Autosport Labs

Hi Gents, Just FYI, I ran in the cam exactly to the manufacturers spec......I used a Mineral oil (also coated cam / lifters with cam lube), and upon first start up, went to 2000-2500rpm for 20mins.......I probably did another 50 or so miles without letting the engine dip too low in the revs, and cha...

Further to the above post...here is another later map that uses less rpm Bins at the top end, so the resolution is slightly better low down....

Seems to work well on modified CVH engines...

Hi Chaps.... Just wanted to give you all another update..... I bought a rather nice cam and solid lifter set up from flea bay last week, so while the other cam has gone off for inspection I fitted said new cam (after flushing engine through twice!).... Anyway, upshot was, car now revs easily up to 7...

Engine bay looks a bit dirty





Seriously....that looks fantastic.....

aarc - to answer your question...yep, everyone who siad it was valve timing was spot on....I'm hitting myself, as the last thing I though it would be was a brand new cam at fault....The lifters were bought as part of the cam kit, so came from the same manufacturer......... Martin, as for oil, I've t...

Hi David, Totally agree, and I was 100% meticulous when running in the engine and cam....2000rpm for 20mins...it hurt to do it as it just doesn't seem natural...but I understand the theory, so thats what I did...also made sure the cam was very well lubed with the manufactures cam lube....all done by...

Hyperformance...you are spot on....sort of... :-) This weekend, I thought I'd start stripping the engine....so I first whipped the cam out....Guess what....It was totally worn!!!!. some of the lobes were 5mm shorter than they should have been, which, when amplified buy the rocker ratio, meant some v...

I 100% take your point re the sensor bracket....the previous bracket I thought would be fine but at a certain rev vibrated.... The new one that you see in the photos however, is fine...I cannot physically move it with my hand it's that solid...... However, it's now not relavent as on the weekend I s...

To answer the questions: Th faults Rich round have not been corrected....but not through want of trying :-) - I bought a new idle mixture adjustment screw, only to find that someone has bodged the idle hole in the weber.....By chance, it does seem to allow the correct amount of fuel and air in, so a...

Alas, have looked into this one......And measured the movement at the trumpet end....all looks well. I'm using the cosworth rubbers and Misab washers, am getting approx 10mm movement at the end....

Thanks.

Paul.

Thanks for the comments Gents.... OK, to answer the questions.... First off valve springs.....This was my very first suspicion, and consequently, spent a tidy sum of money changing to a very nice set of double springs....Alas made no difference. I tried much longer trumpets (in the shape of some pla...

Just wanted to run something past you...... A friend of a friend m(who is an engine builder) has looked at the vid and immediately siad it looks like the ignition is firing at the wrong time (note 'Wrong time', not 'not firing').....Just wondering if you know what would ever cause MJ to do this?...A...

Hi Brent, I have checked the gap on the Trigger wheel / Vr sensor, and it seems pretty consistant........I now have the VR as close as I dare :-).... I sold my origional distributor / ht leads / coil on flea bay...which I'm now regretting...but plugging RichB's in was a big help as my next step was ...

A fellow MJ user RichB (also on this forum), took a look at the car this weekend.....I'll cut and paste his comments, as it's useful, and may also trigger some thoughts :-) - needless to say, MJ looks like it might be OK... Firstly, a test-drive to get a good feeling for the overall problem. Apart f...

I'm in Southampton so it's a fair old drive for me.........I've heard good things about NMS, and if I don't sort this soon they will be getting a call

Cheers.

Paul.