98cc's Resurrection Of The "Smith Spider" 2 stroke race car--Now with SOUND

[kws]

On 09/03/2018 at 21:41, 98cc said:

 

Is he towing that with a suitably awesome old Suzuki Alto?

[Tumeke]

I'd say MG Metro.

[Poo]

This thing looks so rad. 

Those pipes are going to sound amazing. 

[Steelies]

awesome!

[kws]

5 hours ago, Tumeke said:

I'd say MG Metro.

Concur, still rad.

[98cc]

Yes VG it has an open diff, as Raizer says with one axle effectively broken the wheels wont drive. As the gearbox is bolted directly to the engine the main shaft is always spinning. This means that there is no need to double clutch but the clutch is used for all gear changes. Dennis made a new gearset for the gearbox which is dog drive and added an extra gear to turn it into a 4 speed instead of 3.

 

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On 3/13/2018 at 09:32, Muncie said:

The only way it could be any cooler is if he drove it to work on Fridays.

The last wof it had was 1994.....

 

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9 hours ago, Roman said:

My understanding is that the power to weight is absolutely bonkers. 

Dennis cant remember the weight but he thinks its about 400kgs, i will have to get it on the scales sometime. He also thinks that the engine is putting out about 150hp and there are still some things to be done to it, raising the compression being the main one. 

 

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7 hours ago, Tumeke said:

I'd say MG Metro.

Yep spot on, he still has this in his garage! 

 

Posts without pictures etc etc...

 

The rest of the structure glued into the front box

 

And gluing the base piece on, various weights from around the shed helped with this task! 

 

Next job will be fitting this to the body 

 

 

 

 

 

[Poo]

Louis, if you need a 2stroke dyno, I use Lincoln at R&R Powersports. I'm sure he would like to strap this to the dyno and get it running just right for you. 

Not cheap, but he knows his stuff. 

[98cc]

Thanks for that, might have to get in touch with him In the future. Dennis's mechanial fuel injection and ignition set up both use specially shaped cams for fuel metering and ignition timing. This stuff is all well sorted so hopefully I should not have to do much in the tuning department. 

[KP_wag]

Those pipes are amazing, bet it sounds angry as hell

[Testament]

I think the v4 jonsons were 90hp in boat trim so 150hp with intake spannies and more rpm sounds about right.

definitely interested to hear if it sounds wildly gargly like the boats but angrier

 

anyway good job, keep up the good work!

[98cc]

Thanks! Yep this one started out as 85hp, redline is 6k at the moment, i don't know what it would of gone to in a boat though.

 

First fit up of the new front section 

 

And the paint sanded of in preperation for gluing the front section on

 

Guled on, the joint will be reinforced with fiberglass later on 

 

Next up guards 

 

 

 

 

[Roman]

This car has definitely ended up in the right hands

[flyingbrick]

I agree. All of the work that comes out of this family seems to be exceptional ( @98cc you also built that plane with your dad? hopefully i'm not confused)

Its so great to know that people still build/restore things with this much love and attention to detail. 

[tortron]

And anyway, if the 2 stroke is no good, you can emulate it with a cheap Mitsubishi engine

[98cc]

On 3/20/2018 at 09:56, flyingbrick said:

I agree. All of the work that comes out of this family seems to be exceptional ( @98cc you also built that plane with your dad? hopefully i'm not confused)

Its so great to know that people still build/restore things with this much love and attention to detail. 

Cheers for the comments Roman and FlyingBrick!   Yes the plane was a team effort with myself, dad and the grand dad. Its been finished a year now so the first annual inspection is this weekends job.    

 

On 3/20/2018 at 13:41, tortron said:

And anyway, if the 2 stroke is no good, you can emulate it with a cheap Mitsubishi engine

Good idea Tori, will keep that in mind!

 

[MKD]

I realize you've all seen, but seems appropriate....

if the spider sounds anything close to this it'll be amazing

 

 

[Testament]

every time ive thought about the idea of using two stroke boat motors in non water based things I have wondered if you need to change your piston to bore clearances, like your coolant cirucit in a car is never going to be close to that of once through water cooling. maybe thats just my engineer brain over thinking it though. 

[Kimjon]

On 3/22/2018 at 08:34, MKD said:

I realize you've all seen, but seems appropriate....

if the spider sounds anything close to this it'll be amazing

 

 

What's the details of that car? Got a website link?

[98cc]

3 hours ago, Testament said:

every time ive thought about the idea of using two stroke boat motors in non water based things I have wondered if you need to change your piston to bore clearances, like your coolant cirucit in a car is never going to be close to that of once through water cooling. maybe thats just my engineer brain over thinking it though. 

It doesn't seem to be a problem at all. Dennis said that he never had issues with overheating, the car has quite a small radiator aswell.

[98cc]

L/H guard repair:

 

first up was shaping a foam block to fill in this gap 

 

And sanded all the paint of the guard. The LH side had a fairly clean break from the rest of the body so it fitted back into place well. The front was a bit broken so I cut it off clean and fitted a new foam block 

 

First layer of fibreglass going on, I am going to be putting on 2 layers inside and out. 

 

And all sealed up with 2 layers of glass. It needed a very light skim of lightweight filler in one patch which was a bit hollow. I did this before laying on the glass.

 

Im very pleased this guard was able to be reused 

 

One more gap to fill!