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Thats right! My car spiked at 21.7 psi on the dyno... Mind you Stock internals! Thats one thing I will never attempt AGAIN! It was fun to see though...

 
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Tuning on the dyno, or getting a HP reading? I'd want to see what the dyno says when that happens.

 
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:zbsflag: prove me wrong....

 
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So your telling me that you have no dyno plot or anything?

I need some proof here.

 
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:zbsflag:

 
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yeah we need some proof

 
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ummm nope. Lemme guess, stock head and studs right? (keep in mind the head blows off at 10psi) I dont even know if ARP studs can handle that boost, never mind your internals and whatnot. Also, what kind of turbo was it? Some don't even go that high

 
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im not supporting him, but the head wont blow off as soon as you hit 10 psi. it takes a little bit at 10 psi to blow it.

 
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Woh woh woh!!! Children children... calm down... For the unknowledgeable, Spiking and actually hitting 21.7 psi are 2 different things... I SPIKED 21.7psi on the dyno while tunning... for those who don't believe me, cry me a river... I'm just letting you know that my car was able to handle a 21.7 psi spike...

 
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I'm not an expert on the subject, so please explain me the difference...

 
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he could have some kind of a boost leak that is causing him to spike to 21.7 PSI just to acctually get the turbo to push 10 to the engine, but if that the case and your spiking to almost 22 PSI you should really fix that problem before you blow something up

 
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You mean, Blow something up again!? By the way, among the critics, how many of you actually know how a turbo works or own one? And how many of you know how a turbo works just because you read it in a magazine or saw the movie F&F? LOL

 
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i drive a AWD turbo DSM so i own and i know pretty good how one works

 
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lol yes, and i tune that machine with him every time there's an upgrade. a boost spike can be caused by a horrible boost leak. maybe he spiked at 21-22, but he could have a 12 psi leak. Are you internally gated? Also, are you using a manual or electronic boost contoller?

 
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SiGuy: I know how a turbo works. I have owned 4 turbokits for my 2 hondas, and i currently have a turbo'd 7th gen.

 
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Correct me if I'm wrong here, I'm curious to know more. If your car spiked to almost 22psi during a dyno run, horsepower should have spiked as well. What kind of horsepower "surge" did you see? Was it a fraction of a second surge or did it hold for a moment? In past posts you have stated how your car "knocks as it is" how did you have enough fuel to balance this kind of air pressure without severe detonation?

 
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:zbsflag:

 
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not that i am supporting his claim at all but it is possible for his boost to spike without his horsepower spiking as well if the boost is leaking elsewhere its never making it to the engine

 
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So then FC's shouldnt blow all the time when they spike on the stock wastegate. I know they get boost creep, but spiking is a major killer

 
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where's the reply on this? feel free to say you misread it, you won't be flamed for anything. i'd personally like to know whatr caused the spike so i could avoid it myself in the near future. thanks

 
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Yeah.. i was gonna ask the cause of it too.

 
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Well he has hit double digits already for dyno cuz he blew his head a couple weeks ago :devil:, He's planning to hit 18psi by the end of the summer if I'm not mistaken.

 
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Well... Here's the story... I have an saab turbo (can support 20 psi safetly) now... I have the Greddy profec E-01 boost controller teamed up with the Greddy e-manage... But for some reason there seems to be something wrong with the "Boost control" selonoid... Thus it wont regulate boost sometimes... Now, we werent trying to she how much the engine could take (Psi wise) before she blows... We just had her on the dyno and and the boost controller did not communicate with the wastegate for some reason... Thus how we had spike... No, the reading was not wrong because both the autometer boost gauge and the greddy showed 21psi... All i'm saying is that the engine held up after a big spike like that... Thats all...

 
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I hope that's rare. Because I'm buying the PRofec e-01.

 
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Yeah I planned on that system as well. Thanks for the reply, I had no idea it wasn't a civic lol. Hope all goes well.

 
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No... he is using the turbocharger from a Saab on his civic.

 
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^^^ Ding ding ding!!!

 
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lol
people blow stuff out of portions and so many people were quick to raise and use the B.S. icon
what external wastegate are you using
i heard that the delta's ( by turbonetics right??) alow boost spike some times and the hose blow of easy even with the proper clamp on

 
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I am using an ultragate by turbo XS... 35mm

 
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my friend has a second gen eclipse, he did a big 16g turbo on it, when he installed it his boost control wasn't working right, and his car would spike up to like 25psi. We fixed that quick, one of the hoses wasn't connected correctly.

its not to unrare for a turbo car to spike high, and its not like REDVIC was running the car at 21 psi it just hit it for a couple seconds. I don't see why people are calling BS.