k31th less WHY; more WOT Site Developer 29,032 Member For: 16y 8m 3d Gender: Male Location: Melbourne Posted 20/04/22 07:09 AM Share Posted 20/04/22 07:09 AM well, compared to a stock B-series/F6 turbo, a 6662 is ~5mm bigger on the compressor side only (and is the same mm's as a GTX3582R), so I'd say 1000rpm is quite a lot and you might have other issues causing it to spool so slowly... are you talking about "full boost" and what is your full boost level? If you're talking about "starting to spool" e.g. making half or more of your full boost level, then it may end up similar... turbo's don't generally stuff around once they've made half their boost to get to full boost levels haha Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,962 Member For: 9y 10m 13d Gender: Male Location: South Australia Posted 20/04/22 08:03 AM Share Posted 20/04/22 08:03 AM 1 hour ago, BJSXR6TMKII said: I'm running an aeroflow 6662 with all the other bolt on supporting mods, currently running 393rwkw but I find it quite laggy, it doesn't come on boost till around 3800rpm, my mate has the pulsar gtx3584 and really likes it, comes on about 1000rpm earlier, I've only been running the aeroflow for about 3000kms but I'm definitely not happy with it and will be changing it up as soon as funds are good enough to do so That will be because of not enough actuator preload or tune related. There are ways of checking it but it's not for the average person, so I'd recommend asking the tuner what's up with it. Your turbo should spool a few hundred rpm earlier than your mates. Link to comment Share on other sites More sharing options...
adams355 Member 529 Member For: 7y 7m 11d Gender: Male Location: Brisbane Posted 20/04/22 10:10 AM Share Posted 20/04/22 10:10 AM (edited) Who tuned it Edited 20/04/22 10:13 AM by adams355 Link to comment Share on other sites More sharing options...
BJSXR6TMKII Member 30 Member For: 4y 7m 26d Posted 26/04/22 12:47 PM Share Posted 26/04/22 12:47 PM This is a copy of my dyno printout, it was tuned by the boys at Platinum Tuning in southern Tasmania, they told me this is pretty normal for the aeroflow turbos and I'd get much better response from the pulsar Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,962 Member For: 9y 10m 13d Gender: Male Location: South Australia Posted 26/04/22 01:06 PM Share Posted 26/04/22 01:06 PM My 7675 aeroflow comes on quicker than that... Looks like the wg has 0 preload and is probably holding the gate open at all times. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,032 Member For: 16y 8m 3d Gender: Male Location: Melbourne Posted 26/04/22 01:08 PM Share Posted 26/04/22 01:08 PM yeah, that's not great for spool rate... very slow; should be at full boost close to 1500rpm earlier... but it's not solely the turbo's fault and if it is confirmed to be at fault you should get a warranty replacement turbo as that's just not up to spec for a 66mm turbo. Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,962 Member For: 9y 10m 13d Gender: Male Location: South Australia Posted 26/04/22 01:10 PM Share Posted 26/04/22 01:10 PM No need to replace the turbo, just adjust the preload...providing that is where the issue lies. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,032 Member For: 16y 8m 3d Gender: Male Location: Melbourne Posted 26/04/22 01:10 PM Share Posted 26/04/22 01:10 PM I only said to replace it if it's 100% confirmed to be at fault. otherwise there's something else mechanical causing the problem like puff says. 1 Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,962 Member For: 9y 10m 13d Gender: Male Location: South Australia Posted 26/04/22 01:17 PM Share Posted 26/04/22 01:17 PM Haha you know how well I read things these days Link to comment Share on other sites More sharing options...
BJSXR6TMKII Member 30 Member For: 4y 7m 26d Posted 27/04/22 01:34 AM Share Posted 27/04/22 01:34 AM The turbo was brand new and has only done 3000kms so I'd presume it's not the turbo, so now my dilemma is do I take it back to the same tuner and suggest they adjust the preloaded after they have already told me that's the best they can do with the 6662 or do I go elsewhere? Being in Tasmania I don't have a lot of option tuner wise Link to comment Share on other sites More sharing options...
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