Calling Unichip Users

[goku4658]

some pretty strong testimonials in favor of the unichip...very tempting

 

[BradC]

I concur, the Unichip is designed to have a transitory peak at approximately 13 PSI, and then roll off to 10 PSI. In my 5 months of experience with Unichip, I have only hit 13 PSI when my right foot is pinned to the floor, and then only in 3rd gear. Also, the peak boost happens so quickly that my eye often misses it. Luckily, my electronic boost gauge has a peak recall feature, which lets me recall the highest boost with the touch of a button. I find my eye and the peak recall do not necessarily coincide.

I too run map A with the boost switch ON. On a side note, I have found that I am averaging a little more than 28 mpg with this setting (in mixed driving), which is about 11.5 mpg better than I achieved running map A with the boost switch OFF. My theory is that with the boost switch ON, I do not plant my right foot to the floor as often as I do when it is OFF, resulting in less gasoline consumption per mile. With part throttle and the boost switch on, the car has ample thrust, more so than WOT with the boost switch OFF. Furthermore, I have never hit spark (or fuel) cut with the Unichip, but then I never did before the Unichip either.

The Unichip is the single best modification I have made to my car.

Have any 1/4 mile times or dynos before/after or at all? You list of mods looks nice, just wondering about what that translates to at the road.

 

[4001]

Sonic Racer ran a 13.9 with just an intake and an exhaust with the unichip on upped boost

 

[atticus1398]

just wondering here, but what about our stock injectors? i read threads w/ people stating that they are maxed around 10psi.

 

[Professor MSP]

Have any 1/4 mile times or dynos before/after or at all? You list of mods looks nice, just wondering about what that translates to at the road.

Brad, here you go http://www.msprotege.com/forum/showthread.php?t=100130&highlight=Unichip+Dynamometer. This thread reports on my trip to a local tuner. I have yet to run at the track with the elevated boost setting.

 

[4001]

just wondering here, but what about our stock injectors? i read threads w/ people stating that they are maxed around 10psi.

I think 10 PSI is on the fence you can get away with it but they are pretty much maxed out

 

[Professor MSP]

just wondering here, but what about our stock injectors? i read threads w/ people stating that they are maxed around 10psi.

I cannot comment directly on that, but if you examine my reported AFR's in the thread http://www.msprotege.com/forum/showthread.php?t=100130&highlight=Unichip+Dynamometer, you will see that they are seemingly in an ideal range, at least according to the local tuner and Tony at Unichip. This evidence suggests, that at least in my car, the injectors are working within their design limits. Also, don't forget that the peak boost of 13 PSI occurs only for a split second, and then only in the 40005000 RPM range, not at redline.

 

[UnNaturalinc]

I concur, the Unichip is designed to have a transitory peak at approximately 13 PSI, and then roll off to 10 PSI. In my 5 months of experience with Unichip, I have only hit 13 PSI when my right foot is pinned to the floor, and then only in 3rd gear. Also, the peak boost happens so quickly that my eye often misses it. Luckily, my electronic boost gauge has a peak recall feature, which lets me recall the highest boost with the touch of a button. I find my eye and the peak recall do not necessarily coincide.

I too run map A with the boost switch ON. On a side note, I have found that I am averaging a little more than 28 mpg with this setting (in mixed driving), which is about 11.5 mpg better than I achieved running map A with the boost switch OFF. My theory is that with the boost switch ON, I do not plant my right foot to the floor as often as I do when it is OFF, resulting in less gasoline consumption per mile. With part throttle and the boost switch on, the car has ample thrust, more so than WOT with the boost switch OFF. Furthermore, I have never hit spark (or fuel) cut with the Unichip, but then I never did before the Unichip either.

The Unichip is the single best modification I have made to my car.

You actually mean Unichip, right? haha... I have never seen anyone talk about it like that (that much support). Thank you for your post....

I keep forgetting to check my fuel economy again... (I dread finding out the amount I spend on fuel). On the original tune Unichip did, I gained around 5mpg. This was before they increased boost to the amount they did (it was only like 2psi over stock at that point).


Would you be interested in the other functions these systems can do, but are not currently offered? As I said before... .there's the possibility of converting to MAP sensor, dual stage rev limit, aux switch control....

 

[4001]

Ive got a question..I understand that the Unichip is designed with the 13 PSI transitory peak but why is it there and what if any benefits does it provide...if you send it back to get a different tune can it be removed ?

 

[UnNaturalinc]

Ive got a question..I understand that the Unichip is designed with the 13 PSI transitory peak but why is it there and what if any benefits does it provide...if you send it back to get a different tune can it be removed ?

You are asking the benefits of more boost?

more boost = more power

*it's 12 according to the information they gave me.

 

[4001]

I concur, the Unichip is designed to have a transitory peak at approximately 13 PSI, and then roll off to 10 PSI. In my 5 months of experience with Unichip, I have only hit 13 PSI when my right foot is pinned to the floor, and then only in 3rd gear. Also, the peak boost happens so quickly that my eye often misses it..

How would it make any serious difference in that scenario...

You are asking the benefits of more boost?

more boost = more power

*it's 12 according to the information they gave me.

not to mention transitory means short lived, so how can more boost for a relativley short amount of time make any difference in power...

 

[UnNaturalinc]

The boost increases to 12psi where it is safe to run that much. There is not enough fuel to run 12psi at all times. I don't have the exact graph break down of the map, but it was done like this to create power and doing so in a safe fashion..... All part of tuning.

 

[4001]

so 2-3 extra PSI for a few split seconds really makes a difference in power...Im not gonna say I know about tuning just didnt think that it would make such a difference that they thought it should be designed as such, thanks for the info

 

[BoOsTiN]

FBI14,
This email from Unichip should answer your question.

On Sat, 9 Oct 2004 10:45 am, Joshua Murray wrote:
>Hi Julio,
>The boost control can be modified by any authorized Unichip tuner. The
>midrange spike is a result of the small internal wastegate. We can tune it
>out but boost onset will be very soft and torque will suffer considerably.
>When increasing boost in the upper RPM range you will get high boost spikes
>in situations where you punch it at high RPMS. If you do a pull from idle up
>in say 3rd gear the boost is very stable but if you nail it at 5k RPM boost
>will overshoot by as much as 4-5 PSI. You can use an aftermarket controller
>like an AVC-R to do boost control. The only issue is you will hit the
>factory boost cut if you go much beyond our boost settings. The car really
>needs bigger fuel injectors or additional injectors to up the boost. Rob at
>Pineapple Racing is working on a Stg II kit for the MSP that will include
>injectors and make considerably more power. His phone number is
>503-546-8154. If you have any questions feel free to ask.
>

 

[UnNaturalinc]

so 2-3 extra PSI for a few split seconds really makes a difference in power...Im not gonna say I know about tuning just didnt think that it would make such a difference that they thought it should be designed as such, thanks for the info

Where did you get the split second number from?

I do not have a boost gauge myself, so I don't know how long it stays there for.



If you are questioning how Unichip did/does things, I'd suggest calling them direct to ask.....

 

[UnNaturalinc]

FBI14,
This email from Unichip should answer your question.

That information varies slightly from what they originally told me. I'm not sure who Joshua Murray is off the top of my head, I have not been out there in about 8 months or so. :-/


Rob and myself will hopefully have something shortly for bigger injectors. RC Engineering 440cc's are what we will be using.


Thanks for the info.

 

[4001]

Where did you get the split second number from?

.....

like I said Transitory means short and the way Professor MSP and others have described the peak it seems to be only for a few seconds.... Not actuall facts but its not like its holding 12-13PSI

 

[4001]

FBI14,
This email from Unichip should answer your question.

thanks that was some good info

 

[UnNaturalinc]

Not actuall facts but its not like its holding 12-13PSI

Based on what they told me, it should hold because it is not a spike. But the posted email directly from Unichip says otherwise....

As I said, what they told me varied from what was posted here today. I'd sure hate to be giving wrong information. Everything I've known about this product is based on first hand info and experience.

 

[atticus1398]

keep us updated on the injectors, Ben.