Login | Register
SearchMy Stuff
My ProfileMy PreferencesMy Mates RSS Feed
Reply to Topic
Author Discussion

Richard-G

Original Poster:

1,215 posts

58 months

[news] 
Wednesday 10th October 2012 quote quote all
Hi All, got a noob question for all you lotii experts!

obviously reading these forums and seloc i see all types of engines going into the Elise, Honda K20A2, Ford Duratech, T series etc etc.

Seems like the above Renault sport engine would/should also be a transplant candidate. High revving, i'm assuming its lightweight, Tuned by Mecachrome (of F1 Fame, current V8 in the F1 'lotus', all the GP2 cars), has proven to be reliable and is easily tunable via remaps* and a plethora of off the shelf parts.

its that flexible its sprouted a turbo and powers the GP3 cars, they're tiny!

Another bonus i see is that the donor car is cheap, has a propensity to find its way into ditches due to its core audience.

oh and they sound a bit good as well** All pops and bangs.


what am i missing?

(apologies in advance if this is a stupid question)

kambites

39,571 posts

104 months

[news] 
Wednesday 10th October 2012 quote quote all
I'm sure it'd be possible. I suppose the question is "what would it do better than the K20?".

Richard-G

Original Poster:

1,215 posts

58 months

[news] 
Wednesday 10th October 2012 quote quote all
kambites said:
I'm sure it'd be possible. I suppose the question is "what would it do better than the K20?".
Indeed, i'm thinking it would be lighter and possibly cheaper. After looking at both K20's and the Renault engine it also looks a deal Smaller.


Exige77

1,542 posts

74 months

[news] 
Wednesday 10th October 2012 quote quote all
There is a lot more to it that just plonking it in.

It's taken many years to get the Honda to work properly in a Lotus.

Same with the Audi Lump and the Duratec.

It's possible but will it be an upgarde on what's already out there with sorted electrics, drive shafts,engine mounts, gear linkages etc etc.

Ex77

chuntington101

4,651 posts

119 months

[news] 
Wednesday 10th October 2012 quote quote all
I think the gearboxes are a bit weak form what i have heard on here. obviously a CUP engine could be used with a full on sequnetical gearbox.

Also if you are wanting a turbo motor why not go for the Megan R26 engine as its already turbo'ed and should have a stronger gearbox to boot!
Advertisement

Mark B

1,526 posts

148 months

[news] 
Wednesday 10th October 2012 quote quote all
I would agree with Henry (Exige 77) to say that if you're going to all that effort, the Honda and Audi transplants are known.

The Duratec, which I did, needed a lot of bespoke items, such as adaptor plate, flywheel, Manifold, mounts, etc but the driveline, i.e. Gearbox, Gear linkage and driveshafts all remain standard...

I would think the Renault engine would be great, but it's nothing special in comparison to what's available.

For a 1 off, I am sure it would be good.

Richard-G

Original Poster:

1,215 posts

58 months

[news] 
Wednesday 10th October 2012 quote quote all
Thanks for the replies chaps, I understand it's not just a case of winching it in and praying it works, more a case of why it hasn't been considerd in the past.

In my eyes it's certainly a match for the n/a dura tech lumps and i would stick my neck out and say with a bit of fettling it would be a match for the Honda unit. Taking into account it's smaller (not sure of the weights)

Food for thought anyway plus lotus Renault has a good ring to it!

tertius

4,891 posts

113 months

[news] 
Wednesday 10th October 2012 quote quote all
Richard-G said:
Thanks for the replies chaps, I understand it's not just a case of winching it in and praying it works, more a case of why it hasn't been considerd in the past.

In my eyes it's certainly a match for the n/a dura tech lumps and i would stick my neck out and say with a bit of fettling it would be a match for the Honda unit. Taking into account it's smaller (not sure of the weights)

Food for thought anyway plus lotus Renault has a good ring to it!
There is your answer: compare a known and proven conversion with masses of tuning potential and several turnkey options out there to a new one-off, with a largely unknown amount of effort to a) make it work and b) fettle it further in order that it would "match" the first option. I know which I would choose.

Richard-G

Original Poster:

1,215 posts

58 months

[news] 
Wednesday 10th October 2012 quote quote all
tertius said:
There is your answer: compare a known and proven conversion with masses of tuning potential and several turnkey options out there to a new one-off, with a largely unknown amount of effort to a) make it work and b) fettle it further in order that it would "match" the first option. I know which I would choose.
Well they both pop out at 200 Bhp, the Renault sport engine actually has a higher torque figure out the box 159ft lb for the rs engine at 5400 plays 142ft lb at 5600 for the Honda unit. With that in mind the rs engine is actually better out of the box so maybe I was a little harsh saying it needed fettling.

The rs engine has lots of turn key power solutions aswell, plus I'd be interested in a weight comparison.....not to mention price comparison

I think what it boils down to is the dev time has already been ploughed into the Honda Elise, why fix it if it ain't broken eh?





gofasterrosssco

623 posts

119 months

[news] 
Wednesday 10th October 2012 quote quote all
if you have the skills and facilites / equipment and a cheap doner with all the required parts, then theres no reason why it wouldnt be a good swap (for you)..

If you don't tick all of the above boxes (like most of us) then you'll be better off sticking to traditional engine package options..

Tiger Tim

1,510 posts

105 months

[news] 
Wednesday 10th October 2012 quote quote all
As an Elise owner I would have considered this if it had been developed at the same time as the Dura and K20 conversions, but to echo others, at this stage it just isn't viable when the alternatives offer pain free conversions.

Do it yourself and let us know how it works out, develop a kit to pay for your own conversion. smile

Exige77

1,542 posts

74 months

[news] 
Thursday 11th October 2012 quote quote all
Richard-G said:
Well they both pop out at 200 Bhp, the Renault sport engine actually has a higher torque figure out the box 159ft lb for the rs engine at 5400 plays 142ft lb at 5600 for the Honda unit. With that in mind the rs engine is actually better out of the box so maybe I was a little harsh saying it needed fettling.

The rs engine has lots of turn key power solutions aswell, plus I'd be interested in a weight comparison.....not to mention price comparison

I think what it boils down to is the dev time has already been ploughed into the Honda Elise, why fix it if it ain't broken eh?
The NA Hondas put out around 240 BHP and have excellent gear ratios.

Ex77



chevronb37

5,880 posts

69 months

[news] 
Thursday 11th October 2012 quote quote all
I wondered the same about the Peugeot lump which powers my Rallye. They are regularly supercharged to 300bhp+. Cheap, light, lovely torquey delivery and sound fantastic. But the other conversions are probably perfectly adequate for most needs.

I went out in a K24 engined car a couple of months ago putting out 356bhp. It was fairly brisk.

chuntington101

4,651 posts

119 months

[news] 
Thursday 11th October 2012 quote quote all
chevronb37 said:
I wondered the same about the Peugeot lump which powers my Rallye. They are regularly supercharged to 300bhp+. Cheap, light, lovely torquey delivery and sound fantastic. But the other conversions are probably perfectly adequate for most needs.

I went out in a K24 engined car a couple of months ago putting out 356bhp. It was fairly brisk.
Was that N/A??

chevronb37

5,880 posts

69 months

[news] 
Thursday 11th October 2012 quote quote all
chuntington101 said:
chevronb37 said:
I wondered the same about the Peugeot lump which powers my Rallye. They are regularly supercharged to 300bhp+. Cheap, light, lovely torquey delivery and sound fantastic. But the other conversions are probably perfectly adequate for most needs.

I went out in a K24 engined car a couple of months ago putting out 356bhp. It was fairly brisk.
Was that N/A??
The K24? SC and CC. Tony Stansfield's S1 if you know him.

Exige77

1,542 posts

74 months

[news] 
Thursday 11th October 2012 quote quote all

FlashBastd

255 posts

73 months

[news] 
Friday 12th October 2012 quote quote all
F4R has an iron block IIRC and isn't especially tuneable; note that most Clios only make around 190BHP, getting over 200 means a lot of work, and IMO 220 is the absolute max. Compared to the K20/24 this is a bit weak. Also the Ren gearbox is made of cheese!

wooooody

900 posts

120 months

[news] 
Monday 15th October 2012 quote quote all
chevronb37 said:
I wondered the same about the Peugeot lump which powers my Rallye. They are regularly supercharged to 300bhp+. Cheap, light, lovely torquey delivery and sound fantastic. But the other conversions are probably perfectly adequate for most needs.

I went out in a K24 engined car a couple of months ago putting out 356bhp. It was fairly brisk.
It's a heavy engine and it's canted quite a bit rearwards to help the weight distribution in FWD cars. Not either would be desirable in an Elise.
Reply to Topic