So looking at doing some serious go go on my round nose.
I have a 1275 bored to 1330 with a 40mm webber goes great but i would love some more power.
So im either looking at sc12 charger kit or the 7 port alloy head with twin 40mm webber
what do you guys think?? im thinking cost factor they will both be similar price,
What sort of power should i be expecting from each, does anyone know??


http://cgi.ebay.com/ebaymotors/Crossflo ... ccessories

Cost will depend on your current engine - what is your current compression ratio, or are you planning on a rebuild and new pistons anyway?
Also is it for mostly street or track?

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Too many cars, and too little time.

Will be mainly street .. My engine has been rebuild not long ago so don't plan on doing that again.

I had a thought about putting a SC on my car but I mean in reality it would be a $10k project by the end of it. Rebuilding motor/box/diff to handle extra torque and then buying the SC kit and a SC12... So expensive....

$10k would build one hell of a SBC.

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http://www.youtube.com/user/Hanras

i vote for sc-12, because i have one and bang for buck it cant be beat.

I went for an alloy 7 port head, as I already had a high compression stroker bottom end & changing pistons to reduce the CR was out of my budget.

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Too many cars, and too little time.

why not a Supercharged EFI 7 port?

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Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

What is the price of the SC12 kit nowdays? Is there more then one type available? Are the kits still available new?

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http://www.youtube.com/user/Hanras

just so you know, you can run low boost with standard compression

also, a decompression plate is pretty cheap, under $100 i think.

havent had any issues with mine, and its been running max boost etc.

also means you can return the engine to n/a if you wish.

its not the best way, but if you're on a budget or your engine is already built...

think they go for around $1200 with the charger, and a carb if you're lucky.

i was lucky and had a hs6 off a wreck, and sourced a sc-12 cheaply.

i'd estimate 80-90hp at the wheels based upon what i have seen other 1275's do.

we were lucky and had 3 sc-12 supercharged bigblock's on the same dyno same day.

think i might go for the alloy 7 port head guys..
Next question is how much more power will i gain with this engine from an already mild set up i have as a 1330. i have a very mild cam and some very mild head work already.

You won't gain much with just a "mild" cam. Change the cam too

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Lillee - 1969 Morris Mini K

FYI:


http://www.ausmini.com/forums/viewtopic ... &start=150

"Ok , so had the 7 port on the rolling road dyno today.

5 port head A+ 1360, 266 cam , 1.5 rrr, LCB , 45mm weber, standard 5 port head made 60hp atw @ 5750rpm, 3rd gear 110 kph.

Ported 7 port Pierce head Same dyno, same set up with twin 40mm dellortos. 10.5 cr. 3.1 diff.

90.4 hp atw @ 5870, 3rd gear ,118kph.

Still a bug to iron out around 3000 - 3500 rpm.

Needs : new exhaust - perry lcb has seen better days and is cracked! I noticed this the night before the dyno session , so disconected battery + and - , welded up the cracks and sorted the lower bracket and fried the alternator in the process. My advice - unplug your alt when welding!
Megajolt lite or a different dizzy - the A+ ducellier was not made for this application.

Pretty happy so far with a bit more to come , need to sort out the miss in middle revs to make it more driveable , probably a combination of advance curve/jetting.
Anyone else got thiers going?"

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Now with 2 extra ports!