jad
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Posts posted by jad
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And however cool that maybe... I hate saying it but you think maybe he has too much power? :-o Did you ask how much it cost? I have read topics with people saying you don't see much change from 12-15k. I reckon I could sc the rover for 2.5-3k.
Jad
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Good thing im not looking for over 10psi then :-) that should give more than enough extra go!
Jad
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Potato Potato?
There is enough heat under the bonnet without adding turbo/s! Also harder to add an intercooler on a supercharger like Chris'... -
Have read that. It would be nice if they went into more detail..... Obviously they talk about the m90. Now why would this especially give poor fuel distribution and weak mixtures? All the supercharger does is supply more air compressed, it doesnt control fuelling so my guess is they mean that because it is a bit small for the rover v8 (small outlet that doesnt cover the whole intake) that it ends up supplying more air to the cylinders it sits over? I also suspect that they mean that if you bolt on a supercharger and just let the standard ecu try to cope then you will get poor fuelling etc. Done correctly I wouldnt have thought it would be a problem.... Crosses fingers
It does say there was some well hidden wiring problems to try and stop the engine pinking. Strikes me as very poorly executed!Hopefully megasquirt, a centrifugal supercharge rand an intercooler should combat most if not all of the problems mentioned there! I would intend on having the knock sensors working for a start!
Jad
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Cruise? Dont do that it wont be any fun at all!
Any chance you have pictures of the build? Parts made/used etc Would be good to know what else you had to use to get it to work.
Enjoy your cruise! Get back soon
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Looks really good Chris
Being a challenge motor do you do many miles in it? Is it road legal?
Does the AFM tie into the megasquirt? Wondering if the uneven idle meant the supercharger is pushing a bit too much air into the engine at idle or something? or loading it up a little?
What do you have in the way of a wastegate/bypass valve?
Jad
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200 TDi is only .7bar anyway.....
0.82
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Such high psi of what? Afraid Im not interested in the yank motors. Im not saying they are not nice but I just dont want to get into another engine/gearbox conversion!
I have been looking around and have found the type of superchargers used by SC Power. Does anyone know the technicalities of sizing a supercharger? I would have thought it would be the C30-94 here. Any clever people think thats about right?
I mean im fairly certain that if I can buy the supercharger for ~£1800 then I could buy/fab the rest of the parts required for quite a lot less than the 2k extra being charged..... Making it a much better proposition than either the turbo or yank engine.
Jad
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Much more likely!
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My supercharged Rover V8 Challenge motor is awesome....
4 Litre Cross-bolted, Offenhouser manifold cut to accept the fabricated and welded aluminium adaptor to suit the Eaton short nosed titanium shafted M112, running at 6 bar boost, via Mega squirt, Transit Air Flow Meter, Ford Thunderbird throttle and then a nice tune on the rolling road.
Awesome as they say, sounds sexy, just a great conversion that actually sits in the valley using one 6 rib belt to drive everything including 2 120Amp alternators, a modified power steering pump to driver the hydro steer and a crank shaft driven 60cc hydraulic pump for the hydraulic winches, and to top it all off the charger sits lower than the standard Plenum chamber does, hows that.
See now that sounds great! (6 bar sounds a little on the high side though!) was it a hard conversion to perform?
Are you running megasquirt V1? I thought you didnt need an AFM with megasquirt???
How long have you been running it and have you had any problems?
Assuming you dont run an intercooler if its mounted straight to the manifold?
Unfortunately a centrifugal supercharger wouldnt have the same whine characteristics of a the roots type
Did you do a dyno run to see how much the engine was putting out?
Cheers Boothy
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Why is it so hard for some people to understand that I do not want to do an engine conversion? If I wanted to then I would have asked about doing one.
Wish I hadnt bothered asking now....
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You'll spend a lot of time & money effectively polishing a turd there - if you need more than a mild tune of the RV8 can give you're going to get far better value dropping in a lump that makes the ponies out of the box, something like a Chevy LS lump will double all the numbers an RV8 can manage without breaking a sweat, that's before you add any of the very cheap & available tuning bits. Just a new ECU with some nicer numbers in is cheap & easy.
Being a road car you could also look at less grunty lumps with bigger numbers, for turbo madness the jap stuff seems popular, effective & well catered for.
America, and I've no idea. Summit racing etc. will sell you a brand new crate engine in various states of tune, or you can trawl eBay / breakers for used stuff. I dare say US car mags would carry the odd advert for suitable suppliers.
How do you know I will get better value from a chevy/LS engine when you dont know what the going rate is?..... Not quite sure I understand that one!
Jad
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It would be cheaper but then you would have to keep buying nitrous which would be a pain. I also cant see many insurers happy with nitrous. Although the same probably goes for a SC conversion. The SC can also be removed from the car easily enough.
Jad
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Looking at that supercharger kit and John's dry sump I am not sure the 2 would be compatible. They look like they would come off the same mounting points and interfere with each other.
And yes I could buy an LS engine and then a gearbox and spend a HUGE amount of time modifying the chassis getting it working etc etc but I dont want another huge project.... Hence why I would like to keep the rover V8! So sssshhhhh
Jad
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price for the kit I linked to is 3.2k plus vat. So not exactly cheap. Dyno results here at the rear wheels. That I believe is for the standard kit without an intercooler. They estimate 310Hp 329lbft at the flywheel and you can get more with the intercooler (720+Vat). Turbo kit can be had for 2.7k plus vat which includes an intercooler and gives more power/torque than the SC kit although they are on a par when the SC is intercooled. I could just buy a cerb but I am one of those people that gets something and then just doesnt want to leave it as standard... sometimes I wish I didnt feel the need to tinker!
I plan when they start gritting the roads to inspect my camshaft to see how it is and replace if necessary (It is on 66k miles). If I were to aim at supercharging I would probably start off with a 4.6 rebuild it, put megasquirt on it and chuck it in the car and run it in first to make sure I dont have any issues. While doing this I might find I am happy with the performance of a good 4.6 and dont need the supercharger. But its hard to say at the moment.
Jad
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http://www.johnealesroverv8.co.uk/21.html
When did John Eales get a website? Have never come across it before...
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Mine is 45 when cold and I think when hot is normally 30 at idle and doesnt go above 40. I dont go above 2000rpm when below 70 degrees anyway so wouldnt be loading up a cold engine. I can get the oil pressure down to about 20-25psi after giving it a good flogging. Obviously the oil pressure may drop a bit with heat if the performance is increased. 100psi seems very high for a rover V8 are they not worried about blowing seals?
Its something I can look into but at the moment I think its a little more involved than I want to get. There isnt a huge amount of room in the engine bay either compared to a landy. The exhaust manifolds coming forwards see to that. I imagine any kits would be very expensive as well. (I know the SC isnt cheap...)
Jad
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Elbekko If you look at the link I posted to the kit above it uses a centrifugal supercharger so doesnt sit in the valley.
Jad
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Idris what kind of oil pressure would you think of increasing it to? What do you mean by pump up? Do you know of any off the shelf dry sump kits? I wouldnt fancy making my own for something so critical. Are the followers a bit more complicated than I gave them credit for?
Mark what are the differences in diameter like for thor and gems? would it make much difference for a boosted engine? Especially when you are already pushing air through a chargecooler or intercooler?
Cheers
Jad
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I would like the keep the car in a state where it can be returned to standard condition If I wanted to sell the vehicle without forced induction. I wouldnt want it to lose all value! I did consider a lexus lump as I am currently gaining experience on them but it is too wide for the chassis.
The turbo/Supercharge to me seems like a good solution as it is bolt on and can be reversed engineered. There is no need to change the gearbox or mess around with connecting different connections up or fabricating more parts to fit it. I am not looking for another massive project at the moment.
Jad
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My god man Japanese stuff in a TVR? Wash your mouth out!
Lots of people run forced induction in rover v8 TVR's. They have done plenty of miles and produce plenty of power. Obviously that doesnt mean its possible to screw it up however....
The problem with a lot of other engines like the chevy engines are they are too big to fit in the engine bay and therefore require chassis work. I dont want to get into that as otherwise I will have to take it all apart and galvanise the chassis after
Jad
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Afternoon
I recently bought a 4L TVR Chimaera and am finding it a bit slow.... I have been looking at ways to increase the performance and forced induction seems to be a fairly popular option in the TVR circles (as opposed to putting in a higher capacity rover V8) I have been informed that Boothy on here already runs a supercharged 3.9 so would be good to get your opinion if you wander into here
My plan would be to buy another engine to rebuild, top hat, and fill with things like ARP studs so I can keep the car on the road in the mean time with its current engine. The engines the SC conversions are normally put on are GEMs, cross bolted, so either 4 or 4.6L or the other variants of TVR rover v8 which arent necessarily cross bolted. I was looking at Thor versions as they appear to be quite a bit cheaper than the gems which I assume is because people are not as familiar with them? I am not sure however if the SC kit would be compatible with the thor top end? Obviously there would be some changes to hoses/air intake etc but essentially being the same engine I wouldnt have thought there would be too much difference? The engine would be megasquirted so the thor engine management system would be a problem. Does anyone see any problems with using a thor engine for this?
Does anyone know the compression ratio used on the 4/4.6 thor engines? A lower compression ratio engine would be more suitable.
This is an example of the SC kit.
Turbo charging is another option that is available. It is also cheaper and generally gives more power than supercharging. Two aspect that I dont like is that the turbo sits where the catalyst normal would, so MOT time can become a problem, a turbo obviously needs an oil feed which would I would see increase oil temps a good amount and lastly I think under bonnet temperatures would also be increased more than with a SC.
What are your thoughts?
Cheers
Jad
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What do I win? :-D
There is enough heat under the bonnet without adding turbo/s! Also harder to add an intercooler on a supercharger like Chris'...
Supercharged Rover V8
in Modified Vehicle Builds & Special Projects
Posted
I don't have that many good reasons... Lol the kit I was looking at is a centrifugal. I believe they are more efficient and it also allows for the fitment of an intercooler more easily. Allowing the engine to be less stressed or run higher boost.
Jad