Expected power gains - TBs
Discussion
Quick question for those in the know.
I'm looking at a silly project involving a Ford KA and the biggest Ford engine that will fit, whilst remaining a drivable road car. So far we're looking at the Puma 1.7 engine.
What sort of power increases are typically found from the following mods:
* straight-to-head TBs (bike or Jenvey items)
* full custom management (e.g. Omex unit)
There's loads of crap about the odd 8-10 bhp here or there from Superchips, dodgy exhausts, ram pipe filters etc. which sound like the usual BS to me.
Is it possible to get good power (I want 180-200 bhp) and also good drivability and reliability by using *proper* custom management? This is what I gather from the aggro people get with piggyback chips / bolt on stuff etc.
Assume the rest of the engine is in decent nick, with free flowing exhaust and can rev reliable to 8000.
(yes I know it's a 'how long is a piece of string' question but there must be plenty of people out there with experience of this sort of mod on 1600 cc class race engines. The only other criterion is that it must be drivable on road i.e. low revs smoothness - I am of the impression that proper mapping can deal with this?)
I'm looking at a silly project involving a Ford KA and the biggest Ford engine that will fit, whilst remaining a drivable road car. So far we're looking at the Puma 1.7 engine.
What sort of power increases are typically found from the following mods:
* straight-to-head TBs (bike or Jenvey items)
* full custom management (e.g. Omex unit)
There's loads of crap about the odd 8-10 bhp here or there from Superchips, dodgy exhausts, ram pipe filters etc. which sound like the usual BS to me.
Is it possible to get good power (I want 180-200 bhp) and also good drivability and reliability by using *proper* custom management? This is what I gather from the aggro people get with piggyback chips / bolt on stuff etc.
Assume the rest of the engine is in decent nick, with free flowing exhaust and can rev reliable to 8000.
(yes I know it's a 'how long is a piece of string' question but there must be plenty of people out there with experience of this sort of mod on 1600 cc class race engines. The only other criterion is that it must be drivable on road i.e. low revs smoothness - I am of the impression that proper mapping can deal with this?)
annodomini2 said:
you considered the 4age? its basically a ford bda engine with metric threads.
Never seen anyone offer this as a turnkey engine transplant. Are you sure it's possible? (of course everything's possible e.g. rover V8 in original Mini, but I'm trying to avoid being the first to try something, and also avoid a complete bespoke setup)
My stock Focus 2 ltr Zetec in my Westfield has the typical side exit exhaust,a pair of Jenvey 45mm throttle bodies (still a bit big,but ripe for that ported head and cams in the future) and an Emerald ECU.I believe that the stock engine in the focus was 132bhp and on Dave Walkers rollers after setting up was 175bhp and 156lb/ft torque.I would have got more bottom end torque with 40mm T/B's but decided that I would put 45's on and reap better power with the Raceline head and cams with the quoted 220bhp on 45's.That should give you an idea on improvements that are possible on a 2ltr.
justin s said:
My stock Focus 2 ltr Zetec in my Westfield has the typical side exit exhaust,a pair of Jenvey 45mm throttle bodies (still a bit big,but ripe for that ported head and cams in the future) and an Emerald ECU.I believe that the stock engine in the focus was 132bhp and on Dave Walkers rollers after setting up was 175bhp and 156lb/ft torque.I would have got more bottom end torque with 40mm T/B's but decided that I would put 45's on and reap better power with the Raceline head and cams with the quoted 220bhp on 45's.That should give you an idea on improvements that are possible on a 2ltr.
Marvellous, exactly the sort of info I was after. Many thanks
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