sammini7
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| posted on 18/11/17 at 05:37 PM |
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Engine Choices??
Hi guys
I am in the process of selecting an engine for my Locost build, these are my choices and i would love your feedback:-
1) Honda K20A
2) Ford Zetec ST170
3) Ford Blacktop 2.0 Zetec
4) Ford Duratec ST150 2.0
5) Ford Ecoboost 1.6
6) Ford Ecoboost 2.0
7) VAG 1.8T
Cheers
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Badger_McLetcher
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| posted on 18/11/17 at 06:23 PM |
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Been over this recently looking at engines for my Dolomite. This is what I came up with in research:
Out of that lot I'd go for the ST150 duratec because it's light, relatively cheap to get hold of, has a RWD gearbox and clutch options
that bolt on and are pretty tuneable.
The VAG 1.8t is a good lump but you'd have to get an adapter plate made up to marry it to a rwd gearbox, not a world ender but a faff when
other engines are just as good IMO. Same with the K20A.
Ecoboost engines are meant to be pokey, fuel efficient and have a bolt on RWD option, but the aftermarket engine management is insanely expensive at
the moment. I think you may be able to use an original ECU, but there'd be a hell of a lot of electickery involved in getting it to work.
Zetec and blacktop are, on paper at least, just not as good as the Duratec.
Hope that helps some 
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big-vee-twin
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| posted on 18/11/17 at 08:06 PM |
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Duratec nuff said
[Edited on 18/11/17 by big-vee-twin]
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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SPYDER
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| posted on 18/11/17 at 08:14 PM |
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If I was starting over I would choose the VVTi "BEAMS" version of the Toyota 3SGE motor found in the Lexus Altezza RS200.
Comes ready with a superb 6 speed box and 210hp. Titanium valves and 8000+ revs.
Not the cheapest solution nor the lightest but ready to go in RWD format.
I do have a penchant for Toyota. I have the earlier Rev3 version of the 3SGE in my car which was a PITA to convert to RWD.
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Ugg10
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| posted on 18/11/17 at 08:21 PM |
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what about the F20 Honda in the s2000, expensive to start with and quite tall but comes pretty much ready to go.
---------------------------------------------------------------
1968 Ford Anglia 105e, 1.7 Zetec SE, Mk2 Escort Workd Cup front end, 5 link rear
Build Blog - http://Anglia1968.weebly.com
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craigdiver
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| posted on 19/11/17 at 08:50 AM |
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BMW 6-cylinder - ready to go with factory getrag box - lots of torque.
If it ain't broken, fix it anyway (just because).
Building - BMW powered Haynes Roadster/442E hybrid.
Volvo C30 T5 Polestar
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sdh2903
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| posted on 19/11/17 at 10:49 AM |
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Depends on your budget really and your preference for Forced induction or N/A.
I built a 2.0 ecoboost car and can say your probably 4k minimum. But for that you do get a nearly new engine with 250bhp and nearly 350ftlb. The low
down torque gave huge giggles but is a handful. Ecus are starting to be easier available. The ford racing ecu comes ready mapped and with everything
to run including loom and electronic pedal. It would also give 35-40 mpg even when driving like a knob. Mx5 mk3 box bolts straight up.
Out of the ecoboosts I would say the 1.6 is the more natural choice for a 7. It's lighter, smaller and is same as a sigma so sumps and bell
housings readily available. 180bhp out of the box and cheap as chips to buy used.
If It were me id go duratec. A set of throttle bodies and you'd be up at 190-200 bhp without the complications of a turbo install. Nice and
lightish being all alloy.
[Edited on 19/11/17 by sdh2903]
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ElmrPhD
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| posted on 19/11/17 at 10:58 AM |
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K20A(x) mated to an MX-5 gearbox via the well-designed kit from K-Miata. Thus, mating this awesome engine to RWD is no longer the issue that it was
when I had one. Aftermarket support and knowledge of that motor is fantastic. It is very tunable and (readily?) available.
Buddy of mine has that in his MNR.
I have an F20C in my MNR. Expensive, fantastic and increasingly rare engine. Tall, as said, and the 6-spd is heavy. Honda already maxed it out,
practically speaking. 240 hp from factory is good enough for me, though. Getting my Omex ecu to achieve that might be a challenge (should know in a
couple weeks), but the (required) custom intake and exhaust make using the original ecu a challenge. I have one such ecu with matching keys/lock for
sale... Others have successfully used the Honda ecu, but I already had the Omex (710) in my possession and wanted the ability to lower Vtec
engagement.
Steve, in the NLs
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