Another Unichip question

[ONRAILS]

What are the drawbacks to running the unichip without the ebc? I really don't need it. My car boosts at about 9.5psi (spring) very consistent, and the spike is minimal. All I want to do is get rid of the hesitation/bog that occurs when I'm at half throttle.

Thanks,
Dave

 

[geomatics_tech]

the only drawback I can think of is not utilizing the transitory spike that unichip has, its basically a controlled spike that tapers off but will give some nice mid range power.

But, I have the unichip and use the greddy ebc, so I dont think that is a big loss.

 

[kickerMSP]

Ahhh so i AM able to switch the MBC out for a EBC???

 

[ONRAILS]

Great... I would much rather keep my setup that I have now. I haven't gotten my unit yet, but is there anything that is attached to the main unit that I need to omit? I would like to mount the ecu reset switch and the map switch (in case I want to take the spring off in the winter).

 

[low_psi]

There aren't any drawbacks. You'll be running about the same boost level the tune it for. You just don't hook up the boost control module.

 

[ONRAILS]

Oh... also. Will it still need a vacuum source? Like the DSM AFC.

 

[geomatics_tech]

nope, no need for a vacuum source.

 

[ONRAILS]

Gonna install it this weekend, without the ebc. Hopefully I don't **** it up. My right foot will be the boost controller incase it wants to shoot above 12psi.

 

[ChopstickHero]

i ran it without the boost controller for a little while, it ran fine. alot nicer with the boost controller though.

 

[onequickmsp]

If you do install the boost controller and you have it off, wouldn't it just boost to 6 psi? If so, that might save you some gas on long drives.

 

[JDM Sam]

You'll be fine. We use a MAF system to meter airflow not a MAP. It will compensate for any +/- in airflow (boost)

 

[ONRAILS]

So I have another question. I read as many threads about the unichip as I could, but I'm still a little fuzzy about the maps. If I don't used the ebc, and I am boosting at 9-10psi, can I use Map A? From what I understand, Map B is for higher octane, and it adjusts the timing, right? So I really don't need it if I am mainly concerned with eliminating the hesitation?

 

[ChopstickHero]

So I have another question. I read as many threads about the unichip as I could, but I'm still a little fuzzy about the maps. If I don't used the ebc, and I am boosting at 9-10psi, can I use Map A? From what I understand, Map B is for higher octane, and it adjusts the timing, right? So I really don't need it if I am mainly concerned with eliminating the hesitation?

After I installed my Unichip boost controller, i found that my boost at LOW is about 9psi.... which is actually what I want it to run at. HIGH boost is higher, probably spiking to about 15psi. Obviously I don't want to run it that high, so I just leave mine on LOW boost setting. I also use Map A only because I am running 91 octane (in CA) gas. I runs strong and is quite fast. When I get my exhaust system on, I'm going to get a custom tune to see what's up with my boost. At stock boost I was doing about 5.5psi. It may be the boost solenoid or something else... not sure.

 

[ONRAILS]

Thanks for all your responses!

Hopefully I have time this weekend to install it! Shouldn't take that long.