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Low Compression Turbo Vs ITB'S



E

Ellzy

  Supercharged S2000
In the not so near future i might spend a bit more money on my 172. As i have been told its not worth doing much else to them unless you want 30+ BHP which will cost a fair bit. With the money this would cost i could easilly sell my car and buy something faster. Its just having a car that people underestimate so much beating expensive cars is way cooler :cool:!
I dont have enough to charge/proper turbo it however may consider the 2k+ upgrade of throttle bodies or a low compression turbo, does any one know which is better? price wise & performance wise?

thanks
 
S

stan*

  2005 Nissan Navara
If you havnt got the money to do it right, which @ 2k you havnt, then I'd rule turbocharging out.

Ktec have an ITB kit @ £2500 which retains original loom&sensors, this would be the best route for your budget.
 
K

kev182cup

  Astra SRI/ Hornet
Stevieh is selling his low comp turbo kit for a good price. Alot more potential to be had with the turbo, itbs arnt worth it IMO.
 
S

stan*

  2005 Nissan Navara
definately alot more potnetial with a turbo....if youve got the money.

With ITBS you'll typically see about 30bhp gain peak, and about the same through the midrange in torque.
The drive is totally transformed, instant throttle response, and more acceleration in every gear.

For the budget in place, its overall the best solution.
 
SteveS Cup

SteveS Cup

  Iceberg 172
How are ITBs not worth it!? It depends what you want!

IMO (after owning so many turbo cars) turbos are boring and not best suited for fwd. You get a huge surge of power low down which spins the fronts up.

Atleast itbs will keep the fun of the revvy engine. Stick a set of cams in it and I bet you'd have a much better car to drive than some cheap turbo bolted on.
 
Soulless

Soulless

  LY R26
I think people look at the bhp figure of ITB's and dont take into account the way they affect power across the range.

(also ITB's make the most win noise)
 
Barron

Barron

ClioSport Club Member
  Turbo S,Exige,R5,182
For track use i would much have ITB's

For road use i would rather have turbo.

Carl
 
D

DMS

  A thirsty 172
IMO you should go for the ITB's on that kind of budget. You'll get very good gains all over the rev range.
With the low pressure turbo, I can guarantee you'll get hooked on boost and end up wanting to spend even more getting a low comp, high boost, forged bottom end setup. More power, more torque, still an awesome noise, but expensive in comparison. Don't do this unless you can afford it, along with the 10mpg running costs when you're having fun ;)
 
Barron

Barron

ClioSport Club Member
  Turbo S,Exige,R5,182
Soulless said:
presumably itb's for track as of the power delivery?
Click to expand...

yeah i run an ITB clio for a track car and a Mk1 focus RS for road.

I find that turbo cars are abit to mental in terms of power delivery. With the ITB's you can feather the throttle much better, you know exactly how much power your going to get and its very progressive. In terms of the turbo, if you try to power round a corner, sometimes the kick from the turbo can catch you out and unsettle the car.

Carl
 
D

DMS

  A thirsty 172
Soulless said:
The ITB kit from KTEC @ 2,5k...
does anyone know what sort of mpg you get @ say 70mph motorway miles?
Click to expand...

Should easily get more than 30mpg. They don't use much more fuel when cruising IIRC, although someone who actually has ITB's might be able to give you a better answer.
 
Barron

Barron

ClioSport Club Member
  Turbo S,Exige,R5,182
MPG with ITB's depends on the map, on a good map you can achieve not much worse than standard. I dont believe people who say they can get better MPG.
 
W

Weeman

  E90
Low comp turbo is like having a diet coke, with your double whopper and fries.

There won't be any dodging handling with one as has been suggested, They are designed to run at lower pressure and be more user friendly. Big old fashioned dustbin lid 4 seconds to spool up turbos are where its at, although I imagine a clio engine head gasket would possibly turn into a processed cheese slice with one of those.


N/A FTFW, Induction noise is what separates the men from the boys.
 
Guppy

Guppy

  ITB'd 182...
Mines been nothing but problems tbh!

Not worth the cost imo. mine was around £3.5k and although it improved the way the car went the cost just wasnt justified for me.
 
Barron

Barron

ClioSport Club Member
  Turbo S,Exige,R5,182
Guppy said:
Mines been nothing but problems tbh!

Not worth the cost imo. mine was around £3.5k and although it improved the way the car went the cost just wasnt justified for me.
Click to expand...

:eek: problems? what problems you had? PM me if you want

Carl
 
W

Weeman

  E90
Good on you for admitting it. The money some people spend on making a cheap car go slightly faster astounds me. Buy a different car LOL
 
SteveS Cup

SteveS Cup

  Iceberg 172
They must feel very fragile when running massive amounts of boost... My polo felt like it was going to break everytime I floored it!
 
D

DMS

  A thirsty 172
Not really. Mine feels fine.
Then again, I've only ever owned cheap, poorly built cars so I haven't got anything to compare it to.
 
Englebert

Englebert

  Turbos.
Not being funny but ITBs don't make a car unreliable, it must have been installed badly.

Personally i would always take natural aspiration, for the throttle response alone, the great noise is an added bonus. I would also suggest it's less problematic as there isn't as much heat involved.
 
D

DMS

  A thirsty 172
Where does everyone get the impression that turbo's are problematic from? Is it because a few individuals have had issues in the past?
If they're installed properly, run in properly, mapped properly and maintained properly they're fine. Same goes for any car.
Mine's awesome fun to drive, doesn't suffer from turbo lag like everyone seems to think they do, it's reliable, it doesn't throw 300bhp at you all at once when mid corner, it doesn't eat gearboxes (at least not yet) and isn't even much worse on fuel unless flooring it everywhere.
As for heat, I've had the turbo and manifold glowing red before. Still not had an issue, although I do want to get it water cooled for extra peace of mind.
 
Last edited:
D

DMS

  A thirsty 172
Since October last year. It's covered just shy of 11,000 miles since without a hitch.
 
chrispy.clio

chrispy.clio

  TrackCar & F30 330d
Its sad that Guppy has had so many problems.

I bought my ITB's second hand and with Andy at K-tec mapping them i have not had any problems with them. (Apart from a little bit of dodgy wiring by me but thats all sorted now)

Total cost for me is:

ITB's including the OMEX ecu and every sensor and loom - £1600
Aero catches - £50
Remap - £350

So bang on £2000 and i get about 33-35mpg and thats with waisting a bit of fuel on the over run so it spits flames and pops and bangs (which is worth the £2000 alone)

The noise is epic as long as your exhaust isnt too loud
Power is very good and so smooth from so low down

I used to drive a new Focus ST before the Clio and the turbo was very good.

If i was you go for ITB's

Videos to help you decide

[youtube]WV3pgCu2Yqg[/youtube]


[youtube]Cka6w92iPJs[/youtube]
 
E

Ellzy

  Supercharged S2000
Thanks for all your comments guys, its a bit of a ticky one, i mean i love the sound of a good old turbo, and i will get hooked on the boost as i have never owd one!... its just there something about ITB's and how they sound which is pretty cool! i obviously would make a better decision going for a ride in both cars, so if theres any meets in Sussex any time soon let me know :)... I might also Venture up to the French car show!
Like i said, i could buy a faster car but its just not the same.

My other question would be, if i was to do one of these mods, would it be easy to sell after? or does it work out cheaper to put back to standard and break the parts.
 
cliobritt

cliobritt

  Jap Shed
I have been in a 172 on itbs with 210 bhp hit 100mph in under 12 secs.....

I compared that to M3's, scoobys and other fast stuff and it sold me....
 
J

Jamie

ClioSport Club Member
TheJesus has had it all. ITBs and now a supercharger. His engine has been driven hard on both. No problems. So unsure on reliability claims. Love the noise of ITBs but if I was spending that much I would just get another car.
 
john182rs

john182rs

  ITB BG 182
ITB's all the way, thats the route i might be following.

Chrispy.Clio - how secure are the bonnet catches with locks? would it take a simple stab a blade screw driver in to unlock?
 
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