14 replies to this topic

[Will16]

Evening TMF,

Searching through racing mini photos, I've come across a few Mini's with boxes on the bonnet or holes cut in the bonnet/slam panel for carbs. I assume these arn't A series engine. Anyone she'd some light on these?



I hope you don't mind me using your photo cradley-heathen

Edited by Will16, 25 March 2014 - 07:25 AM.

[rally515]

Yes they are A-series based, the block and gearboxes are anyway!.

 

The carbs are most likely Webers and the heads could be either the 8-port varient like you see here: http://www.minispare...heads.aspx|Back to shop

 

Or something along the lines of a K1100 BMW motor bike head conversion that some companies offer in kit form.

[Andi-p]

Alden 7 port or 8 port head on a series block

Edited by Andi-p, 19 March 2014 - 08:54 PM.

[alex-95]

1st and 3rd pic's look like a-series to me...

LIke this...

[sirjakethebrit]

I'd say the second photo is a bonnet for a kad16v motor

[cradley-heathen]

its ok i dont mind teh picture being used, its not like its a masterpiece or anything lol!

 

i think the car i took a picture of had a 16v head, i have got it in my head it was the KAD version, actually or was it the JKD one, i cant recall, one thing for sure, it wasnt a k1100 as that hadnt been thought of then!

[MrBounce]

I think the estate in the 2nd pic has the KAD twin cam engine. Certainly has their bonnet with the "hump" near the rad.

[phil hill]

I'm pretty sure the middle/second picture is of my friends car, and although it has a KAD bonnet it's an 8-port underneath it.

 

Sadly the car is "retired" awaiting restoration but the engine is now in a MK1 Mini with a more subtle bonnet.  You'd hardly know unless you look closely !!

 

Phil.

[timmy850]

Have the photos disappeared?

I'm pretty sure one of them was this one (it's for sale now):

• 1380 motor, brand new bottom end $4500.00 has done 1500 km
• Ken elder (Aussie made)  alloy cross flow head running twin 40mm webers
• Full coil over adjustable spax suspension, full adjustable control arms.
• Stainless exhaust,7×13 mini lites tyres as new, as new cooper brakes all round, all steel custom bonnet, custom into, car has been fully deseamed (properly),rotisserie built, and is also fully engineered

 

 

 

 

 

[timmy850]

And a feature on it too:

http://www.performan...tom-carb’d-mini

[Will16]

Thanks for that Tim! Very useful!

Thanks everyone else for you input too. Another question now-

Why do they mount the carbs at the front of the engine? As oppose to standard when the carbs are by the bulkhead.

[timmy850]

It makes the head a "crossflow" design, where the fuel and air go in one direction and don't have to turn around like in the usual a-series head.

[mab01uk]

Thanks for that Tim! Very useful!

Thanks everyone else for you input too. Another question now-

Why do they mount the carbs at the front of the engine? As oppose to standard when the carbs are by the bulkhead.

 

Because 8-Port heads are usually crossflow with the four exhaust ports on one side and the four inlet ports (carbs/injection) on the other side.

 

The A-Series head has a 'siamesed' design where 5 ports (3 exhaust / 2 inlet) are shared on one side of the head for the four cylinders which is less efficient and restricts ultimate power.

Edited by mab01uk, 25 March 2014 - 07:44 AM.

[surfblue63]

KAD 16v with injection

 

 

 

8-Port head with twin webers

 

[Orange-Phantom]

AKM 7 Port with twin DCOE 38's (and it all fits under a standard bonnet)!

http://i173.photobuc...zpse0272c65.jpg

Edited by Orange-Phantom, 25 March 2014 - 08:30 PM.