Guest escort_boy Posted October 5, 2005 Share Posted October 5, 2005 When running a turbo, when do you decide that you should run a wastegate? Quote Link to comment Share on other sites More sharing options...
davidian Posted October 5, 2005 Share Posted October 5, 2005 bwahah same time you decide to run a turbo timer, blow valve, cooler Quote Link to comment Share on other sites More sharing options...
RT Posted October 5, 2005 Share Posted October 5, 2005 when you decide to run a turbo!.. without a wastegate it can't limit boost so your engine will blowup! Quote Link to comment Share on other sites More sharing options...
Guest dreadedretard Posted October 5, 2005 Share Posted October 5, 2005 doesnt a wastegate make the bov more meaty? instead of pssh its a wwwwwphsssss Quote Link to comment Share on other sites More sharing options...
Gaz Posted October 5, 2005 Share Posted October 5, 2005 doesnt a wastegate make the bov more meaty? instead of pssh its a wwwwwphsssss nope its got its own pipe. And i think he means an external wastie. You run one when you are either running lots of boost and the standard wastegate isnt holding boost anymore. Or when you upgrade to a turbo with no internal gate.(usually bigg huffer) If you are going to run one for sound value get a 36 tiel Quote Link to comment Share on other sites More sharing options...
Guest escort_boy Posted October 5, 2005 Share Posted October 5, 2005 yea sorry meant external wastie Quote Link to comment Share on other sites More sharing options...
drftnmaz Posted October 5, 2005 Share Posted October 5, 2005 you run one when you get past the point of your factory internal gate being able to flow enought to stop boost creep and spikes... eg i need one on one of my cars cause it's set to 7psi but creeps to 13psi then it you keep your foot into it it will spike to 18ish... reasons for this are usally head porting and flowing, bigger turbo's, stupid boost taps etc.... Quote Link to comment Share on other sites More sharing options...
RT Posted October 5, 2005 Share Posted October 5, 2005 I'm pumping 20psi and still run an internal wastegate, but it spikes on 20 and drops back to 18, can't hold 20 for long. So I could do with an external wastegate... Quote Link to comment Share on other sites More sharing options...
drftnmaz Posted October 5, 2005 Share Posted October 5, 2005 but that 20 isn't all off the turbo tho is it? Quote Link to comment Share on other sites More sharing options...
RT Posted October 5, 2005 Share Posted October 5, 2005 eh? where else would the boost come from lol Quote Link to comment Share on other sites More sharing options...
Defcon Posted October 5, 2005 Share Posted October 5, 2005 An intercooler. Def' Quote Link to comment Share on other sites More sharing options...
SYKOV6 Posted October 5, 2005 Share Posted October 5, 2005 the intercooler doent make any boost the turbo makes the boost maybe ya wanna search for some basic turbo facts so ya know the way they work Quote Link to comment Share on other sites More sharing options...
Defcon Posted October 5, 2005 Share Posted October 5, 2005 Im sure you know the whole oxygen density idea SKO. So i doubt i need to explain it. Cold air=more oxygen dense= higher boost explained very roughly. Def' Quote Link to comment Share on other sites More sharing options...
SYKOV6 Posted October 5, 2005 Share Posted October 5, 2005 sounds right in theory BUT the guy at works RX3 actually lost 3lbs of boost but made more power by changing the cooler plumbing[slightly larger] i have heard that you can go too big and make it real laggy. Quote Link to comment Share on other sites More sharing options...
lowlancer Posted October 5, 2005 Share Posted October 5, 2005 That's right SYKO, but that's more to do with back pressure than anything Externals aren't just for Big turbos, if you have a small turbo running high boost, use one. It's all about pressure Quote Link to comment Share on other sites More sharing options...
Josh Posted October 5, 2005 Share Posted October 5, 2005 Big turbo/low boost = bigger wastegate Big turbo/high boost = smaller wastegate Small turbo/high boost = smaller wastegate small turbo/low boost = bigger wastegate That should pretty much answer it. Quote Link to comment Share on other sites More sharing options...
Defcon Posted October 5, 2005 Share Posted October 5, 2005 sounds right in theory BUT the guy at works RX3 actually lost 3lbs of boost but made more power by changing the cooler plumbing[slightly larger] i have heard that you can go too big and make it real laggy. Yeah i'd agree with that too. IF the cooler is too big, it can create a pressure drop that is more then the increase it causes from chilling the air. Or somthing like that, im no expert on boost. Def' Quote Link to comment Share on other sites More sharing options...
SYKOV6 Posted October 5, 2005 Share Posted October 5, 2005 nah me either. Ryan fro work has spent alot of time/money developing his rota and has learned alot along the way. it made 300kw @ wheels on 13 lbs boost [i have seen dyno readout] i went for a blast in it at the weekend all i can say is FUCK ive been in some pretty fast cars but this was scary if it doesnt run 10s id be very surprised. he reckons i should put a 20b bridgy in the corty Quote Link to comment Share on other sites More sharing options...
lowlancer Posted October 5, 2005 Share Posted October 5, 2005 Big turbo/low boost = bigger wastegateBig turbo/high boost = smaller wastegate Small turbo/high boost = smaller wastegate small turbo/low boost = bigger wastegate That should pretty much answer it. woops, that's what I meant:P Someone's been reading race tech NZPC! Quote Link to comment Share on other sites More sharing options...
zep Posted October 5, 2005 Share Posted October 5, 2005 So, with a T3 running between 12-20psi, Should I be running an external wastegate, and if so, what size? Quote Link to comment Share on other sites More sharing options...
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