cylinder head as the car is now more responsive and drinks less petrol!

Thanks ever so much for a great product and next time we're coming past we'll pop in and say hello.

Regards,

Nigel & Jo

Nigel and Jo May
Burnham on Sea
Somerset