The Underdog

i have a cfm underdrive pulley on my track car. i removed aircon at the same time. the standard pulley weighed something around 1.5kg and cfm was 300grammes so big weight saving. it made a noticable difference to the revs speed up and the car felt quicker but i did remove ac too. there are supposed dangers with them as they remove the harmonic balancer which is built into a standard pulley. this can cause big end bearing wear or soming like that but i think some people agree with this and some dont. i dont care personally as i dont do many miles in track car and it take many thousands of miles to see any wear so ive read.

turbo-herman

ok so should be a good mod. i do 25.000 kms a year so the wear on the big end bearings should be noticeble then you recon?

The Underdog

i honestly have no idea. iv read everything i can find on the net about them and some speak bad of them but others say they have done 40k and had no bearing wear. iv not read any long term reviews on our car though so no idea how it would fair long term. for what you gain it may not be worth taking the risk so do your research first. the risk for me doesnt bother me. i bought it for £40 used on ebay and its the best £40 mod iv ever bought.

doctor stavros

Would you really do any kind of modification that would induce such wear? Surely that is the same as paying someone to smash a headlight with a baseball bat once a year, just for you to pay to have it replaced, before doing it again next year.........

Malfis

better upgrade to throttle bodies and programmable ecu.

bluntys1rsturbo

very nice motor really like the direction you have gone with it.

on the power front i think if your figures are accurate your making very good power for an st170 with the said mods.
as stated if your after a bit more go with the cam timing alteration and maybe look at the lightweight pulleys, also a lightened/balanced flywheel if funds would allow.

the only other things i could think of n/a tuning wise would be throttle bodies and headwork, im sure doing a vvt delete doesnt really gain anything worth bothering with

turbo-herman

Next year i need to change the timingbelt so more power updates will be going on then.

For now i've added two LED strips in the boot so ican actualy see something in the boot when it's dark outside.







Also took out some interiour panels to be wrapped.
Hopefully they will be back this week so i can show off the result.
Till then this is how i drive around





Soon to be continued......

turbo-herman

got back the panels from the wrapper today.
very pleased with the result:

PaulinhoT

Oh I like the carbon very nice and well done.

turbo-herman

Thnx me too. i will do some more i think.

Today i changed the waterpump becouse it was leaking.

Also put the winterwheels on.

turbo-herman

wauw itreally hasbeen a long time since a last posted some update's.
So here it is:

After carbon wrapping some interiour bits i had also had the wingmirror caps wrapped:




then it was MOT time.
sadly it failed becouse of this:


luckely they had them in stock so up the ramp it goes.
I had to go backwards becouse of the lowering


after an hour of struggeling, the new bush was in:

turbo-herman

i had the RS wheels painted. the coating was still good but was not to pleased with the finnish of the coating so they went to the painter.
Now the finnish is just lovely and they awe much more whiter then they where:









Ordered some alcantara leather gaitors off ebay:


Also ordered some stuff at CFM performance:


* 67mm throttlebody and gasket
* CFM shortshift kit
* MSD coil
* CFM blue lead's
* CFM adjustible camgear for the exhaust cam and arp bolt
* rockercover gasket
* gearknob
* dipstick + tube

First i swapped the shifter:














Then the MSD coil and lead's:




Followed by the throttle body:








And last the dipstick and tube:




The camgear i will do in a few weeks becouse then i will also change the timingbelt.

turbo-herman

Last week i cleaned the air filter.
it has done 1 year and was ectually not to bad but could be better:












It now sucks like a motherf#cker with a clean filter on the 67mm tb.
When i start the car, it even wistles

turbo-herman

I also replaced all the interiour controll light's from green to blue:

Freeked

Subscribed!

Do you consider any mechanical work on the engine? I.e. port and polish the head or even some better pistons with increased CR?

PaulinhoT

Some great looking updates, can I ask you a quick question about the CFM throttle body, as that was going to be my next purchase for mine.

Basically I email Pumaspeed around 2 weeks ago asking about the CFM Throttle body, on there website it's listed as a straight swap, but on the CFM website it says you have to fit a hose adapter as it's a larger diameter ?

Is that the case ? as I have just fitted a nice blue hose on mine, and didn't want to have to change it already.

turbo-herman

if your using the OEM hose, i don't think it will fit and you do need the adapter.
I allready had the samco hoses on and that will fit.
It's a bit of a struggle to get the hose on the TB but it does fit.
At least mine does

Youd best be buying it at CFM becouse it is cheaper for the same TB.

I'm not dooing any engine work on the ST.
Hopefully this saterday i will fit the adjustible camgear and that will be the last power upgrade for the ST.

PaulinhoT

Thanks for the information, and yes I already have the Samco hose fitted

Cheers again

XR2

Nice car!



These are centre caps of early RS 7-spoke wheels. But the wheels???

turbo-herman

Right, time to blow off some dust again.

The front bumper and hood where full off stone chips and a few weeks back someone slightly hit my front bumper so the paint was now full of cracks.
A good excuse to send it to the painter but since it had to be all painted anyway, i thought i'll give it a go on putting in some vent's in the hood.

After some thinking i was going for the vent's off a Fiesta rs turbo.

The painter it was going to had a hood lying around wich i picked up and then it was time to perpare it.

I will let the pick's do the talking:



























With the hood all prepared it was time to bring the ST to the painter but first some before pick's:
























Very pleased with the result.
More updates soon

DavebST170

that looks awesome. top job!!

the wheels really suit the car!!

Farmer Giles

looks great..

anything you can do to tone down the headlights without resorting to the standard black (non xenon) ST170 version ?

they are just a bit 'in your face' if you know what I mean with the colour coding you've just done..

IMO of course..

The Underdog

i really like them vents. bad day for the golf driver though!