Gregsyb 4 Posted January 5, 2013 Report Share Posted January 5, 2013 Looking to gain some knowledge on Wastegate's, I think i'm going to purchase this http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=370635863109&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en wastegate for my turbo set up.Are the spring's pretty universal? ie fit different wastegate's?Also, am i right in thinking that if i buy an 18psi spring, i will then be running 18psi through the turbo and if i want to up this, i will have to change the spring?Thanks all!G Link to post Share on other sites
Gregsyb 4 Posted January 6, 2013 Author Report Share Posted January 6, 2013 Anyone?Usually plenty of knowledge on here Link to post Share on other sites
michael5556 247 Posted January 6, 2013 Report Share Posted January 6, 2013 Not all wastegate springs are same. You will have to get them for your wastegate. Your link doesn't work for the wastegate. You should get around 18 if that's the spring your going for, but it all depends on a number of things. Let me dig out this link for you. Link to post Share on other sites
michael5556 247 Posted January 6, 2013 Report Share Posted January 6, 2013 http://www.sr20-forum.com/information-library/16477-basics-boost-control-wastegates-how-turn-up-boost.html Link to post Share on other sites
Gregsyb 4 Posted January 6, 2013 Author Report Share Posted January 6, 2013 I have had a read through the link and think i understand a bit more, thanks! If i buy a wastegate for the time being ie. http://www.ebay.co.uk/itm/370635863109?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649this one at the bottom end of the price scale with a 17.4 psi spring. Does this mean boost will build up to and slightly over 17.4 psi and then stop building?Edit: Providing the other parts are up to it Link to post Share on other sites
michael5556 247 Posted January 6, 2013 Report Share Posted January 6, 2013 basically. Unless you put in a boost controller or something. That's what they call making full boost, when your wastegate spring is full open. It opens slightly then opens more as the revs increase. Link to post Share on other sites
Gregsyb 4 Posted January 7, 2013 Author Report Share Posted January 7, 2013 Much appreciated, Sorted thanks! Link to post Share on other sites
FishWick 21 Posted January 11, 2013 Report Share Posted January 11, 2013 18psi is quite a hefty spring. You might get better results using an 8psi spring with a boost controller. Boost controllers can keep the valve closed right until the target pressure is required. Relying on just the spring can have patchy results and you'll probably get a nice spike to 20-22psi before it settles to 16-18psi. BCs are also good at controlling spikes for a smoother power delivery.I wouldn't expect a 60 quid chinese WG to last very long tbh. I know TIALs and Turbosmarts are expensive, but in my experience they are worth paying for the rock solid reliability and performance they give. Link to post Share on other sites
michael5556 247 Posted January 11, 2013 Report Share Posted January 11, 2013 Just out of interest, what boost controller are you using kev? Manual or electronic. I still on manual but considering electronic. Link to post Share on other sites
Gregsyb 4 Posted January 13, 2013 Author Report Share Posted January 13, 2013 Thank you Fishwick for the information, I will definitely have a look into it! Link to post Share on other sites
Recommended Posts