rd170

Hello, I've been well and truly bitten and am now set on a throttle body after I've done the exhaust. Was gonna do bluefin too but seems remap is needed after throttle body anyway so no point bluefinning it.

My mechanical knowledge, lets assume is 0 on any scale. I can do nut and bolt changes etc.

The throttle body on pumaspeed is 67mm. The standard ST170 one is 66mm. Is 1mm really going to make that much difference or is there more to it.

http://www.pumaspeed.co.uk/product-F...y-67mm_453.jsp

Basically, has anyone got the above one, and are you happy with it. Also, was it really a 30 minute job?

Anything else need changing or is it a straight swap?

rd170

Anyone?

minder

hi mate
when i had my ST170 i fitted a GMF 67 mm throttle body with a full st/st cat bck exhaust system also had fitted a k&n typhoon kit with all that fitted i had 185 bhp well happy with that (ps just to let you know you cant remap the ST170s)

rd170

Thanks Minder, I've been using my google-fu but can't find GMF, do you have a link or place where you got it?

minder

sorry mate i ment cfm not gmf lol heres the link
http://focus.c-f-m.com/cfm67mmthrott...t170focus.aspx

rd170

Well, just spent Ł15ish on ebay for a standard throttle body, gonna give it some welly with sanding down the bump etc etc and see if it does make any difference. Figure worest case is I waste Ł15 ish.

Best case is I burn loads of calories sanding it down, and get a bit better response

ThePoons

Well how did you get on? Any difference

rd170

Take me a long while to get me arse in gear to do anything.... made a start and figured I'd do the before shots when I take the standard one off the car. Is slow going as I'm doing it by hand not wanting to poke holes where there shouldn't be any.

Still wondering whether of not to try the bluefin.... I know DS is better but it's more money than I can afford and I'm not planning on doing anything more than the throttle body and exhaust since induction kits don;t seem popular for st170s.

ThePoons

I see the blufin on eBay from demon tweaks sent them a email about power gains and if they come with more than one setting and I got the reply

One setting with a maximum power gain of 10bhp... For Ł200 pretty dear. Rather just cut the cat open smash all the insides out and weld it back up.

deanhanmore-st170

hello there, i got a bluefin for my st170 about a month ago now and im really happy with it!! mostly in 4th gear but can notice the gain in evry gear to be honest..... i did take it to be remaped but the bloke said some st170s with instal the remap and some will not..... mine is one of the ones that wouldnt exept it witch is why i turned to the bluefin! big thumbs up!.. can you post the results about the throtle body, might do the same :-D cheers

deanhanmore-st170

and take a pic after you'v sanded :-p

rd170

Seems bog all difference, I didn't do it fully flat as was worried about sanding a hole in the throttle body and I'm not messing about with liquid metal.

Got the bluefin today though, am happy with it, is sharper in every gear.