If you would like to join the DLOC, please visit the Club's website https://www.dloc.org.uk/
Please don't post someone's email address. Some people don't want to risk it being harvested by spambots and GDPR regulations discourage it.
Always look at "ACTIVE TOPICS" which gives all posts in date & time order if you can't find a post as topics are sometimes moved; or look at "Your Posts".
Reg. nrs. Please add reg. nr. when posting a photo or anything about a car as this will help searches. Don't add punctuation next to nr. as this negates search.

Max overbore Daimler V8

Sonus
Posts: 194
Joined: Wed Apr 13, 2016 2:19 pm

Re: Max overbore Daimler V8

Post by Sonus »

That is ideal as Ford Focus' are much easier to find here in Norway. Probably lots easier to buy cheap on ebay as well.

Regarding my initial question regarding max overbore; After feedback in this thread and a lenghty and very informative phone call to Russ Carpenter I have decided to go +150/thou overbore. New pistons are being designed for 11:1 compression ratio.

David S
Posts: 188
Joined: Sun Feb 21, 2016 9:23 am
Location: Forest of Dean

Re: Max overbore Daimler V8

Post by David S »

By my reckoning that'll make it 2574cc.........
But won't the raising the compression ratio from 8.2:1 make it need higher octane petrol than currently available?
You don't want it pinking!

David

User avatar
Vortex O'Plinth
Posts: 882
Joined: Fri Feb 12, 2016 8:15 pm
Location: Gloucestershire

Re: Max overbore Daimler V8

Post by Vortex O'Plinth »

David S wrote:
Fri Jan 26, 2018 10:07 pm
By my reckoning that'll make it 2574cc.........
I make it 2809cc ?
Nick

"Don't bother with the Air & Space Museum - there's nothing to see.......".

daimlersteve
Posts: 370
Joined: Wed Mar 09, 2016 11:20 am

Re: Max overbore Daimler V8

Post by daimlersteve »

Could be a different pie in the mix.

User avatar
Vortex O'Plinth
Posts: 882
Joined: Fri Feb 12, 2016 8:15 pm
Location: Gloucestershire

Re: Max overbore Daimler V8

Post by Vortex O'Plinth »

daimlersteve wrote:
Sat Jan 27, 2018 4:08 am
Could be a different pie in the mix.
Capture.JPG
:lol: :lol:
Nick

"Don't bother with the Air & Space Museum - there's nothing to see.......".

daimlersteve
Posts: 370
Joined: Wed Mar 09, 2016 11:20 am

Re: Max overbore Daimler V8

Post by daimlersteve »

Nah, only one of them. 2 pi r for circ. , pi r sq for area.
Apart from that , whats the goss in the old country ?

Sonus
Posts: 194
Joined: Wed Apr 13, 2016 2:19 pm

Re: Max overbore Daimler V8

Post by Sonus »

David S wrote:
Fri Jan 26, 2018 10:07 pm
By my reckoning that'll make it 2574cc.........
But won't the raising the compression ratio from 8.2:1 make it need higher octane petrol than currently available?
You don't want it pinking!

David
That is 11:1 static, but probably a lot less dynamic compression due o the cam profile we are using :)

((150/1000)+3) = 3.15" in diameter or 80.01mm which should make it a tad more than 2800cc :D

Will probably ditch the eight throttle bodies and do a plenum intake with dual throttle bodies as the pulse tuning in the plenum looks like it will get us an even higher torque figure :)

daimlersteve
Posts: 370
Joined: Wed Mar 09, 2016 11:20 am

Re: Max overbore Daimler V8

Post by daimlersteve »

sonus,
yep thats the way to go, you can get it down to the second or third harmonic with a cross ram twin plenum setup.
I've made that manifold and plenums and will get around to setting it up when the new 2.8 finally gets here.
steve.
PS, Buy Pipemax and do the calcs. Cheap as.

David S
Posts: 188
Joined: Sun Feb 21, 2016 9:23 am
Location: Forest of Dean

Re: Max overbore Daimler V8

Post by David S »

Well Thanks!

I never was the sharpest tool in the box, I had used 3.015" for the diameter, Ooops!

And I always the engineer's Pi x D squared over 4 for area, then x h for volume so I don't get the Shreddies pie bit!

Anyway, it's worse now...... I am struggling with French language curtesy of Misuser Vortex O’Plinth; Nick signs off: "Pas d'elle yeux Rhône que nous" - and my Google transtale tool says that means: "Not her eyes Rhone that we".

Ummmm??

Dumfounded Dave.

Phillmore
Posts: 847
Joined: Sat Feb 13, 2016 1:25 pm
Location: Worcestershire Herefordshire border

Re: Max overbore Daimler V8

Post by Phillmore »

Re the French you seem to be without a paddle Dave ;) ;)
Andy

1954 Conquest Mk1, 1956 Conquest Mk2, 1957 Conquest Century Mk2, 1955 Austin A90 Westminster

Post Reply