Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Causes?
03-14-2019, 09:37 AM
#1
Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Causes?
Hi to all
I would like your opinion about my problem..
i have a B16a darton sleeves 81mm 9.0:1
gt 3582 billet wheel 0.63 a/r
ramhorn
44mm
80mm exhaust
ferrea valvetrain
T1 trigger with stand alone ecu and k20 coils
id 1050
at 13 psi makes 450 hp and when we start go up at 20 psi makes 480 and at 25 psi 475...
for sure is not normal this....
intake temperature was 80 f.
engine is fresh and very healthy.
any idea what happens???
I would like your opinion about my problem..
i have a B16a darton sleeves 81mm 9.0:1
gt 3582 billet wheel 0.63 a/r
ramhorn
44mm
80mm exhaust
ferrea valvetrain
T1 trigger with stand alone ecu and k20 coils
id 1050
at 13 psi makes 450 hp and when we start go up at 20 psi makes 480 and at 25 psi 475...
for sure is not normal this....
intake temperature was 80 f.
engine is fresh and very healthy.
any idea what happens???
03-14-2019, 09:48 AM
#4
Honda-Tech Member
re: Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Causes?
If the motor is healthy then my first look would be the turbo not being up to par.
03-14-2019, 10:35 AM
#5
re: Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Causes?
Exactly. Just because the compressor wheel used is made of billet grade aluminum, doesn't mean it's going to perform well. You were better offf keeping the turbo stock, if it is truly a Garrett
03-14-2019, 10:55 AM
#6
Honda-Tech Member
re: Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Causes?
Did you test for air charge / exhaust leaks?
Its looks that the system uses much more power than its should to keep the asked boost target.
There a rare chance that you hook your wastegate vacccum line before the intercooler and the intercooler is getting maxed on flow/cfm
This way everything works great until you max the intercooler flow THEN it creates wall of restriction and you have like 35psi before the intercooler and 20 psi after it.
Are you sure the guy that did the turbo did a good job?
Its looks that the system uses much more power than its should to keep the asked boost target.
There a rare chance that you hook your wastegate vacccum line before the intercooler and the intercooler is getting maxed on flow/cfm
This way everything works great until you max the intercooler flow THEN it creates wall of restriction and you have like 35psi before the intercooler and 20 psi after it.
Are you sure the guy that did the turbo did a good job?
03-14-2019, 11:07 AM
#7
re: Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Causes?
Did you test for air charge / exhaust leaks?
Its looks that the system uses much more power than its should to keep the asked boost target.
There a rare chance that you hook your wastegate vacccum line before the intercooler and the intercooler is getting maxed on flow/cfm
This way everything works great until you max the intercooler flow THEN it creates wall of restriction and you have like 35psi before the intercooler and 20 psi after it.
Are you sure the guy that did the turbo did a good job?
Its looks that the system uses much more power than its should to keep the asked boost target.
There a rare chance that you hook your wastegate vacccum line before the intercooler and the intercooler is getting maxed on flow/cfm
This way everything works great until you max the intercooler flow THEN it creates wall of restriction and you have like 35psi before the intercooler and 20 psi after it.
Are you sure the guy that did the turbo did a good job?
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03-15-2019, 04:33 AM
#8
Honda-Tech Member
re: Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Causes?
what fuel are you using?
The fuel alone could be the entire cause of this
The fuel alone could be the entire cause of this
03-15-2019, 05:33 AM
#9
03-15-2019, 06:52 AM
#10
03-15-2019, 03:34 PM
#11
Honda-Tech Member
Re: B16 turbo low hp after boost
03-15-2019, 04:29 PM
#12
O.G. triple O.G.
Re: Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Cau
You nearly doubled the boost pressure and only gained 25HP? Something is definitely wrong...
03-16-2019, 12:39 AM
#13
Re: B16 turbo low hp after boost
the fuel is just perfect my friend for this set up until 600 hp at this dyno
03-16-2019, 04:39 AM
#15
Honda-Tech Member
Re: B16 turbo low hp after boost
100 RON is the same as 93 Ron+Mon/2 here in the states. And knock limit on our 93 occurs around 400hp-450hp on most hondas, some reach 475 and blow up soon thereafter
03-16-2019, 06:33 AM
#16
03-16-2019, 06:43 AM
#17
03-16-2019, 07:28 PM
#18
Honda-Tech Member
Re: B16 turbo low hp after boost
Yes, I am very aware of that. Which is why I'm glad you stated 100 Ron instead of just saying 100 octane.
Read what I said again:
The characteristics of USA 93 octane are the same as Europe's 100 octane, because they are exactly the same fuel. Meaning The same power figures apply to you. And is probably the reason you're not gaining any power as you raise the boost. To get over 450hp, you're going to need 105-110 Ron gas.
Read what I said again:
03-17-2019, 12:51 AM
#19
Re: B16 turbo low hp after boost
Yes, I am very aware of that. Which is why I'm glad you stated 100 Ron instead of just saying 100 octane.
Read what I said again:
The characteristics of USA 93 octane are the same as Europe's 100 octane, because they are exactly the same fuel. Meaning The same power figures apply to you. And is probably the reason you're not gaining any power as you raise the boost. To get over 450hp, you're going to need 105-110 Ron gas.
Read what I said again:
The characteristics of USA 93 octane are the same as Europe's 100 octane, because they are exactly the same fuel. Meaning The same power figures apply to you. And is probably the reason you're not gaining any power as you raise the boost. To get over 450hp, you're going to need 105-110 Ron gas.
with 100 octane you can go very far...I have many examples my friend sorry...
my last set up with gt 3076 was 530hp at 26 psi...
03-17-2019, 05:46 AM
#20
Re: B16 turbo low hp after boost
03-17-2019, 11:35 AM
#22
03-17-2019, 02:10 PM
#23
Honda-Tech Member
Re: Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Cau
Are you sure thats a .63 garrett housing? That behaviour is close to the back pressure
wall from a too small housing. I know tjere isnt a garrett .48 for the gt35 maybe something else?
Just saying.
wall from a too small housing. I know tjere isnt a garrett .48 for the gt35 maybe something else?
Just saying.
03-17-2019, 02:56 PM
#24
Re: Troubleshooting: B16 turbo has low boost pressure after installation & tuning.Cau
maybe this week I will have news...I will try some things about ic and after turbo.