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ls vtec turbo lose power in 4rth gear

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Old 01-09-2013, 04:58 PM
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Default ls vtec turbo lose power in 4rth gear

my car is losing power when i shift to 4 gear but is for 1 second then
start to spin the tires again. It's like a instant drop of power, she is tuned and
nothing was touch. Maybe my intercooler is to small 28x7x2.5? The clutch is not sliping.

383whp@17psi
sc34
9.0:1 srp
gsr cams
650cc inj
28x7x2.5 ebay ???
Old 01-09-2013, 05:52 PM
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Default Re: ls vtec turbo lose power in 4rth gear

engine management? Had this problem
Old 01-09-2013, 07:38 PM
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Default Re: ls vtec turbo lose power in 4rth gear

Same thing happend to me today
I had a clamp loose on the charge pipe
Would build boost fine and hold it
Drop when I shifted and then build slowly for a second and then fast again
Check all the clamps out
Old 01-10-2013, 12:01 AM
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Default Re: ls vtec turbo lose power in 4rth gear

i use crome pro

V8 good advise i will check all the couplings and clamps.
Old 01-10-2013, 05:26 AM
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Default Re: ls vtec turbo lose power in 4rth gear

What map sensor?
Old 01-10-2013, 06:14 AM
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Default Re: ls vtec turbo lose power in 4rth gear

omni 3 bar
Old 01-10-2013, 06:46 AM
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Default Re: ls vtec turbo lose power in 4rth gear

You always go for the map sensor being bad.... that's not always the problem so shut the **** up
Old 01-10-2013, 12:28 PM
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Default Re: ls vtec turbo lose power in 4rth gear

reajust all the t-bolts and check the couplings all loock fine. Can't check the
car cause it's raining so heavy.
Old 03-23-2013, 01:29 PM
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Default Re: ls vtec turbo lose power in 4rth gear

hi guys, been a wile since the problem start but work and D.D. car issues have me busy.

the car still running strong the firts 3 gears but whit the same problem when
shift to 4th a little fall in power for a second and then hit again.

no boost leaks.

Last edited by carlos8; 07-09-2013 at 03:48 PM.
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