Why is my boost ramping up so slow????
Why is my boost ramping up so slow????
This is pissing me off. Look at the boost vs. rpm. Its SSLLOOWW to ramp up. Never used to be like this. I put on a Halman. I have a 3" CAT, could it be pluged?? Maybe the turbo is dying. The aircleaner is clean. Honkin boost leak??? 
Code:
RPM MAP MAF TPS
psia Hz %
2440 -8.5 66 8
2447 -8.5 66 8
2450 -8.5 67 8
2427 -8.4 66 8
2190 -3 251 84
2204 -2.1 263 100
2252 -0.2 277 100
2337 0.7 289 100
2384 1 307 100
2465 1.4 322 100
2506 1.9 341 100
2575 2.2 365 100
2670 2.8 389 100
2736 3.3 411 100
2803 3.6 428 100
2881 4.2 469 100
2986 4.7 495 100
3075 5.4 531 100
3168 6.1 603 100
3242 6.9 614 100
3346 8 695 100
3486 9 783 100
3603 10.2 902 100
3732 11.6 1066 100
3889 13.7 1179 100
4065 16 1428 100
4246 18.4 1308 100
4444 20.3 1355 100
4616 21.4 1432 100
4768 21.7 1483 100
4938 21.9 1547 100
5128 21.9 1612 100
5282 21.9 1661 100
5446 21.6 1712 100
Last edited by rraulston; Aug 18, 2005 at 07:29 PM.
First check for boost leaks. Start at the air intake filter and go through all the hose clamps untill you reach the intake manifold. check all vacume lines as well. I hate boost leaks!!!! I've had the same problem and found a few loose clamps. I upgraded to better hose clamps from NAPA auto stores.
this datalog is without a boost controller. I mean the WG actuator is UNPLUGED. So the ramp up should be as fast as possible. Ime guestimating 3700 plus or minus 200 rpm for full boost. Ray
Did it start doing this as soon as you installed the Hallman or what? Do you have any logs you can compare it to before you did the boost controller? For a stock turbo the car is spooling really slow. It could be a boost leak or it even could be your turbo going out. Id start with a pressure check and see if you have any boost leaks.
Originally Posted by rraulston
this datalog is without a boost controller. I mean the WG actuator is UNPLUGED. So the ramp up should be as fast as possible. Ime guestimating 3700 plus or minus 200 rpm for full boost. Ray
How does the wastgate work??
The wastegate is right above the downpipe, and below the hotside right?
From the wastegate there is a arm that is connected to the wastegate actuator. The actuator has a vacume line running to the MBC.
Am i right so far?
I think my wastegate is open all the time. How do I fix it?
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