Honda S2000 engine and box

PostPost by: gav » Fri Jun 30, 2017 6:05 am

Hey Dave

Glad to see you're still going forwards. I lost some inertia over the spring (note the use of seasons now rather than months) but am now back at it.

Your pedal set up prompted me to upload my unusual solution on my blog - being taller Ive been wrestling with legroom and happened to come across a pedal box with vertical masters to create a little more space. As you, I didn't want to have the masters close to the wheel so they are inboard.

I love the way we come up with solutions and it is great to share ideas.

Keep up the good work
Gavin
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PostPost by: bigvalvehead » Fri Jun 30, 2017 7:07 am

Hi John
using 205/60/13 on 6 1/2 inch magnesium minilites.

Here is the gear calculation based on the 3.62 diff and Honda 6 speed box with max revs of 8900.

Cheers
Dave
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Turn Zero Technical Resources Gear Calculator.pdf
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PostPost by: bigvalvehead » Fri Jun 30, 2017 7:09 am

Hi Sandy
I made a template from flat glass sheet then folded a sheet of stainless to use as a mould for the pedal box mounts which I then bonded in place.
Dave
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PostPost by: JonnyPlus2 » Fri Jun 30, 2017 12:22 pm

Hi Dave,
Well at 170.6 mph, it should be fast enough! My issue with the Honda box is that 6th gear is too low. I occasionally contemplate using a T5 box with the S2000 mill. First four gears are similar to an Elan with a .63 over drive fifth. Talk about having one's cake and eating it too.

I noticed that you went to a Sierra final drive. Do you think that the Elan rear end cannot be made strong enough to cope with 240 Japanese ponies? My issue is that the cost of getting a Sierra diff and shipping it over to the Great White North would make even Tony Thompson's parts look cheap.
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PostPost by: el-saturn » Fri Jun 30, 2017 1:22 pm

your work looks nice and tidy dave and continue as you need to: you should see what a brilliant british fabricator is capable of doing - those are the REAL magicians: templates made of cardboard AND 30min later you have your chromemoly bracket for lets say a side pod! sandy i luv those guys!!
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PostPost by: bigvalvehead » Fri Jun 30, 2017 4:31 pm

Hi Jonny
I'm sure with the correct bits the diff could take 240 BHP as the race Elans regularly run around 180 and they are doing starts where they drop the clutch at 6500rpm with sticky tyres.

I went for the Sierra diff to allow for the fitting of throttle bodies later which will up power to around 290bhp and maybe even adding a supercharger!!!

I have a T5 with the ratios you mention with an alloy belhousing to mate to a Turbo twincam. The big step from 4th to 5th would drop the Honda motor revs off cam and could cause other problems.


If you ran a 3.54 diff or even a 3.77 that would be ok with the Honda box and that keeps things simple at that end.

Cheers
Dave
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PostPost by: h20hamelan » Fri Feb 19, 2021 8:19 pm

Probably worth adding wiki
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PostPost by: 2mAn » Mon Feb 07, 2022 11:41 pm

bigvalvehead wrote:Maybe I should have built a LHD car instead.
Dave

You said this so many times, it has planted a bad seed in my peabrain :twisted:
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PostPost by: 2cams70 » Tue Feb 08, 2022 12:51 am

The S2000 engine is nuts. I want one. Probably the last true purist naturally aspirated production engine to be made. You certainly wouldn't find Toyota making something like that. It was all Honda too. The clever bits weren't farmed out to some other contractor (eg. Yamaha).

I'd be interested to know how this project turned out.
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PostPost by: 2mAn » Tue Feb 08, 2022 1:16 am

Yamaha has consistently made the performance engines for Toyota, but I understand where you’re coming from. Closest thing Toyota had was the 2ZZ which I wish they developed more. It was on par with the Honda B18 motor, 1.8L with 180+ bhp…

Anyways, I’m with you on this and am excited to see this cross the finish line. Keep at it!
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PostPost by: 2cams70 » Tue Feb 08, 2022 2:34 am

For your entertainment - BMW E36 with S2000 engine.

There's a few such conversions on youtube. But this one is one of the the most entertaining. Some good eye candy too!

https://www.youtube.com/watch?v=bCo00asduEQ
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PostPost by: tonyabacus » Tue Feb 08, 2022 9:18 pm

Hi Dave
I am curious to know where you got the Shapecraft style top from or did you produce it yourself. Often thought how nice the original looked when it first appeared, but wondered how difficult to fit
Tony
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PostPost by: 2mAn » Wed Aug 03, 2022 10:09 pm

bigvalvehead wrote:Hi Jonny
I'm sure with the correct bits the diff could take 240 BHP as the race Elans regularly run around 180 and they are doing starts where they drop the clutch at 6500rpm with sticky tyres.

If you ran a 3.54 diff or even a 3.77 that would be ok with the Honda box and that keeps things simple at that end.

Cheers
Dave


Hey Dave,

Any updates!? Im sure its gotten warm enough for you to get out in the garage, but hopefully the time has also become available.

Question about these diff ratios, which of these are available for the Elan and what would be needed to make that work? Using an Elan diff seems like it would make 'mating the two' much easier as a custom driveshaft will be needed either way
-Simon
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PostPost by: Slowtus » Wed Aug 03, 2022 11:01 pm

Late to the party here but as one who has gone foolishly where sensibles fear to tread - I stuffed this S2000 kit and caboodle in my '66 Cortina GT - and it went rather well.

Until I smithereened the diff, but that was to be expected.

In an Elan, I would rather go the Zetec or similar route - much lighter so the balance of the car won't be noticeably affected and even in the Cortina I found it tough to unleash and sustain 9000rpm for long periods of time.

I recently drove a Plus 2 with a 2.0L Zetec on ITBS and found it to be very nice (as was the S2000 engine) and the balance of the car appeared to be unaffected.

That S2000 engine/box is heavy AND tall (not a problem for the Cortina) but...

Much though I loved my conversion/perversion I doubt I would love it as much in an Elan.


Or maybe I would...hmm
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PostPost by: 2mAn » Thu Aug 04, 2022 4:21 am

Slowtus wrote:That S2000 engine/box is heavy AND tall (not a problem for the Cortina) but...

Much though I loved my conversion/perversion I doubt I would love it as much in an Elan.

Or maybe I would...hmm


That’s the most bi-polar reply I’ve seen haha these things make us crazy !

Strange because some internet searching from what seems like reputable sources shows that a Zetec weighs ~250! the Twincam is about 290 and the F20c is about 325, so clearly the Zetec appears to be the lightest of the bunch. However I believe it’s down on the F20C by a decent amount of power, right?... plus who doesn’t want a 9000rpm redline?!
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