40 replies to this topic

[Jarvey]

Just wondering if anyone has fitted the Specialist Components 7 Port Head to an MPI block?

If so how did you retain the alternator mounting? There is a sensor in the area where the bracket mounts on a standard head.

Cheers.

[Northernpower]

I'd email John at SC and ask him what the workaround is.

[Jarvey]

I phoned him yesterday and he said it has been done a couple of times and people have fabricated their own brackets.

 

I also asked if there is enough meat around the bottom of the head to machine and tap the holes and apparently "there should be" lol but I don't fancy scraping a 7 port head though haha.

 

I just wondered if anyone on here has done it and wouldn't mind sharing

[Midas Mk1]

Tap the block for an earlier type alternator, but you'll need to fit a different rad (been there, tried that)

Only other way is a heavy duty fabricated alternator mount putting it in the MPi position.

[Jarvey]

Hi Midas,

 

So you cant use a front mounted rad with a 7 port? Did I read that right? Nah, that's not right ... stupid me

 

No wait ... if you are using the early type location for the alternator you have to move the rad too, yeah I think that's probably closer to what you said lol I get you now

 

Thanks chap.

 

[Northernpower]

Hi Midas,
 
So you cant use a front mounted rad with a 7 port? Did I read that right? Nah, that's not right ... stupid me
 
No wait ... if you are using the early type location for the alternator you have to move the rad too, yeah I think that's probably closer to what you said lol I get you now
 
Thanks chap.

 

It depends on what type of throttle bodies you're using. You won't fit a front radiator with the SC throttle bodies and ram pipes and filters.

[Sprocket]

Things to consider.

 

How can you mount the alternator in the same position as the MPi when the 7 port inlet and throttle bodies are also on the front of the head?

 

If you mount the alternator lower down in the original position prior to MPi, you need to resolve the radiator clearance issue.

 

You could run a small Denso alternator, but it with either be expensive for a 100amp one, or very cheap for a 45amp one that might not be enough for the car depending on 'originality'. may still struggle with clearance on the front mount rad.

 

You could always run a side mount rad.

 

you might need to change the water pump depending on your alternator bracketry.

 

You can drill and tap the 'blank' bosses on the front of the block to fix a custom made bracket in almost the same location as an A+ block.

 

 

 

To be honest, the MPi bracketry is cumbersome, and the side mount rad is not as bad as many make out.

[Midas Mk1]

Even with the small race alternators, you can for the MPi rad, but there is no room front or rear for a fan. I've spent the past month each night head scratching trying to squeeze the MPi rad, and then a cinq rad in there, the major problem being the fan. Ended up going for a thermex side mount and 6 blade export fan.

MPi engine is mounted further forward due to the frame, which makes it even worse.

[mini13]

chap I know has a K head on an MPI block and had the same issue, managed to get the MPI rad in my mounting it at an angle but ut wasnt nice, he was looking at moving the alternator to the back above the exhaust where SC mount their supercharger.

[Jarvey]

Thanks for all the wisdom guys.

It's not looking too promising is it?

Might just stick with the upgraded throttle body kit for now then and just get a standard head ported.

[Northernpower]

Thanks for all the wisdom guys.

It's not looking too promising is it?

Might just stick with the upgraded throttle body kit for now then and just get a standard head ported.

Change to a side mounted radiator and go with the 7 port.

[Jarvey]

Hahaha I regret asking now... I'm going to get peer pressured in to it by highly bias Mini owners haha.

[Northernpower]

Hahaha I regret asking now... I'm going to get peer pressured in to it by highly bias Mini owners haha.

Mine has no problem keeping cool and I've got 108bhp and 83lbs of torque at the wheels. Now you've suggested it you can't go back!

[Jarvey]

Are you running an MPI block as well Northerpower?

108bhp at the wheels is not to be sniffed at! Is that the SC 7 Port Head?

I'm weak enough as it is! I don't need much bullying from you lot to cave in!

[Northernpower]

Are you running an MPI block as well Northerpower?

108bhp at the wheels is not to be sniffed at! Is that the SC 7 Port Head?

I'm weak enough as it is! I don't need much bullying from you lot to cave in!

No it's an A+ block but the block shouldn't make any difference. I've got the full SC head, throttle bodies, ram pipes and engine management. I've got Calver 72.5mm pistons giving 1342cc and a Calver cam. The torque (from 2750 revs through to 7250 revs) more the the bhp gives great drivabilty