I did just that with my 1412 stroker's head.
A stock 12G940 or 1316 head flows about 90CFM, mine did 116CFM.
Of course Graham gets lots more than this from his race heads but he said for a roady it'll be fine. This motor got 113.6HP at 6000rpm, and 113lb/ft torque when dynoed, with a single HS6 carby.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Yes I am very skeptical of UK dyno power figures, esp rolling road dyno day articles in some UK Mini magazines...

I suggest we all end this arguement and get matt to send one Twinky head to GR, we bolt it on and dyno it, end of story.

All I have to say about this topic is that I have seen a FULLY developed formula ford cosworth BDA engine on Graham's dyno struggling at around 160bhp@9,000rpm...

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Lillee - 1969 Morris Mini K

I thought he coaxed 265 out of it...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

yep ive got the books ive had a light read. obviously ill read more indepth. just wondered if anyone on here had any new techniques or information as vizards books are an odd 20 -30 years old.

and ill give graham a call when i think im finished.

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1975 Leyland Mini: 1060cc - resto/ ex-hsc project.

265 sounds better but it the good ones rev to 11,000 (or they did when I was pit crewing on one)

Formula Ford do not use BDA engines, never have but about 160 from a Kent engine on a single carb is about the money for any of the old engines

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Roundies and Clubbies(except vans) are both ugly that is why I have Midas and a van
1293 Mini Midas Bronze,1275 Clubman van

I would guess that it was Formula Pacific/Atlantic/Mondial/etc. In other words Formula Ford Twin Cam.*












* You can't count that silly Toyota that Willo used, it never achieved anything.

I retract that comment I MEANT TO SAY 260hp, my memory is so bad these days

Well it needs testing. I have always thought that Matt's heads were actually viable (I asked about them on many occasions). But lets not quote figures unless they are apples with apples

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Lillee - 1969 Morris Mini K

no Mike that would make it a Ford Twincam as used in BDA escorts and the later MK2 escorts used BDG twincams as did pacifics and the like

As for those toyota engines,well they now crack over 300 in the works rally S2000 cars and still have a link to minis as thwey are built by Goeff Forshaw at Bates motorsport and geoff started his racing career in the old supermini days

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Roundies and Clubbies(except vans) are both ugly that is why I have Midas and a van
1293 Mini Midas Bronze,1275 Clubman van

BDA, BDM, BDSM (lol) BMW - I see lots of acronyms BUT STILL NOT AN ENGINE DYNO.

Simple, would the big motor companies put up engine dyno figures in all their results or rolling roads???

Finito - done, end of story.

Chong, the offer is there, Matt is busy so cant take it up... but the offer is definately there.

Matt - where you gone? Can you put an end to all this nonsense once and for all?

Pete

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Click here for the Turbo Conversion Thread!

I want to hear more about porting A series heads, not about BMW head conversions...

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did I tell you that I won a trophy?

hear hear

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1975 Leyland Mini: 1060cc - resto/ ex-hsc project.

Not to get into the big discussion *cough argument*, but I think that big motor comanies quote engine horsepower for 2 reasons. Mainly because the engine is developed outside of the car and 2 because it'll be a bigger number .

That would be why the UK people insist in quoting crank figures from rolling road shootouts - to sound bigger. But they shouldn't, just HP atws.

What I wonder is if GR had a rolling road would everyone want to see results on his rolling road and discredit others' dynos? Now I am not questioning GR's dyno. Ive never met GR and I don't actually know anything about him, his dyno or his qualifications. I'm just trying to put some level on this as the discussion is very one sided.

Oh this is about heads? Yeah I like twin cam heads with turbos, but usually on twin cam motors as in motors that had them originally. On an A-series a supercharger and a 5 port will do me fine.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T

People with race motors use GR's engine dyno for several reasons-
1. It gives repeatable results.
2. He knows what he is doing.
3. It's convenient, the motor is out of the car, usually just rebuilt.

There's no way he would run a rolling road, they are all just too inaccurate for his purposes.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Fair enough, I wasn't actually expecting an answer.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T