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Anyone running carbs or throttle bodies?
- Thread starter Pat_986
- Start date
All you had to do was ask 
i can tell you about the different options for every engine and the performance effects.
There are a few combinations for each engine, but invariably the best solutions which give the best power cost the most.
Gains on a stock 1.8's arent great for the money, they dont top out at much more than 170-175bhp for several reasons, plus you have to get a custom rad to lower the upper height limit of the rad so you can run a decent filter/inlet tract lenth. Its a much much better modification to move to 2ltr power and run a few simple modifications for 180+bhp and alot more torque.
PM me for any information required.
i can tell you about the different options for every engine and the performance effects.
There are a few combinations for each engine, but invariably the best solutions which give the best power cost the most.
Gains on a stock 1.8's arent great for the money, they dont top out at much more than 170-175bhp for several reasons, plus you have to get a custom rad to lower the upper height limit of the rad so you can run a decent filter/inlet tract lenth. Its a much much better modification to move to 2ltr power and run a few simple modifications for 180+bhp and alot more torque.
PM me for any information required.
20VT Clio & 9-5 HOT
throttle bodies are better than carbs! more expensive, but better!
you will need cams, pulleys, headwork, few custom bits and bobs including inlet manifold, also may need injectors, hi comp pistons, steel crank etc, depending how far you want to go, as well as the TBies, management, rolling road time, labour!
gets pricey!
you will need cams, pulleys, headwork, few custom bits and bobs including inlet manifold, also may need injectors, hi comp pistons, steel crank etc, depending how far you want to go, as well as the TBies, management, rolling road time, labour!
gets pricey!
meggerman said:
On a 172 to run carbs you'll need a slightly inlet manifold to fit DCOE's, then you'll need AT LEAST a set of 45's which arent cheap new and not really available s/h as the factory has been on strike for a couple years and jsut started production again.
You will need to use the std ECU to control the ignition, or swap to an ignition only Omex setup etc.
You will need to change your fuel system to run a low pressure carb setup, as it stands you cannot run carbs on your fuel setup.
And lastly, once its all running, it'll be a poor quality drive at anything but 50-100% throttle as that is the compramise of carburetion, the fueling stages arent great at low air speeds.
£5k wont get you much in the way of a worthwhile turbo conversion, but it will get you a very nice NA engine.
I would jump straight to 2ltr first, and fettle with that, 1.8's are far too limited unless your prepared to re-engineer the engine at rather large cost.
I've got a few tricks up my sleeve so just PM me if interested.
I would jump straight to 2ltr first, and fettle with that, 1.8's are far too limited unless your prepared to re-engineer the engine at rather large cost.
I've got a few tricks up my sleeve so just PM me if interested.
MKIII 138
why hasnt anyone mentioned and i may add never do offer the option of supercharging ??? its cheaper than a TB or turbo conversion and can offer anthying from a simple 30bhp to 80bhp depending on how much you wanna spend, theres no lag either so it suits at least the 172/182 and their instant throttle response. it can be mapped to come on at any point of build up.
before people spout 6k for converision i may point to the Jackson superchargers being installed and running VERY nicely on Civc type R`s with around 260bhp and there mindblowing quick.. a guy ive met recently had looked into this in full and 3.5-3.8k was buying and fitting ! not bad at all.. probably wont happen on the clio though as its a silly engine.
be nice for angel works and GDI or someone to do a converstion
before people spout 6k for converision i may point to the Jackson superchargers being installed and running VERY nicely on Civc type R`s with around 260bhp and there mindblowing quick.. a guy ive met recently had looked into this in full and 3.5-3.8k was buying and fitting ! not bad at all.. probably wont happen on the clio though as its a silly engine.
be nice for angel works and GDI or someone to do a converstion
meggerman said:
I've looked into it comprehensively, and the option is always there for people, its not a problem to do, however its far from cheap.
Firstly Jackson Racing offer kits to solve every peice of the equation, they started and sole mainly in these kits, hence they have MASSIVE purchasing power when it comes to buying chargers, they can kick out tens to hundreds to kits worldwide a month, and economies of scale are much better.
The main problem they have solved is that the honda ECU has been cracked by a billion people and can be used basically as a standalone item so you can map it to any paremeter. The Renault siemens ecu has been cracked, but only a few people have access to the software, and can afford to pay for the licence to the software (only worth it if you kick out alot of chip's or kits etc). The problem we face is that the std ECU is not boost aware, so running boost through the ECU will simply lead to destruction as it cannot physically see the upper limites of manifold pressure beyond that you would see say in the netherlands which is slightly below sea level.
This mean for one off builds its easier to run a new ECU, which costs, and a charger new costs over £1000 depending what you go for. If you use a roots or lynsholm (positive displacement) then you dont have to run an intercooler, but you'll have to fabricate a manifold to adapt the charger outlet to the engine, and you'll need a new throttle body as its easier to run a cable throttle than try to map a FBW throttle body.
Jackson Racing are able to pump out hundreds of manifolds for their kits, which would be cast items, but setting up a casting takes thousands in making the mould and batch casting runs of say 30 minimum (foundaries dont want ot be bothered with small runs, setup time is too long).
If you can a centrifugal (turbo type) compressor, outlet temps are high (100c+), and you'll have to run an intercooler, which is additional cost, or water injection etc etc.
THen there is finding the space to drive the dam charrger (have a look and see if you can spot anywhere, not many people want to dump PAS/AC to have a charger.
Sorry for the rant, but there is super large amount of work and fabrication to do, so costs would be (for a system that is worth it at about 250-300bhp) nearing £8-10k
Cheap, i dont think so.
YOu could slap some half arsed system together running a 5th gen minicooper S charger, but then your limited to about 220bhp, and you still have to fiddle the ecu.
