supercharging...easy or not?

[Mr Sam]

now to throw a spanner in the works




just get a nitrous kit

[andy_d]

Far less than the design spec's would say, due to the milage now on the engine, the normal wear and tear on the bits inside. Any tolerances only apply to a "brand new" engine. 100K+ miles and your looking at something completly different , qed the "you could sneak XX more" doesnt apply".

once you start , as its as an engine controlled by the ecu's , your going to need to change those, and then custom map to make "it" work
your then going to need custom exhaust ,
any blower is going to have to work with the VVT system on the inlet on these engines.
the T4's have the VVT on the exhaust side. im sure you could map it with a blower AND vvt, but as to who would have the knowhow and the cost of it,,,,,

once you change the ecu's for ign/fuel,, what do you do with the imobliser that is built into the factory ones?.

Everything is knock on once you start.
yes your gearbox May handle 20/30more bhp , but the £ expended to Get said 20/30bhp on our 1.8/122 engines will be insane compared to adding 50-60bhp onto t4.

£/bhp is where the crunch comes.

id Love a bit more bhp on mine, the auto box will handle up to 200 (as its the Same box in the t4's , with the last 2 ratio's changed) , but the £/bhp part really does not add up infavour of tuning. which is why i was gutted i spotted a S40 T4 Auto , in the same colour as mine for £1800. (which is Less than ive pourd into mine to get it up to scratch)

[tt82]

Again Andy, what if money wasnt an object. I know it would be uneconmical finacially but I'm more interested in the theory and the mechanics of what is possible and what isn't.

[andy_d]

short answer is "not much"

[Claymore]

fitting an SC should be easy enough if the car started with aircon (just put the SC were the AC pump was), something like an eaton m45 can be picked up of ebay for less than £200, fueling can be controled by a dastek unichip, again available on ebay for around £50, so as long as you know a tuner that can map a car with an unichip I see no problems, if your handy with the spanners it should be easyly done for less than £500, and as for milage, my T5 is on 220k with a turbo, supercharger and nitrous.

[FIREBOLT]

Originally Posted by Claymore

fitting an SC should be easy enough if the car started with aircon (just put the SC were the AC pump was), something like an eaton m45 can be picked up of ebay for less than £200, fueling can be controled by a dastek unichip, again available on ebay for around £50, so as long as you know a tuner that can map a car with an unichip I see no problems, if your handy with the spanners it should be easyly done for less than £500, and as for milage, my T5 is on 220k with a turbo, supercharger and nitrous.

You started with a turbocharged engine, try that on a 2.0 10v with 220k!

[Claymore]

Originally Posted by FIREBOLT

You started with a turbocharged engine, try that on a 2.0 10v!

I'v also put a supercharger on a NA fiat 20v, I don't think any NA will complain at 6psi boost

[RCSH]

Supercharging is an easier prospect than turbo's, they usually run their own oil instead of the engines own. They don't suffer lag like turbo's, and they can be fitted quite easily and cheaply for the type of power gains they give.

However, it's not a staight forward bolt on and away you go. The fueling of the car will have to be altered, this in itself can be a nightmare. How do you know the correct amount of fuel to put in for a certain rpm, load, throttle position to boost pressure? Yes there are specialists that can do it for you, but your talking money.
Fuel pump, will it give enough fuel flow with the increased demand?
Engine wear, do you really know how good a condition your engine is in?

Even then it can all go horribly wrong. I fitted a supercharger kit to a Dodge Viper a few years ago, it came with a box that altered the fuel map for the engine that had been developed by the manufacturer. It 'piggy backed' on to the origional ECU, however we found the car over fueled badly, to the extent it dumped unburnt fuel into the cats that ignited and burnt the cars outer sills. Cost the owner a lot of money to put right, a large chunk of which he got back from the kit manufacturer as he admitted it was his box at fault, and he had a new one out that stopped a lot of previous 'issues'.

If I was you, I'd just go buy something that you can get spares for off the shelf, that was produced by an origional manufacturer and you can get insured on easier. It will save you a lot of money and headaches in the long run.


Rob

[brodgar]

i want a v6 in the back of my heares

and a 6 in the front of my hearse


and both supercharged

[Anadinolin]

Originally Posted by Claymore

I'v also put a supercharger on a NA fiat 20v, I don't think any NA will complain at 6psi]

Now we are getting to the realms of what me and tt would like to know :-)

i wish to keep the car for small sentimental reasons, but would like performance upgrades that bolt on easy...i saw a supercharger online which is a set of fans on the air intake pipe with a cone filter type set-up...and does an extra 6 or so psi kill the engine sooner? I have AmD tuners down the road and the guys that map the F1 cars nearby too hehe