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Old 10-03-2018, 06:19 AM   #1
Bom
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Default How much boost can I take?

Car is 940SE with 19T turbo+new exhaust+ipd cam. I run 10 lbs at the moment. Curious how much boost I can increase without tuning ECU.

Thanks
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Old 10-03-2018, 06:31 AM   #2
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Stock injectors?
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Old 10-03-2018, 07:01 AM   #3
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Turn it up until head gasket blows then turn it back one turn.
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Old 10-03-2018, 07:20 AM   #4
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Turn it up until head gasket blows then turn it back one turn.
This, upload pictures please.
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Old 10-03-2018, 07:30 AM   #5
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Turn it up until head gasket blows then turn it back one turn.
Unfortunately he will hit LH fuelcut before this happens. Probably at under 15psi.
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Old 10-03-2018, 10:14 AM   #6
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take all the boost. All of it.
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Old 10-03-2018, 10:14 AM   #7
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Turn it up until head gasket blows then turn it back one turn.
oooh and don't fix the gasket either, that's cheating
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Old 10-03-2018, 10:24 AM   #8
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Head gaskets work like a blow off valve.
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Old 10-03-2018, 11:26 AM   #9
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Do you have a wideband oxygen sensor?
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Old 10-03-2018, 11:29 AM   #10
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CNA stock support?
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Folks on here don't know a good deal when they see it.
how psi stock cna support?

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Old 10-03-2018, 12:44 PM   #11
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As much boost as you want.
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Old 10-03-2018, 01:39 PM   #12
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When you find the answer please report back.
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Old 10-03-2018, 02:37 PM   #13
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When you find the answer please report back.
*like*
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Old 10-03-2018, 02:38 PM   #14
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on 87 I crank it up to 17psi

on 91 i crank it up to 22psi
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Old 10-03-2018, 03:09 PM   #15
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28psi
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Old 10-03-2018, 03:16 PM   #16
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Turn it up till you hear bad noises, then turn down a tad till the bad noises go away. That, sir, is how many psi's you can have
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Old 10-03-2018, 03:20 PM   #17
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This thread is my second favorite right behind;

'Say does anybody happen to have a complete set of NOS 242 Turbo side trim just laying around that they aren't using and want to get rid of?'
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Old 10-03-2018, 07:21 PM   #18
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take all the boost. All of it.
Damn It. Beat me there.

No boost. No boost for you.
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Old 10-03-2018, 07:33 PM   #19
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Quote:
Originally Posted by Bom View Post
Car is 940SE with 19T turbo+new exhaust+ipd cam. I run 10 lbs at the moment. Curious how much boost I can increase without tuning ECU.

Thanks
assuming it is a healthy motor and all maintenance is up to date, blah blah... you'll need a set of "big green R" injectors and a 3" AMM at the very least. Then I wouldn't go past 18-20psi until you get some other proper supporting mods (IC, Wideband, etc) and I would also go full syth (fluid/filter/gasket) service in the transmission and perform the "accumulator mod!"
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Old 10-03-2018, 08:04 PM   #20
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Assuming you can get the butt plug in tight enough, I bet you're safe for a couple psi before it hurts.
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Old 10-03-2018, 08:22 PM   #21
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Ermmm...20 psi might not be so good with the stock IC...
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Old 10-04-2018, 09:39 AM   #22
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Injectors are stock. From what car is the big green R injector and 3”AMM?
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Old 10-04-2018, 09:49 AM   #23
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Quote:
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Injectors are stock. From what car is the big green R injector and 3”AMM?
http://forums.turbobricks.com/newthr...newthread&f=14
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Old 10-04-2018, 10:34 AM   #24
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Injectors are stock. From what car is the big green R injector and 3”AMM?
Please, for now, leave the boost alone.
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Old 10-11-2018, 11:26 PM   #25
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Please, for now, leave the boost alone.
Get out Vincent. This is how legends are born
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