The V8 Owners Forum -

Hi All, Finally got round to getting my blower kit installation underway Got to wait for my new Radiator and to finish machining some custom pulleys but almost ready to start it for the first time :) I have had a custom ECU and AFM done by Mark Adams of Tornado systems where he has put a basic map o...

Original kit had a belt driving crank to waterpump to supercharger via a tensioner. Done a bit of measuring up and I think??? The pulley will clear all the V belts Might have to machine up a spacer to stand the supercharger nose pulley a little. Really don't want to swap the front cover as it will u...

Thanks, I think the whine will make me smile :) Supercharger is running poly V belt but am leaving the rest of my engine on std V belt. My little S2A is allready heavily modified. LT95 HD Gearbox, Stage one V8 Axles and big brakes... Might need to upgrade to discs but will see. This is my current se...

I dont really have any power goals. This is more of a can I put a Supercharger in my S2A Land Rover.... Its only because I stumbled on a complete kit that I thought why not. Suppose its more of a technical challenge for me rather then a max HP. Funny that the MAX flow and running the calc the other ...

Has anyone calculated boost pressure before? I have just done some sums and I think its about right. Based on the following: 3.9 V8 = 239 CFM Max RPM = 4750 Crank to Supercharger Pulley Ratio = 2.21 Super Charger is 1.16 LPR ___________________________________________________________________________...

Have looked into all types of aftermarket / updating my current 4CU system and in having a long chat with Mark Adams I am going to stick with the 4CU system for now. Marks has offered to make a 4CU ECU which is matched to a JAG AFM which will run on my current set up. I run a 3.9 V belt engine but t...

Here are some pics so far. Its actually a 4CU EFI System and the only part missing is the ECU.... So not sure what to do there, someone must have a old 4CU Adjustable ECU laying about somewhere which I could purchase????? Pulley wise... It has a 65mm pulley on the super charger. Not sure what sort o...

Hi All, Today I have finally ticked something off my bucket list and after years of searching have bought a complete opcon autorotor supercharger kit with everything needed to rebuild onto my 3.9 / 3.5 4CU EFI HYBRID setup. I believe it has come from a Range Rover and it is a proper engineered piece...

All, Thanks for the replys and sorry for the delay in responding (been away on holiday) There is defiantly oil over the dizzy drive... it was flooded in oil when removed so am 100% confident its not that. I would say that the oil pump is tighter then normal to spin and when the Dizzy is clamped in m...

All, I know I am resurrecting a old thread here but need some help as we are going through dizzys and cam gears weekly. Rover 3.5 EFI Low compression V8 completely standard. Was running really well. good oil pressure no noises what so ever. Few weeks back we changed the front timing cover due to a s...

Okay after another evening in the workshop I have found the fault. It was not leaking through the head joint so I took the head off and sure enough number 7 piston is melted. It took some looking to spot it from the crown but now its out it has burn both sets of compressing rings and taken out the o...

Thanks Dave.

Am going to investigate more tonight so will do a fluid test and see if it vanishes.

Bryan

Hi JP, The engine is in my comp motor so is often driven very hard. Not convinced this is a broken ring issues. I would have expected to see bore damage and or broken pieces I am going to repeat the compression and leak down test tomorrow with the valley off to see if I can identify head gasket or p...

Hi All, Thanks for all the comments. I have done some leak down testing today... here are the results With no rocker gear installed: 1 - 70% 2 - 70% 3 - 90% 4 - 70% 5 - 50% 6 - 70% 7 - 5% 8 - 55% With all the rocker gear installed but without shims / preload not set: 1 - 35% 2 - 15% 3 - 65% 4 - 40% ...

Hi Dave.

Thanks.. suggesting this is lifter preeload?

I know my heads have been heavily machined and I allready have shims under the pedstalls on the rockers.

Would a open valve give heavy breathing?

Thanks

Bryan