15 replies to this topic

[pickup1990]

hi,

im just restoreing a 1380 i got given....at the moment its got a piper hr270 cam.

it will be running a HIF44 single carb.

the head is ported.

im looking to find out the best camshaft to get....

as reading up on the hr270 it isn't the best one out there and is a old model..

please help....

thanks

[Andywade]

Mine has a kent 286 its pretty nice but a 276 would be fine as well.

is a 1380 with a Stage 3 head built by minispeed. single hif 44 carb

Peak torgue is at 2600rpm, 70 lb'ft max power is a 5700 rmp at 76bhp at the wheels

its lumpy at idle but once you reach the power band its really nice - about 1.5k its fine - my carb does need tuning though as, at full throttle below 2k rpm it grumbles and splutters.

[SolarB]

What sort of driving will you be doing?

[pickup1990]

Mine has a kent 286 its pretty nice but a 276 would be fine as well.

is a 1380 with a Stage 3 head built by minispeed. single hif 44 carb

Peak torgue is at 2600rpm, 70 lb'ft max power is a 5700 rmp at 76bhp at the wheels

its lumpy at idle but once you reach the power band its really nice - about 1.5k its fine - my carb does need tuning though as, at full throttle below 2k rpm it grumbles and splutters.

thanks.

[pickup1990]

What sort of driving will you be doing?

about two times a week...maybe less...

maybe even a few track days..

would like the best cam for the best acceleration mostly..

thanks

[Sam Walters]

MD310 or BP320.

[dannyg2325]

i have a 1380 with swift tune sw10, and twin 1 1/2" carbs, low rev tourqe is amazing.
very snappy pedal, good responce. 2500rpm all hell breaks loose!! ha ha

[Matrix]

A series or A+?

[pickup1990]

A series or A+?

its a A series.

[Matrix]

I would go for something along the lines of a Kent 286 just my opinion of course but have use this combo in the past and it works well

[AndyMiniMad.]

Ive got the Calver ST RE13 OT..in my 1380 and its great. Very good torque from low revs and as above....All hell breaks loose from 2500revs, keeps pulling all the way to 7000.

[Sam Walters]

So its only me who thinks that even the 296sp is a kitten? I would hardly say all hell breaks loose. Even with over 100bhp at the wheels i would still consider this tame.

What are you actually going to be using the car for?

[AndyMiniMad.]

So its only me who thinks that even the 296sp is a kitten? I would hardly say all hell breaks loose. Even with over 100bhp at the wheels i would still consider this tame.

What are you actually going to be using the car for?

Wow!! 100bhp at the wheels is tame??? In a mini I would consider that kind of power as exceptional for a NA engine..But maybe im easily pleased.

[olly917]

What about the swift tune sw05? I thought that worked well in a 1380?

[Sam Walters]

It all depends on what you want the car for.

The SW5 works well because of its high ramp angles and that it presents good valve curtain area sooner then similar duration cams.

However, i still feel the 266 is a better camshaft to use just due to its extra duration. Even upto 270 degree rotation a 1275cc + a-series is supprising tracable.