Big Update Time
Ok I thought it was about time I let the squirrel out of the bag.
As everyone in class A seems to be doing lots of mods and chasing power I needed to decide what to do myself or I was just going to get left behind.
I really wanted to keep the engine standard like last year and continue my ethos of low cost enjoyable racing. But if I was going to be the only car in class A running a standard engine I don’t think it would have been enjoyable.
So I needed to think of a plan. Everyone else seemed to be going down the forged engine, cammed, itb’s route. This is really expensive and I just couldn’t justify the cost. Also if something goes wrong it would mean an expensive rebuild every time.
So I checked the regs and also put an email in to Steve to double check it was ok and in stepped this, a rotrex C30-94.
A low boost (very low boost actually) Rotrex supercharger conversion. This was a cheaper way to go for me than building a high spec forged engine. Also my whole philosophy behind it was I wanted to keep a standard engine. I know some people may say ooh running a standard engine with a charger is asking for trouble, and they may be right. But it’s a very low boost kit and if the engine does go pop I can just source a second-hand one for £200 and swap it over in a weekend!
Obviously I have renewed a few parts along the way as well.
New Renault tensioner. New water pump. Megane keywayed crank pulley. Megane injectors and plugs. New cambelt kit. New dephaser. New clutch. Gen90 ecu etc, etc.
And an updated fuel supply to cope with the extra demand.
I will list the full spec later on.
Finally a trip to Chris at EFI parts was in order to get the mapping sorted.
The result was 234bhp and 190lbft torque. I could have gone for more power, but I have used a very large pulley and a restrictor to keep the boost and power nice and low.
I don’t have any lightweight fibreglass panels, also the charger an associated intercooler/pipework add a bit of weight.
I also don't have the fancy roll center correction kit. But I am hoping this will be enough to a least make me competitive.
If it all holds together that is!