Setup:

B18C1- 81mm ~9.5:1cr
USDM P72 ECU
Hondata S300
Hondata Boost Control Solenoid
Hondata 4-bar MAP
RC 750cc Saturated
Walbro 255

Inline Pro Mani
T3/60-1 .63a/r
3" Turboback
Tial 38mm WG- 13psi Spring
New Autometer Digital Electronic Boost Gauge


Issue:
-Boost gauges read 13psi at full boost

-Hondata reads no more than 8psi


Reason why this is an issue:
-Trying to increase power levels of the car


Already Tried:
No boost controller- the Hondata controller was disconnected- no effect
Different Hondata 4-bar- Had another one around the shop, put it on- no effect


Thoughts? Car runs mint, seemingly no vacuum leaks, no stutters, car makes 8psi power levels...am I over looking a vacuum leak? Then why isn't the car stuttering or running poorly?


Modified by pwrofdrm at 4:56 PM 10/17/2008

 

I would go by the logs of what the ECU is telling you. Most of your aftermarket and even most stock Boost Gauges are off a decent amount compaired too what the ecu see's. I usually just use the gauge as a reference point. Then setup an appropriate boost cut. If your seeing say 10 psi. Then one time you get on it and your gauge is seeing 15psi. There is a def increase in boost. This doesnt necessarily mean the ecu is seeing 15psi. It might be reading 12 psi or 18 psi. Its all relative. As long as youre are within range of what the MAP sensor can read and the car is tuned you shouldnt have a problem.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboLSVtecTeg &raquo;</TD></TR><TR><TD CLASS="quote">I would go by the logs of what the ECU is telling you. Most of your aftermarket and even most stock Boost Gauges are off a decent amount compaired too what the ecu see's. I usually just use the gauge as a reference point. Then setup an appropriate boost cut. If your seeing say 10 psi. Then one time you get on it and your gauge is seeing 15psi. There is a def increase in boost. This doesnt necessarily mean the ecu is seeing 15psi. It might be reading 12 psi or 18 psi. Its all relative. As long as youre are within range of what the MAP sensor can read and the car is tuned you shouldnt have a problem.
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