Engine and Transmission Tech

I'm building a Rover 3.5/4.0 to put into a Porsche 914. One of the main issues with this conversion is clearance between the firewall and the distributor. So, I'm looking at the Megajolt EDIS setup to get rid of the dizzy altogether. It seems like a rather simple conversion, but I'm not sure how best to drive the oil pump. I see two possibilities here:

The simplest would be to get a crappy dizzy and cut the head off and just use the gear and shaft to drive the oil pump.

The cleanest would be to replace the "old" style timing cover with the newer distributorless cover, which has the oil pump drive built in. Question is, will it fit with the 3.5 crankshaft and harmonic balancer?

Any other options?

Tom

I think the gearotor pump takes a longer keyway in the snout of the crank but may be otherwise compatible.

Jim

I used the older style dissy cover chopped off the dissy body and machined a recess in the top to hold the shaft from dropping into the engine with a 1/4" bolt and washer, if you leave a small flange to clamp the old dissy body into the housing with the original hardware, its not hard to do, I have been running this sort of mod for about 3 years now without a problem, you may need to make a top cover to prevent oil escaping from the top of the dissy body, not a very clear picture, and I did try a oil feed direct to the top from the pump to stop me having another timing gear failure, but I have removed this now,

Tom, If you do have a 4.0L, it has the longer key way for the late pump. I would not bother with a 3.5 L swap.Too much work.not enough umph. Same work to put a 4.0-5L+ in there ? Are you "married" to to the 901 t-axle? If not, you might consider, transverse? I'm working on series II, Toy-MR 2 turbo t-axle(s) to Rover. Lot of bang-per-buck. Tuners claim it will hold 500 hp.,enough? In transverse, using electric h2o pump and dizzy not problem? "pm",. if you want. They "tolerate" a Vega here, but I'm not to sure about German?roverman.

Don't know if this helps but I'm using the MegaJolt with the Ford EDIS8. I did a similar thing to my spare dist. that Ian did. Here's a couple pix.




Then popped out the upper bushing and mounted in the stub with some hanging off to put a rubber hose cap on to contain the oil. I cut a couple spiral grooves in the shaft at the top where the bearing is to get oil up and back down:




Sorry I don't have a closer pic but for the trigger wheel I just machined the ID of the pot-metal one off the ford system and press fit it on the crank pulley. Worked great. I think the ID had to be something like 4.4". You can see it just ahead of the Buick 300 harmonic balancer. I'm planning on fabricating a mount for the pick up now using the fuel pump as a base. Covers the hole and makes a good place for the pick up mount.

That does it, a hacked up dizzy it is. Pity, cuz I just got done doing a complete overhaul on this one. Pics are very helpful Nix and Ian.

Art, the 3.5 is good for an easy 200hp, which is what I'm looking for in a daily driver. Besides it was sitting in my shop looking for a home.

Tom

Very nice headers, Nic. Did you make those?

Yes they are nice, Nic.. and why is your "ladder" wearing gloves??



Edited 1 time(s). Last edit at 01/10/2010 07:09PM by roverman.

Tom,
Some of the UK spec injection 3.5s were 191 brake from the factory, so with a good exhaust they should be ok for 200, this spec was found on the 3.5 Rover Vitesses twin plenum cars, Holomogation specials, I have seen one of the so called factory engine race blocks, and there is no comparison to the factory block, and the same engines had Hi spec rods but used the same factory part numbers, they eventually got caught when a scruteneer had a look down the oil filler cap and noticed the rocker arms had VOLVO written across the top

"Volvo"= oem. equip. on Huffaker GT 1 's. Real hard on V12 Jaguar titanium valves hiding in there ! Lash caps became rocking chairs.

Nick
What did you use for a VRS crankshaft position sensor. I went a bit cheap and bought a trigger wheel and sensor bracket from Trigger wheels in the UK thinking I could get the sensor here in the US. Parts place looks at me as if I am nuts. The only sensor I found will not fit the bracket. Any Ford or GM parts numbers I should use to get the right sensor? There is one including the wiring harness at the boostengineering site but no part number. Any ideas appreciated. It looks like few people in US use Megajolt but it looks like a good idea.
Dick Porter

After much internet search I think I answered my own question. The different Ford sensors are all the same to the Megajolt. Now I have to find one that fits my bracket or make a bracket of my own. Please let me know if I am wrong.

Tom, Too late for you to consider transverse ? No firewall issues. Toyota series II, MR 2 turbo Taxle ? Very sturdy units. roverman.