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View Full Version : What car engine for a trike?


ratwing
25-06-2004, 07:13 PM
Evening All, does anyone know of a reasonably common V8 smaller than the Rover or a V6 lighter than the Ford? (The V8 in the Audi A8 looked promising, 4.2l and only 18" long :D but too many electronics and no doubt v. expensive to buy) Or maybe a transverse straight 6? If this sounds like I don't know what I'm building you're right, I'm in the planning stage and want to try and consider all options before I start. Not interested in VW or Porsche engine though. Thanks in advance!

"HIGH TOWER"
25-06-2004, 07:30 PM
What engine for the trike ?.WELL i run the rover 3,500cc on an auto box hooked up to a e type IRS rear the whole lot weighs in at 750 kilos.but its a bit to long to pass the new msva. but you could easlerly shorten it . why do you want a V8 , i chose it for plenty of grunt cheap spares.but if you want to go the auto box route lots of options . the ford pinto is worth a look at 2 litre and you can get an auto box for same .best way is to get out there and try some out . then you can have a good guess at which way ya want to jump. try a few meets . trikes r us over augast bank might be worth a look . i will be there give ya a ride on my trike if that will help ya make up ya mind. :cool:

Blackjack
25-06-2004, 08:41 PM
Alfa Romeo. Renault. Two cheapish V6 motors. Alfa V6 out of a 75 with the transaxle from same (either auto or manual) use the DeDion tube as a rear frame member. Inboard discs, lots of ponies. Cars can be bought for 200-300. DO NOT buy one with a suspect head gasket.

By the way almost anything is lighter than the V6 Ford Essex (3 Litre), even the 302 V8 is only about 40lb heavier.

dracken1
28-06-2004, 09:16 AM
might be the odd daimler v8 still hiding somewhere

Blackjack
28-06-2004, 11:29 AM
Daimler V8= 4 Triumph twins.

Edward Turner's other materpiece.

Wasn't there a 4 litre one in the Daimler Major too? Mostly Hearses.

Pennywise
28-06-2004, 11:42 PM
Daimler Majestic.......I saw a trike in bristol once, it was 2ltr pinto, with the front bolted direct to the engine mounts, what looked like an mgb chrome wire rear axle, the diff was bolted direct to the bell housing and the bell houseing direct to the engine, so you were sat only around 4 inches in front of the rear wheels, but with a thrown out front end this would compensate for the looks,,,,,1 gear, and all you do is slip the clutch to get moving,,,,,,cant be simpler......heres an idea I'm fooling around with at the mo, I'm looking at an old renault 20 engine, I think its a 2 ltr, but its the one with the plugs through the top, and its a cross flow, rather than the l8er 18/21/25/traffic master engine with the carb and the exhaust on the same side, so behind the engine you keep the box (early 18 auto with out the electroinic crap) with the shafts comming out either side, angle the shafts back a few inches to keep the wheels behind you, and do the same idea as the pinto and bolt the front frame to the engine mounts useing the engine as a strees member, and I was thinking ktm upside down forks thrown right out, so long low and loud....just the way it should be:)

anywho....good luck

Pennywise

Doro
29-06-2004, 08:50 AM
if you really want to know check out some kit car sites (sorry don't know any offhand)

if I was going to do it I'd have a rotary engine from a RX7

that would be fun

but I don't like car engined trikes much cos of their size, and the engines look ugly all exposed etc, be interesting to build a mazda trike though lol

found this, mite help

http://www.mazdarotaryengines.com/

PS I have no idea at all what weight it is or what weight you require lol

dracken1
29-06-2004, 09:42 AM
someone i know in the midlands has half an nsu sitting in his garden

Blackjack
29-06-2004, 10:20 AM
Daimler Majestic.......I saw a trike in bristol once, it was 2ltr pinto, with the front bolted direct to the engine mounts, what looked like an mgb chrome wire rear axle, the diff was bolted direct to the bell housing and the bell houseing direct to the engine, so you were sat only around 4 inches in front of the rear wheels, but with a thrown out front end this would compensate for the looks,,,,,1 gear, and all you do is slip the clutch to get moving,,,,,,cant be simpler......

You think that was good, you should have seen the Small Block Chevy that the same guy built on the same principles.

Pennywise
29-06-2004, 11:26 AM
I've got a Gm 350 Ci diesel in my Mk1 Granada Coupe, thats basicly an SBC.....and by buggery thats got some torque,,,,,the rear clip of that trike must be substantialy braced:)..this pinto jobbie was litterally a front frame made out of 2x4 box to hold the head stock and rad, a pinto engine, a bell housing and a rear axle...possibly a seat...but dont quote me on that.....it really couldnt have been easier:)

Blackjack
29-06-2004, 06:39 PM
I know the trike you're talking about. There were a few complexities involved in getting the drive from the clutch to the axle. From what I remember he used the first motion shaft out of the ford box and either cut the front off of the gear case or made a plate to carry the bearing.

The SBC used a MacCleod steel bellhousing and I think it was another MGB axle. Doesn't matter how big the engine is, it can only stress the axle by accelerating the weight of the vehicle, which is what dictates the stress on the axle.

Seem to recall that the front "subframe" mounted off the inlet manifold and the motor mount bosses on the block with a plate that went between the water pump and the block. The rear one was mounted to a plate which was sandwiched between the block and the bellhousing.

Solid lifter cam, 4 barrell carb, and nitrous..........

Pennywise
29-06-2004, 06:50 PM
sounds good, i was going to use a 4 speed escort box, that would be 4th and reverse only, just have a cover over the second shaft, so inside the cover is just a cv joint to hold the diff up, and i was just going to weld the diff up to lock it.......but the pinto i saw in bristol was 1990..is it still going around?...know of any pics?....ps, going to another extreme...any thoughts on trikeing a 1978 bristol vrt double decker bus?

Reliantman
29-06-2004, 09:18 PM
Oi fink that trike was in BSH, or an early Awol. Looked pretty good.

Alik Windrush
30-06-2004, 01:28 AM
Err... Why would you want to lock the diff...? Will you be hill climbing, mudplugging or small oval racing..?

Blackjack
30-06-2004, 03:00 AM
...but the pinto i saw in bristol was 1990..is it still going around?...know of any pics?....ps, going to another extreme...any thoughts on trikeing a 1978 bristol vrt double decker bus?

The Pinto trikes not about as far as I know. Though the guy who built it did build several other trikes and bikes. The bikes were car engined with a bevel box hung on the bellhousing and chain drive to the rear wheel, which was usually a car wheel on a hub of his own devising.

I think you might find that tiking a double decker bus puts you over the weight limit....................

Pennywise
30-06-2004, 10:24 AM
why would i lock the diff?....mmmm...lets see, if i have the pinto engine as henry intended it, inline, and you have the escort box so you have 1 shaft facing back wards and 1 facing forwards, the 1 facing backwards would be connected to an offset diff, the 1 faceing forward would be connected to bugger all. If you know anything about diffs, you would know that they are built so that either wheel can be driven at a different speed to let a car go around corners, or if you jack 1 wheel up of the ground the wheel would spin and the car wouldnt move forward, and you obviously never considered the reduction gears inside the diff either, before making that statment......so I would lock the diff so in 4th gear I would be getting 1to1 gear ratio with forward motion, not 1to38 with no forward motion....I was an engineer long before I was a tattoo artist you know

Pennywise
30-06-2004, 10:30 AM
there is a weight limit for a trike?.....bummer.....any idea what it is?, and would that make Jessie James Peterbuilt trike illegal to ride in this god awfull country?.....my Bristol vrt mobile tattoo studio weighs a smidge over 12 tonnes fully laden, and thats on a bog standard normal car licence, If you had your licence before the new ones came out....the you can drive my bus...i mean your granny if shes still got her licence can drive my bus...scary aint it

Blackjack
30-06-2004, 06:42 PM
why would i lock the diff?....mmmm...lets see, if i have the pinto engine as henry intended it, inline, and you have the escort box so you have 1 shaft facing back wards and 1 facing forwards, the 1 facing backwards would be connected to an offset diff, the 1 faceing forward would be connected to bugger all. If you know anything about diffs, you would know that they are built so that either wheel can be driven at a different speed to let a car go around corners, or if you jack 1 wheel up of the ground the wheel would spin and the car wouldnt move forward, and you obviously never considered the reduction gears inside the diff either, before making that statment......so I would lock the diff so in 4th gear I would be getting 1to1 gear ratio with forward motion, not 1to38 with no forward motion....I was an engineer long before I was a tattoo artist you know


Might just have been easier to say you were on about a front wheel drive box.

Seems a little pointless to me though. You're going to end up with the weight of a gearbox, but without any gears.

dracken1
30-06-2004, 08:02 PM
i thought you meant a rwd g/box as well.
and i remember cornering on the old 3 wheeled atv's
so when i read you were going to lock the diff i thought of the fun you gonna have :)

Pennywise
30-06-2004, 10:58 PM
my mistake, i thought saying escort, and keep the engine in line, might have given you the idea of a mk3/4/5/6/7/8/9 estort:)

my bad

Pennywise
30-06-2004, 11:00 PM
wieght of box is negligable on a trike really, but the box would be well empty, and have a cheeper build rate, no expensive bronze bushes and bearings to fabricate:)

100%Pat
01-07-2004, 12:19 PM
I also think that if you are trying to teach Alik anything about trike building... its rather like teaching your granny to suck eggs..... :rolleyes:

Pennywise
01-07-2004, 09:10 PM
ahhh...that expalins a lot :)

http://www.granadaclassics.com/pennywise.jpg