SC Power conversions

SC Power conversions

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Belle427

Original Poster:

8,969 posts

233 months

Friday 18th August 2017
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Ive read some threads regarding Turbocharging vs Supercharging and im none the wiser, there never seems to be an outcome!
Has anyone had the Sc power kit fitted and can give some feedback on it?
Im considering going from my Chim 400 to a 500 but my car is pretty much sorted, im happy with it, and it has a solid chassis.
The debate will rage on forever about buying a more powerful car but i may be back to square one and have to worry about the chassis amongst other things.
Im interested in the SC route as id like to up the power slightly but keep the driveability as it is, im not interested in huge gains and would be happy with around 300 Bhp.
I have a budget of roughly £5k to do the mods on mine or would have £15k to try to get a 500 which may not be enough.
This may seem like madness to some but im very happy with the car but would just like to wake it up a bit!
The 500 appeals but i understand it can be a rough drive at low speeds, most of my driving is on everyday roads.
Any feedback is much appreciated.

Belle427

Original Poster:

8,969 posts

233 months

Friday 18th August 2017
quotequote all
Supercharger kit with intercooler is £4500.
Just as a comparison
http://www.v8developments.co.uk/products/engines/l...

Now my head is spinning!
Thanks for all the input so far.

Belle427

Original Poster:

8,969 posts

233 months

Friday 18th August 2017
quotequote all
QBee said:
I come to South Wales regularly, normally in the daily driver. If we do decide to come in the TVR I will let you know, otherwise you will have to come to me.

If you can organise it, drive your own car, a turbo and an SC all in the same day, so as to make an informed comparison.

I am not interested in pushing you the turbo route - it suits my requirements and is mainly there to give me more torque and acceleration on track. It has nothing to do with road driving for me. It has to be your choice - it's your car and bank balance.

For the record, my turbo, installed by Eann Whalley, with variable wastegate and electronic boost control, oil cooler and intercooler, cost £3,700 ish. My Emerald ECU, including loom, wide band lambda, and Bosch Blue Knight injectors, fully mapped by Jools, cost around £3,000. Mine is a belt and braces installation, all done by experts, as I fully plan to track drive the car (next Wednesday!) and hence be generating lots of heat and up to 150 mph speeds.
Thanks for the offer.
My aim isnt outright horsepower, just to get to the 500 performance but with good low speed manners.I dont track the car at all.
My last car was a Cobra replica with 280 Bhp at the flywheel, i felt that this was just about right to enjoy and not get into too much trouble!

Belle427

Original Poster:

8,969 posts

233 months

Friday 18th August 2017
quotequote all
All good advice there, certainly a lot to think about.
I plan to do all the work myself and the reason an engine swap isnt that attractive is that i only have a single garage.

Belle427

Original Poster:

8,969 posts

233 months

Friday 18th August 2017
quotequote all
The most sensible approach would be the new 4.6 engine but are we Tvr owners sensible? laugh

Belle427

Original Poster:

8,969 posts

233 months

Friday 18th August 2017
quotequote all
Just to add the sc power conversion is also designed to run on the existing 14cux.

Belle427

Original Poster:

8,969 posts

233 months

Saturday 19th August 2017
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Engineer1949 said:
not sure where you are based but if its anywhere near basingstoke my son nick would be glad to give you a taste of 4.0ltr sc fun in the orange chim i built some four years ago it is now back to a very road focused machine and a joy to drive.


john
Im a bit too far away in South Wales but thanks for the offer.
Im leaning toward the SC route as id like to keep the exhaust note exactly as it is and i feel the 400 engine is well suited to the conversion and my driving style.
I see positives in all of the options available its just the FI route fascinates me the most!


Belle427

Original Poster:

8,969 posts

233 months

Saturday 19th August 2017
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nigegas said:
I'm based in Bristol so not to far from u if u want a drive out in my SC your more than
Welcome I think u will like it .
I'd love to take a look, are you around tomorrow or is that too soon?
Pm me if you prefer.

Belle427

Original Poster:

8,969 posts

233 months

Sunday 20th August 2017
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motul1974 said:
I've seen the Turbo Kit prices at on Eann Whalley site, but I can't seem to find a kit price for the SC conversions?? - I'm only curios, so don't wish to waste any of the suppliers times by contacting them, but I'm curious as to cost comparison.
For the 400 engine its £4500 for the complete kit including intercooler, its designed to run on the existing 14cux system.
Thats for a diy install.

Belle427

Original Poster:

8,969 posts

233 months

Sunday 20th August 2017
quotequote all
Both offer tremendous gains, the turbo route seems like a no brainier value wise but I'm not sure I'd like the muted exhaust and extra under bonnet heat.

Belle427

Original Poster:

8,969 posts

233 months

Monday 21st August 2017
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Is the mapping on these aftermarket systems a one time visit?
They look to be a minefield too, megasquirt, canems, emerald and omex to name a few.

Belle427

Original Poster:

8,969 posts

233 months

Wednesday 30th August 2017
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The MS2 looks good value too, I see V8 developments do a plug and play version almost. Seems to be a lot of online help for them too, I bet you could get a half decent map from someone to start you off.

Belle427

Original Poster:

8,969 posts

233 months

Friday 1st September 2017
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Engineer1949 said:
sorry for the slight hijack but i will be doing a sc blower job on a 4.0ltr starting next week we are intercooling but running the 14cux with the upgraded chip supplied from sc will have it on the rollers at emerald to check everything out so may be of interest to folk.


john
Be good to hear how it runs, be nice if you report back as it may sway my decision in its favour.

Belle427

Original Poster:

8,969 posts

233 months

Sunday 3rd September 2017
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macdeb said:
Ah, well, drove supercharged demonstrator Chimaera and honestly it did nothing for me. (I'm sure it suits some, just not me).
Drove Turbo, Phuck me, I'll have some of that!
SC, limited tuning wise (sure they are good for some)
TC, infinitely adjustable to suit your requirements.
really tried hard to stay off this topic
no vested interest here either
Out of interest what didnt do it for you?
Was it purely the lack of shove in the back and not enough grunt?

Belle427

Original Poster:

8,969 posts

233 months

Monday 4th September 2017
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coco79 said:
I would be interested to know what 'drive in drive out' costs are SC vs Turbo, if anyone could share?
Its £5500 for the turbo kit, im not sure on the s/c kit as i dont see anyone offering this service. Im guessing it would be more expensive though if you factor in labour and new engine management.



Belle427

Original Poster:

8,969 posts

233 months

Tuesday 5th September 2017
quotequote all
coco79 said:
I've been following this thread with interest, my head is telling me 'turbo' given the fact that there are well known specialists to supply and fit.. my concern is whether it would 'mute' the V8 growl. I can't seem to find any details of companies that supply and fit a supercharger..I have to say I quite like the supercharger sound though..

Edited by coco79 on Tuesday 5th September 11:04
Anyone handy with the spanners could fit the s/c kit, it's that straightforward.
It would benefit you if you had aftermarket engine management first but I'm told it will happily run on the existing set up.

Belle427

Original Poster:

8,969 posts

233 months

Wednesday 6th September 2017
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DonkeyApple said:
Very interesting thread.

I've spent the last few years pondering what to install in a '72 Rangie to give it the same overtaking ability as my previous 5.7 Overfinch.

The target is pretty much 330x330.

The costs seem to work out pretty much in the same ball park whether I go for the turbo, the SC Power or a 5L V8D. And they all have their merits.

I've discounted the LS route as I really wanted to keep a RV8 in the collection having always had at least one since I was 21. I just like the little old pushrod lumps.

In addition I have a criteria that is probably notably at odds to TVR requirements, I don't want the extra power below 2k rpm. I want the power for over taking but don't want to be running 10 mpg when just pottering. My Overfinch pottered around at 4.5mpg and while it was fun I see no upside in returning to that.

That ruled out traditional SC solutions and big CC NA. I was left with the turbo option but needing to have bespoke manifolds made. Then I read up about the Rotrex and decided that this would actually give me what I want.

It won't be a wear on the drivetrain in general use and will give a really good boost above 2k to about 5k (the car is an auto!). As such I don't have to worry about beefing up the drivetrain beyond high torque parts that are readily available. I've had a Disco diesel turbo radiator re-cored for better cooling so that gives the intercooler. I've refurbed a 4.0 and it's just in completely standard Rover form. Tuning is going to be via Mark Adams and an Omex piggyback as a cost effective way to get it up and running.
Sounds like a sensible plan if the engine is a fresh rebuild.
Im still 50/50 at the moment.
Just bolt on the s/c kit to a 79k mile engine or rebuild my own engine to 4.6 spec with change for nice heads, aftermarket management, and maybe even a suspension refresh if im careful.
5k is a lot to spend and id rather only do it once.

Belle427

Original Poster:

8,969 posts

233 months

Wednesday 6th September 2017
quotequote all
ChimpOnGas said:
I can't see how adding forced induction to a 79k mile RV8 engine is going to do anything other than put you on very borrowed time.

When things go bad you're going to be in for a engine rebuild, so that means spending £5 - £6k on the SC-Power kit just to bring you rapidly to the point of spending a similar sum on an engine rebuild, So unless you've got £12k in the kitty I'd be inclined to do the sensible thing and reverse the process, ie start with that nice 300hp V8 Developments 4.6 with decent heads.

Enjoy the 300hp V8D engine or perhaps a little less with a lower compression build designed specifically for your future plans to go forced induction, then when funds permit add some boost. The engine will be built for it and will still be nice and fresh, doing things this way ensures you'll enjoy unbroken service while spreading the costs.

Rather than boosting your way into unplanned spend that may well put you out of the game while you save up for that engine rebuild, you'll be starting the forced induction journey with the engine you'll inevitably need to build anyway.

Planning and common sense aren't as exciting as the prospect of adding forced induction to your well used lump and having a much faster TVR within weeks, but there's not a blower in the world I've ever seen improves engine longevity and when you add one to a higher mileage engine that was never designed for FI, well lets just say "Good Luck".

Im awaiting a reply from V8D regarding a drive in drive out 4.6 or 5.0 conversion.

Belle427

Original Poster:

8,969 posts

233 months

Wednesday 6th September 2017
quotequote all
Boosted LS1 said:
It is sensible to start with a good engine and so long as it's not worn it should be fine. Turbo boost won't cause an increase in mechanical risk unless you over rev. Boost is more about heat management and especially about detonation avoidance. If your engine's a 3.5 or a 3.9 then a switch to a later engine would be a benefit but only because the designs better and the pistons are stronger.

I'd compression test your engine and see if the readings are healthy.
I would hope a 79k mile engine would show very little signs of wear on the bottom end, especially if it's been well serviced with modern lubricants.
I know the cam could be a weak link but again if the engine sounds healthy and has good compression readings is there really much else you can do?

Belle427

Original Poster:

8,969 posts

233 months

Sunday 10th September 2017
quotequote all
If going the S/C route which would be the best cam kit to install with a top end refresh?
I was thinking of sticking to the standard Kent or going for the MC1 as the prices are very similar.