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hey all, i am currenly running a toyota mr2 1.6l engine in my race car and i want to switch to a honda i have to run a 1.6l so a B16A was what i was looking at the problem is its a rear engine car and the transmission needs to spin the opposite way that the honda engine turns. will this engine work properly with the cams ground to run backwards and run the engine in reverse, i am going to run the dohc without vtec

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why would you want to run it without vtec?

 

this engine will always run over 5000rpm so the variable timing would not be enough of a benefit to offset the cost of making reverse rotation cams for the VTEC engine unless someone already has them, the other problem is these engines will run with no computer controls to operate the variable timing. We can have cams made for the B16A that will work well at the high RPM we run.

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why yould it have to be reverse rotaion. if you put it in the car with the cam gears to the left like it is now it'l still run normally. you could always use an automatic tranny and come up with a paddle shift setup.

Edited by Hatch92
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1st question

 

we will run a crank trigger ignition and a MSD system to control the spark and advance curve, we build our own intake for weber 44 carbs and do not need EFI system.

 

2nd question

 

a honda engine runs counter clockwise we need it to run clockwise therefore we need to reverse rotate the engine, to suit the VW transmission which turns clockwise.

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we use the VW tranny because the engine is in the back of the car as you will see in the pic i attached. a honda tanny would not withstand the torque load and shock we will be producing. and we cannot get the suspension travel out of the CV's or axles. we use a VW tranny with porshe 930 racing cv's with bigger custom axles. racing is expensive thanks for replies

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first of all we cant do that because you have 2 very different length axles and the honda cv's cant go to the 26 degree angle the porshe ones dom and there isnt any gears available on the market to match our ratios and they would break when the car lands and our car is narrower the the front of a honda our tailing arms come way up into the engine compartment and will only allow for the engine to be lenghtways

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flip the ring and pinion in your tranny, and get your starter rewound. call up Kennedy Engineering and get an adaptor plate, and flywheel.

 

done.

 

Or why not just redesign and go mid rear? then you don't have to mess with the tranny, and you just need an adaptor plate and flywheel.

better weight distribution, so the front doesn't push as much.

 

Unless you have a built 091 or mendola, the honda tranny would hold more torque btw, but it wouldn't work in your situation.

Edited by Pyrorocketeer
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They used to do it with corvairs cranny, so the idea isn't too far fetched.

 

 

Oh btw kennedy engineering makes reverse rotation starters too.... here

 

EDIT: it can be quite possible to make one run backwards now that i think about it.... really easy with carbs too, and a little more work with fuel injection.

 

Just need a custom cam (delta cams would probably regrind your stocker), external oil pump (that probably means dry sump setup $$), and probably an electric water pump.

Edited by Pyrorocketeer
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It is a built special ratio 091 transaxles we us, they have different 1st 2nd main shafts, 3rd and 4th gears and various ratio ring and pinions , you cannot run the trans backwards as in a mid engine because the ring gear is not designed to take the shock load on the backside of the teeth nor will the gear teeth lubricate and cool properly running in reverse rotation as the cup of the tooth is designed to hold oil for hydrodynamic loading and the backside of the tooth will not do this. this has been tried by others and the premature wear and failure was bad.

Mendenola transmissions can have the ring gear flipped and they will work but at $13,000.00 per trans for a new one I will try and avoid them for now.

Web cam in California can grind the cams for reverse rotation I believe, but we were just checking to see if anyone has done this before.

Revese rotation engine have been around since the early 60's they use revese rotation engines in boats all the time, the right engine will rotate clockwise and the left engine will rotate counterclockwise to balance the boat, all you have to do is have a cam ground that will allow this to happen by changing where the exh and intake cam timing occurs, they do it alot with sprint car engines so the car will turn left easier, not fighting the engine torque trying to twist the frame to the right.

we will be running a dry sump oil system with and external pump.

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you cant turn a honda engine backwards period , forget it. the reason i say this , is cause its a timing belt engine , and the belt is only designed to turn one way. if it turns backwards , it will slack and slip for sure. i wasnt tlaking about anything other than honda engine pyro , not that crazy VW crap , lol. seen a badass beetle on blow it up pyro , ran 12.4 1/4 miles all day long. very consistent. he lost his clutch for a few runs , kept running it , lol , than all the sudden it started working again , lol.

Edited by cranny
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why can't we run the tensioner pulley on the other side, use a manual tensioner like they used on 2.2 Chry engines,fabricate a mount, block off the waterpump and run and electric water pump, all ready thought out the belt problem, it's no big deal, I think we can make more horse power with the honda over the toyota not to mention it is lighter.

anything is possible, I guess no one has tried it yet

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