Your tires, WHP and boost

Chuck33079

Why is this not your most immediate concern, rather than your tires? More boost than expected is not necessarily a good thing.

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

Jinxx

...your spring pressure on the wastegates should be pretty close to your boost pressure if not you need to find out why ..could be vacuum line not connected right ..or could be have came off ..got cut ....and I would verify which spring in in the waste gates.....the traction isn’t really something “wrong” that needs to be fixed ..it’s a effect of having a boosted Z ...you just need to learn to use it ...but not knowing what boost you should be running and just running whatever it gets can cause that’s what it does to me is a much higher priority

6mt370

Who told you that the spring in the WG has to be close to what you're actually going to be putting out? I have had an 11psi spring on a single 44mm Tial WG in my Supra for years and on high boost it sees 30+psi. The car has never had any boost issues either. Boost control is absolutely perfect and has never over boosted once.

solidus

Sooooo I switched to the R888R last week. It's a 305/30 versus the 325 RE11 on my other rear wheels. Night and Day. The car was completely sketch at 12psi doing 3rd gear WOT logging on RE11's. To the point I could'nt actually look over at the AFR gauge to see if it was matched up with what ECUTEK was logging for AFRs. Got the tires on just in time for Seb to up the boost for MAP 2. Got the tires warmed up after a Cruise log then did an Area 51 set of 3rd gear WOT logs. I had watched a review of the Triple 8R on a 900rwhp Mustang where he did a third gear pull and dead hooked so I was confident. For my purposes I'm no convinced because I wotted it and it just went. No spin , just go. For giggles I pulled it in 2nd with the same result. I can't tell you how much power I'm making now, but it's a lot more than the 509 from before and alot more than the 10psi wastegate.
People talk about the longevity of the tire, or rain but seriously I have a spare set of 95% RE11's sitting on a spare set of Nismo wheels. Here's the video review I was watching. I felt it for myself.

https://youtu.be/piX4-AzxB2Q

Jinxx

Your waste gate spring pressure should be where the wastegate opens at without any boost controlling devices ... 11lbs spring should yield ~11lbs boost .. of course you can increase it with controllers .. point was that you should know what spring/boost you are running before adding controllers especially if you are over boosting .... I would never use a boost controller to fight a over boost condition .. I would swap springs to lower than desired set point add a controller to increase as desired