most powerful 4.2 ?

[spitfire4v8]

I've just mapped the most powerful 4.2 ajp i've yet seen, but i'll leave clivef to spill the beans on the griffith forum that's after he's got his lardy arse out of that hotel bed and got himself down here for the rest of the work come on you lazy oik!!

[touching cloth]

Genuine 4.2 or a later 4.5 block dressed up from the factory. Interested in the results either way

[spitfire4v8]

genuine 4.2 rebuilt by clive himself as detailed in his engine build thread on the griffith forum

[touching cloth]

hmnnn, very interesting then... does it start with a 4?

[clive f]

definately a 4.2, small journal crank etc, heres the graph, joo may improve on it once he`s finished with the mapping, but very happy with the results so far



joo imfrms me that at 4185cc its putting out 97.77bhp per litre.

Edited by clive f on Tuesday 13th October 11:09

[itsallyellow]

I find it very intresting that all the high power AJP's seem to peak at less than 7000rpm. I allways thought the AJP was a high reving engine...

[JensenA]

Great result!!

Edited - Previous comments didn't sound as they were meant to

Edited by JensenA on Tuesday 13th October 12:04

[touching cloth]

Great figure, well done

[dirty boy]

What's been done to achieve that? Either way, superb effort.

[southendpier]

Blimey - can I have one for Christmas please?

[M3John]

Good effort !

[spitfire4v8]

http://www.youtube.com/watch?v=kcuWMEz2ud0

[swansea v6]

Stunning noise!!!!

spitfire4v8 said:

http://www.youtube.com/watch?v=kcuWMEz2ud0

[plumAJP]

well done clive,

i bet you're a happy man. did you manage to sort the noise from the rear? what was it?

[knight]

Great result Clive are you happy with the noise now? also happened to spot a wonderful looking silver Cerb on the ramp in that vid

[central]

[Jester7]

Well done Clive, you beat me I take it you now know why you run them in 3rd gear

[RichV6]

Awesome result.

Have followed the Griff thread with interest and have also talked with Joo
about the ins and outs of chasing numbers with the 4.2.

Clive are you willing to give us the spec on your engine? Also I presume theres
massive gains being made with the exhaust manifolding. Can anything be done
in the limited space in the Cerb engine bay? Has anyone dyno tested the new
version of the ACT manifold?

A lot of questions I know but winters coming time for planning the next step.

[al 350i]

great job how come you didn't use a 4.5 as a base? was it just what was available at the time or is the 4.2 better suited to the griff?

[clive f]

plumAJP said:

well done clive,

i bet you're a happy man. did you manage to sort the noise from the rear? what was it?

hi shayne, yes rear wheel bearing shot to bits!!

I`ll answer peoples questions when I get home, I`m in a hotel on a wireless connection and it keeps going down so my last lengthy reply has just dissapeared

anyway, yes I love it, powerful, plus pops bangs and flames, will sort out a vid when I get home tommorow, and a big thanks to Joo for transforming the car, top man