Clio with Rotrex super charger

[1985michael182]

Does any one know of anyone running one?
I'm fancying charging mine and selling the Jenvey throttle bodies.
Cant find any build threads on here with a kit though

 

[Ol’ Tarby]

@Cub. Used to

 

[1985michael182]

Does he have a build thread?

 

[Cub.]

Does he have a build thread?

Yep;

Cub's Flamer - Supercharged, Cage etc

Had it about 8 months now, bought from JMS with a replacement engine and gearbox. I have a varied car background, from humble rover metro GTAs to a 911 C4S, but I wanted a 172 to be able to get my hands dirty(ish) and the plan is to make it a fast road / occassional trackday car and mod it...

cliosport.net

@Ricardos had one too.

 

[Ricardos]

My old one

Ricardos Petrol Blue Supercharged 182 Project

So this is a little background into how this project came about before I get into posting text and photo updates from now on. As some of you local to me know I owned Christopher's old Racing Blue 182 before the Petrol Blue 182. The reason I sold the RB isn't the greatest story and how the...

cliosport.net

 

[1985michael182]

Thanks guys

 

[1985michael182]

What's your thought on me building one? Are they worth the cost of parts? Any dramas with stuff needing to be uprated?

 

[R3k1355]

What with all the turbo kits floating around now it's probably not the cheapest option.

 

[1985michael182]

I was thinking its a lot easier regarding fitting. Intercooler, charger and a couple of pipes.
Turbos a big operation

 

[JamesBryan]

If i was to boost a Clio it would be the supercharger route.

Drive like N/A and there's far less heat issues to worry about.

 

[RSRowe]

how are there less heat issues? surely you'd be in exactly the same position having 8psi through a turbo or through a supercharger?

 

[JamesBryan]

how are there less heat issues? surely you'd be in exactly the same position having 8psi through a turbo or through a supercharger?

Turbo position is right next to the firewall which can melt things.

A supercharger isn't and it doesn't run off exhaust gases, so not much heat given off apart from the heat it generates internally.

 

[Darren S]

how are there less heat issues? surely you'd be in exactly the same position having 8psi through a turbo or through a supercharger?

More tolerant on the transmission as well with the power delivery being a lot more linear. Rather than having a dump of torque when the turbo spools up.

 

[RSRowe]

Turbo position is right next to the firewall which can melt things.

A supercharger isn't and it doesn't run off exhaust gases, so not much heat given off apart from the heat it generates internally.

granted, but as you say you're still generating the same amount of heat compressing the air in either system.

 

[1985michael182]

They are talking the hot side of the turbo, have you not seen videos with turbos glowing? Charger is only the cold side of a turbo but belt driven

 

[David172]

Well this has made me re-think my future plans for the clio. Hmmm

 

[1985michael182]

What did you have planned?

My thoughts are it's supposed to be a bolt on mod at 240bhp without changing any internals.
NA 240bhp would be a fully forged race engine that would need stripping and rebuilding once per year.

I'm currently at 200bhp and 170lbs with 48mm Jenvey bodies
Meg injectors
Group N timing
182 mani
Mapped at EFI

 

[green]

@RMDavis had an awesome super charged trophy. Think he still has a build thread. Spat flames out when on full chat!!

 

[David172]

What did you have planned?

My thoughts are it's supposed to be a bolt on mod at 240bhp without changing any internals.
NA 240bhp would be a fully forged race engine that would need stripping and rebuilding once per year.

I'm currently at 200bhp and 170lbs with 48mm Jenvey bodies
Meg injectors
Group N timing
182 mani
Mapped at EFI

Well I had pretty much decided on sticking with just a remap for this years track days and save up for a low boost turbo setup early next year all being well. Always assumed a turbo was the 'best' way to go as so few people went with supercharging.

 

[JamesBryan]

I think Craig's supercharged sunflower ph1 was 300bhp, rapid that thing!

 

[leeds2592]

@RMDavis had an awesome super charged trophy. Think he still has a build thread. Spat flames out when on full chat!!

Sounded mega as well!

 

[Cub.]

What do you use the Clio for?

 

[Sir_Dave]

Always assumed a turbo was the 'best' way to go as so few people went with supercharging.

People tend to go with turbo'ing as its cheaper.
The usual joke on CS is that people build turbo'd clios, then they spend more time being fixed than driven.
After a couple of years, the owner gets bored of fixing the POS constantly and sells up for 1/5 of the build cost.
Now, i havent owned a 1*2 for a couple of years, but that was the general consensus from about 2005 to 2018

A 1*2 is generally great fun because its a lightweight, N/A thrashbox. If you want a cheap turbo frenchie, just buy an R26.

 

[David172]

People tend to go with turbo'ing as its cheaper.
The usual joke on CS is that people build turbo'd clios, then they spend more time being fixed than driven.
After a couple of years, the owner gets bored of fixing the POS constantly and sells up for 1/5 of the build cost.
Now, i havent owned a 1*2 for a couple of years, but that was the general consensus from about 2005 to 2018

A 1*2 is generally great fun because its a lightweight, N/A thrashbox. If you want a cheap turbo frenchie, just buy an R26.

Are you saying that a SC would need less fixing over time than a turbo or are you just refering to clios in general?

I don't know about the OP but it's not my daily so reliability would be nice but not essential (or expected lol)

 

[Sir_Dave]

Are you saying that a SC would need less fixing over time than a turbo or are you just refering to clios in general?

I don't know about the OP but it's not my daily so reliability would be nice but not essential (or expected lol)

All the turbo ones just seem to break down a lot lol.
Plenty done over the years, so its not like its a case of 2 built, 1 broke, so OMG they must be unreliable. Its like 30 built, 30 broken down
@Cub. s/c was awesome. Cost more to build, but just worked. As i know from personal experience (highly strung 240bhp R53 Mini), there is nowt worse than having an epicly fast track car that breaks down at literally ever track day you do. On the flipside, my 185k mile Trophy (standard engine) never failed to finish a trackday, barring one where it failed to even start it ... the PMS aircon delete kit failed.

 

[cat171]

Yep, standard thing on here, generally it goes, turbo the car, moan about it when it f***s up (as you've taken it to Mr Bean for the conversion) let them f**k it up some more, get it back still fucked, sell it for parts.

 

[David172]

Well I'll defo look into supercharging as well then. Which ever way I go it will be taken to a decent garage, ED if it's turbo.

 

[1985michael182]

Track is what I use it for.
I'm at a stage now where to make more power I would need cams, high compression piston as a minimum. Then your into modifying the head, fancy valves , vernier pulleys. At the best parts of 4k for an engine that produces 240bhp and needs rebuilding every year.

Or chuck a charger on, keep it well serviced and hey Preston 240bhp!
Standard replacement engine 250quid if it pops. Or rebuild one with acl bearings, 197 pistons 197 cams and get a solid 250 bhp which will handle the power better. £500 engine

 

[Cub.]

In the situation you’re in, yes, it makes sense in terms of power gain to cost / hassle.

I found mine very reliable, great on track because of the power delivery being more “naturally aspirated” in its nature.

The only thing i’d recommend is a diff if you don’t have one. Otherwise you’ll just light up the inside wheel every time you try to put the extra power down and it will “scrabble about”.

 

[1985michael182]

This video says it all

 

[1985michael182]

In the situation you’re in, yes, it makes sense in terms of power gain to cost / hassle.

I found mine very reliable, great on track because of the power delivery being more “naturally aspirated” in its nature.

The only thing i’d recommend is a diff if you don’t have one. Otherwise you’ll just light up the inside wheel every time you try to put the extra power down and it will “scrabble about”.

Got it, gripper already in

 

[Cub.]

Got it, gripper already in

Same as what I had. In that case, it will make a noticeable difference when in. I found it gave the car the extra legs in straights, and the extra power coming out of the corners, which meant it more than punched above it’s weight on track against some very expensive machinery.

 

[Waitey]

Turbo or high end NA.

Supercharger doesn’t give the performance.

 

[1985michael182]

What boost where you running. What size pulley?

 

[Waitey]

What boost where you running. What size pulley?

It was Cubs old one with 240bhp from a Rotrex.

The rotrex seems to have all the down sides of a turbo with none of the peak power.

 

[1985michael182]

Turbo or high end NA.

Supercharger doesn’t give the performance.

So with NA the most air your vehicle can possible pull in is 2 litres. That's your lot which in my case gives me 200bhp at the flywheel. Running 8 psi on a charger you are adding another litre of air into your engine under boost. Technically producing a 3.0ltr engines power. We all know more air = more fuel = more power. I want more power but also reliability. Forged NA is just as unreliable and highly strung as a turbo. Turbos are 100% money pits, I've had them. My scooby spent more time in bits than it did on the road and that's supposed to be turboed.
Yes I agree you can get more power with a turbo but I'm not prepared to have the engine out after every track day fixing daft s**t.

 

[Waitey]

So with NA the most air your vehicle can possible pull in is 2 litres. That's your lot which in my case gives me 200bhp at the flywheel. Running 8 psi on a charger you are adding another litre of air into your engine under boost. Technically producing a 3.0ltr engines power. We all know more air = more fuel = more power. I want more power but also reliability. Forged NA is just as unreliable and highly strung as a turbo. Turbos are 100% money pits, I've had them. My scooby spent more time in bits than it did on the road and that's supposed to be turboed.
Yes I agree you can get more power with a turbo but I'm not prepared to have the engine out after every track day fixing daft s**t.

A turbo at 280 would be equally strung and far more entertaining to drive and quicker on track.

 

[Cub.]

I do agree with @Waitey that if it’s top end, out and out power you want, turbo may be the answer.

Problem is, it can get expensive and they aren’t very reliable.

I went supercharger because it suits my driving style better and i’m not a big fan of “drama” in terms of power delivery. I was also not chasing overall big power, more about giving it a bit more than it had.

It varies per person and wants to be honest.

 

[Waitey]

I do agree with @Waitey that if it’s top end, out and out power you want, turbo may be the answer.

Problem is, it can get expensive and they aren’t very reliable.

I went supercharger because it suits my driving style better and i’m not a big fan of “drama” in terms of power delivery. I was also not chasing overall big power, more about giving it a bit more than it had.

It varies per person and wants to be honest.

+1

My frustration came from the power delivery, low down it was like a restricted 2.0, high up it got going but always felt muted.

Plus on track (Blyton) I was consistently 2 seconds slower than my friends, standard bar a map, Meg 250. 2 seconds round Blyton is loads. So much so I made us swap over and I was 2.5 secs quicker in the Meg than him in the Clio.

Before going down any route you really need to think about the end game. As on track a 240bhp charged car won’t really have much over a 200ish N/A one bar on circuits like Donny.

 

[1985michael182]

@CUB I remember your flame now!!!!
You sold it for peanuts!! Immaculate it was!!