turbo kit?

[Jonnyp]

hi guys

I drive a P reg 1996 440 2.0l 8v injection, is there any easy tunning tips that will boost the performance abit?, iv done a general service and upgraded the plugs/leads/coil/fuel filter ect ect, iv even had a custom induction kit made and a custom exhaust, but it dosnt have seen to make it much faster, or do i need to start doing internal work on the engine?, does anyone know any good websites for 440 tunning? and parts?

is there a turbo kit for my model? was there one from standerd on another model that could fit on mine?

any help would be much appricated

thanks Jonny.

[GTMaster]

Hi,

There was a turbo version with the 1.7l engine, nearly the same as the 2.0l but the 2.0l has a different cylinderhead (larger stroke or bore as well, can't remember). These 1.7l turbos can be tuned with ECU tuning (don't know if its still available) and they are 120hp to begin with and can be taken up to around 170hp without a problem (so i've read). There might be a possibility in putting the same turbo setup onto the 2.0l engine as on the 1.7l engine but Renault tuning parts can be fitted to these engines (e.g. camshaft)as well. The 1.7l turbos did have different exhaust valves and had a stronger gearbox too.
It might be easier to do an 'NA tune' on it rather than putting a turbo onto it.
You might get more help from someone who has already done something similar as there are people on the 480 site that have fitted tuned ECUs (though i know that one day i'll want to tune a 400 series )

[Jonnyp]

Thanks for the reply GTmaster, i'll look into the 1.7 turbo converion to the 2.0l, any info i find out ill be sure to post it here, as im sure you want to know
thanks again

Jonny.

[B20F]

Putting a turbo on a 2.0i isn't a good idea. The compression ratio from a 2.0i is too high for a turbo. That isn't the only problem, you will need a different ecu and ignition/turbo ecu as well. Volvo experientated with a turbo version, but it would become to expensive. Much cheaper is to buy a complete 440/460/480 turbo engine or better a breaker so you can swap the hole lot, engine, ecu's and wiring.
You can tune the n/a 2.0i, but it won't be cheap!
I would prefer the following tuning order for a B20F:

Stage 1:
-K&N replacement filter + Cold air bigger intake.
-Turbo CSC sports exhaust system (or equivilant) optional I would remove the cat.

Stage 2:
-Bosch 4 bar fuel pressure regulator (for enrichment in open loop and better mixing
of the fuel)
-advanced Hall sensor for advanced ignition

Stage 3:
-gasflowing+porting of manifolds (intake and exhaust) and throttle body.
-portmatching of the manifolds
Optionally you could look for a nice 4-2-1 exhaust manifold.

Stage 4:
-gasflowing+porting of the cylinder head
-uprated camshaft (from Renault 2.0i 8v)
optionally a remapped ECU would be ideal, but expensive.

Stage 5:
-Forced induction or an engine swap (turbo or 16V)

Stage 2 till 4 could be in non nummerical (exp: first stage 4 and then 2) order,
but that's up to you.

[Jonnyp]

Thanks for the reply, ill take your word on it about the turbo conversion, maybe its better to n/a upgrade it, iv allready done the stage 1, but im gna look into the other options you have put down, also, i didnt know that the B20F uses renault 2.0l 8v cams?, is it just the cams i can use or is there more?

thanks Jonny.

[Clan]

I dont think Renault used the 2.0 litre version of this orginally 1721cc engine .. neither did renault use the turbo 1721 cc engine volvo developed both of these for their own use . In fact Renault used the volvo S40 2.0 engine for a while as they didnt have a 16v engine of their own ..