Re: When is enough bhp enough?
Posted: Fri Aug 18, 2017 7:17 pm
Or buy a Porsche Cayman?
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vincereynard wrote:Or buy a Porsche Cayman?
prezoom wrote:Any time when you get less than 10 pounds per horse power, you will be getting serious performance. An Elan with 175 hp, even with a 180 lb driver is approaching that number.
Spyder fan wrote:
Wouldn't you prefer a Boxster Spyder?
http://www.porsche.com/microsite/boxste ... /uk.aspx#/
elan66 wrote:,but i do know that building a high power twin cam is not cheap and they need to be revved more than a zetec to get the power............
good luck
rgh0 wrote:elan66 wrote:,but i do know that building a high power twin cam is not cheap and they need to be revved more than a zetec to get the power............
good luck
Yes I agree building a quality, high torque, high power twin cam is not cheap and a standard larger capacity Zetec makes more power and torque and comes cheaper out of the box but costs a bit more once fitted and you loose some market value in the process ( if that matters)
I have had the opportunity recently to look a little at modern 4 valve performance engines since my son got a 2004 Golf R32. At 3.2 litres its twice the capacity of a standard big valve twin cam and its output is almost exactly twice the torque and power, despite 4 valves, knock sensors, higher compression ratio and fuel injection and 50 years of development. The naturally aspirated engine world does not appears to have progressed in specific output much except for the fact it does not leak oil and its emissions are less! The story is the same for a Lotus 9xx engine in my Esprit.
The biggest difference in driving terms with a modern engine is the drive ability from cold and from low revs that modern fuel injection and electronic control of fuel and ignition offers and that Keith is trying to replicate from Weber's with his jetting modifications
cheers
Rohan
Elanintheforest wrote:The AX is the strongest block you can get, and with the tudrided crank and rods, and everything very finely balanced, it will run happily to 8500rpm, with is approximately where the dynamo warning light is on the tacho!
Mark Kempson