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I´ am already a long way with this car. But still want to share the longlasting project.
This is my 84 xr4i started out as a 90´s riced out xr4i. Pearl paint flocks hoodscoops The plan was to make it a small driving project. Pretty much failed that!!!
Engine is changed. interior is changed, the chassis and suspension. pretty much everything.
Let pictures speak for themselves.
But first a small spec list:
engine:
3.1v6 (bronco2.9 crank and 96mm overbore
O ring sealed block
Polished heads
adjastable cam
EFI
Vems ECU
melling oil pump HV HP muffled straightpipe exhaust (still pretty loud)
Sprintex supercharger
2wd intercooler
airtec big radiator.
drivetrain.
3.64LSD
mt75
AP Racing clutch.
interrior: cosworth steering wheel recaro seats with custom xr4i print
Suspension and braking:
3door front hubs
adjustable TCA
gaz gold
wilwood braking valve
The thing went on the dyno and it made 310bhp and 476nm. But it has cooling problems. It runs hot when really pushing the pedal and also when stationairy. I am not quite sure how i can resolve this. It has an cosworth radiator from airtec. And that should be good for a big power cosworth, but it still isn't enough.
Also i tried to align the car but that was im[possible. Does the 3door cosworth has diffrent tie rods than a stock car? Also the adjustable TCA's from compbrake are totaly shite, Almost impossible to adjust under the car And they are also badly welded, They are so crooked that the wheelbase has more than one inch diffrence between left and right. and a whole lot of caster diffrence is the result of that.
So i am looking for a diffrent setup with more quality. Maybe with an bladed ARB and Compression struts but still affordable. Every suggestion is welcome!
Im in The netherlands. currently running 10.4psi on 9.4 compression. But i need to change the pulley´s as the ratio is too high. I think it will come down to 7 or 8 if i do so.
ay right i have the same set up waitn to go in my xr4i. i think mine is set to sprintex spec so around 0.8 or 0.9 psi it should run.. its a rare set up now to find
The thing went on the dyno and it made 310bhp and 476nm. But it has cooling problems. It runs hot when really pushing the pedal and also when stationairy. I am not quite sure how i can resolve this. It has an cosworth radiator from airtec. And that should be good for a big power cosworth, but it still isn't enough.
Also i tried to align the car but that was im[possible. Does the 3door cosworth has diffrent tie rods than a stock car? Also the adjustable TCA's from compbrake are totaly shite, Almost impossible to adjust under the car And they are also badly welded, They are so crooked that the wheelbase has more than one inch diffrence between left and right. and a whole lot of caster diffrence is the result of that.
So i am looking for a diffrent setup with more quality. Maybe with an bladed ARB and Compression struts but still affordable. Every suggestion is welcome!
[url]https://www.youtube.com/watch?v=aI5vW3MWVi0
For the cooling i would have thought the rad up to the job aswell. Is it the 50 or 60mm core version you have?
If 50 go for the 60. Also what sort of oil cooling does it run. If a modine perhaps go for a mocal air oil cooler to give the cooling system an easier time when stationary or slow moving. If your not already go with a good cosworth style double electric rad fan kit to stop it boiling over in traffic etc. I,m sure you have considered all this anyway, i don't know what else to suggest.
As for geometry good luck with it. Driving a car with poor geo is no fun. I,ve just sorted my old corvette out and the difference is huge, now its a joy to drive and i hope you find a good setup with yours.
Also it looks fabulous by the way, the charge piping and engine bay and whole car looks the part. Nice job.
The front end looks very busy. Is there clear air passage to the radiator? Can you use cowling and ducts to force air through the rad?
It looks and sounds great!
ay right i have the same set up waitn to go in my xr4i. i think mine is set to sprintex spec so around 0.8 or 0.9 psi it should run.. its a rare set up now to find
Yea the setup is extremely rare! That´s why i made new piping instead of cutting the old things up.
What ratio pulleys are you going to run then? also with intercooler?
@Mad Matt I have the 60 mm core. It doesn´t have oil cooling yet. First i want to have an temp and pressure sender in it to see how hot it actually gets. But i guess it needs one!
@jonfoc The top part has cowling to maximize air to the intercooler and to the rad. The bottem part still must be done but that will pretty tricky to make it look good with the rs500 bumper. Already bought the hood and rs500 bumper to max out the air going to air to the radiator and let the heat escape out the hood. And i was told that cowling only does work on low speeds if you drive 80mph it is pretty irrelevant as it it is pretty much up to the rad itself at that speed.
I was thinking to try a smaller pulley on the pump to have a little more flow through the engine to compensate the pump pushing hot coolant down. Maybe a 2 degree lower thermostat. Put in a second temperature sensor to measure the temp going into the engine so i can also measure what is the most effictive. The tempurature sensor is on the stock position but i made it into a hot spot because of the modifications which can give a bit of false reality... And also put in a electric pump the keep flow going if the engine is stalled.
If that all doesnt work i guess i need a dual rad setup as i don´t know anything else...
i have a ratio close to 2.74 which is too high it blows the oil out on 5200rpm 5cm by 13.7. it may vary a bit as the bottom pulley is almost impossible to meassure on the car. Got the kit with these pulley´s so i just tried them...
supercharged xr4i project
