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1275 Engine What To Do


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#16 holmesy

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Posted 19 September 2012 - 10:04 PM

quick point on peter baldwins rolling road, he is a wizard at tuning carbs and you wont get anyone better but dont go by his read outs, his rolling road is miles out on read outs, we had a mgc engine built and then rolling roaded at his and he came back with 230 bhp, we then took it after later and put it on a proper race dyno at damico engines( the dyno you see in specialist components) and came back with 170bhp which his dyno is so accurate for the use of up to 1600bhp. later damico built that engine up to 285bhp and plan on going to baldwin expecting 330-340 by what we have calculated from other friends with less powerfull engines and seeing over 310bhp

#17 cliche

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Posted 20 September 2012 - 01:56 AM

Swiftune SW5 cam is a really good fast road cam, it'll run fine at low revs and pull hard from 2.5k to 7k. I'm well impressed with mine and glad I didn't go for a 286, the SW5 has none of the problems people have mentioned above.

Maniflow SIIR manifold was the other bit that made a a big difference over the cheap LCB that was on the car when I got it.

same reason I've gone for an SW5 in mine

#18 icklemini

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Posted 20 September 2012 - 09:35 PM

Wont be disappointed with a SW5 in a road car... doing road mileage and use.... lots of torque and no need to burn the motor out by revving the nuts off it...

#19 Cooperman

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Posted 21 September 2012 - 10:00 AM

Wont be disappointed with a SW5 in a road car... doing road mileage and use.... lots of torque and no need to burn the motor out by revving the nuts off it...


Quite agree. It always surprises me that some people fit very 'hot' cams like the 286 in road engines, then don't build the rest of the engine to cope with the revs at which max power is produced. So they then have the disadvantages the 286 gives in terms of lower bottom-end torque and not much power low down but can't use the necessary revs, like up to 7000 rpm, to see the real gains the cam can give. Too much reading the two 'Mini Comics' maybe.
Of course, if you fit a 286 and use the wonderful power it can give by using 6500 rpm all the time, you'll be re-building the engine quite often.

#20 HUBBA.HUBBA

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Posted 24 September 2012 - 08:00 PM

Found my sw5 superb before i put the charger on. Went like a rocket after 2500rpm, but still very drivable.

Edited by HUBBA.HUBBA, 24 September 2012 - 08:01 PM.





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