How much HP
Posted: Thu Dec 04, 2014 2:37 pm
How much HP can a stock S1 Gearbox, differential and the donuts handle? I'm rebuilding my engine and I always think about the downstream gear and what it is designed to handle.
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Grizzly wrote:Many years ago we fitted a (Dare i say it) ford zetec engine putting out 200hp at the fly in a engine-less +2 we got of Ebay for ?500, got some CV joints rigged up some shafts and the first thing it did when it was driven was snapped the Mounting lug off the diff
I have to say i've reformed my ways since then and that car has now got a Twincam engine back in it (and some seats/trim).
Certified Lotus wrote:All great info, thanks. For the record, I'm not doing track days nor am I interested in street racing. Just like having great mid range torque available for spirited driving without having to get anywhere close to the red line.
I particularly liked TTR "list" of modifications. Puts things in perspective.
JohnDanbyRacing wrote:.......... from memory 4.1 diff at 8200rpm will do about 130mph.
Grizzly wrote:Certified Lotus wrote:All great info, thanks. For the record, I'm not doing track days nor am I interested in street racing. Just like having great mid range torque available for spirited driving without having to get anywhere close to the red line.
I particularly liked TTR "list" of modifications. Puts things in perspective.
I'm not the most experienced when it comes to tuning Twincams but the ones i've driven have all started to get very peaky past the 160hp mark for the road. IMHO a real 130hp Elan is enough for the street but unless they have had work there usually more like 100hp elans which isn't so hot.