How much hp/torque do we gain? I tried checking their site but nothing about the crossfire.

ACE

 

The consevative gain is 15-20 hp.and same for torq.

 

Here is what I measure with a g-meter before and after the Upsolute mod:

 

A good 15 bhp, nice

 

yah its for sure around there!!! Most exciting part is that the new Eisenhaus exhaust I purchased will add the same amount!! I can't wait to feel the increase in power after that

Has anyone actually dyno'ed a chipped Xfire yet?

 

I'm hoping to get mine on the rolling road soon. Had an Evo VIII in front yesterday. He could not get away from me (and he was trying), which was very pleasing for me and frustrating for him. He seemed to be faster in the straight, but had real difficulty in coping with fast cornering.

Boy, am I a happy XF owner today :twisted:

 

It will be more but wont be antother 15 on top of the chip... do a dyno when your done maybe you will have a total of 25.

 

wow.... drunkiq ... did you not just see the posts above this... the chip gain is about 20 - 25.... the exhaust is guaranteed a 6.4% increase... thats near 11 - 16hp gain also.... so your trying to tell me it will be 25 total...

at the lowest 30hp ... most likely 35hp ... but possibly 40hp....

 

Yep, I read it all and I am still guessing 25 total gain... we will see when you stick it on the dyno..

-marc

 

If im wrong on this correct me...

but as you can see the chip really extends at 4 - 5 seconds into the movement... that makes sense because of the engine pushing the fuel timing harder... which shouldnt be done right at the 1 - 3 seconds after you slam the pedal... but with exhaust or an air intake such as Lord's... then the lower numbers would increase because of the dramatic difference in how air is begin a) sucked in... or b) pushed out... which would occur IMMEDIATELY after the gas is touched.... thats why someone can feel the difference in the K&N filters because of the immediate difference in air intake...

so the chip will be used for mid level gain... while a air intake and exhaust would be used for a over all gain.... meaning teaming these up together could result in a pretty big change over all....

 

it' all relative to where the changes in the torque curve happen from your mods - for every mod you may gain something but likely lose somthing somewhere else.

So you lose some here - add some there.. etc... some of it is counter intuituve and balances out and that is why you don't get the numbers to add up.

I and everyone else I know have yet to every see a bunch of 10-15 hp gain mods be put together and add up.

If you get a 25hp gain, by the math on our 3140 curb - you will decrease your 1/4 mile time by .5162 seconds which is pretty good.

-marc

 

I've seen this too many times, in modding most of my cars I've owned.

You cant GUARANTEE any power gains, as every car is different. My could make 215bhp on the RR, yet someone elses could make 220bhp as standard. The other person has an instant headstart.

I have seen that there is obviously a very restrictive market for the mods on the crossfire, so after speaking to my local dealer, they are happy to warranty my car with a new exhaust, new engine management/chip and a new air intake system.

The intake is not far off complete, just waiting on the final measurements, then all will be revealed. RR time is being sorted this weekend, for a base run as I have now done the 1000 miles run in on the car. The intake will then be fitted afew weeks later and another RR sorted for power gains. Then chipped, again another RR done, then a new exhaust system then another RR.

With highflow sports cats, and new rear section from them through to a new rear muffler I would expect to see 250bhp without too many problems.

Lets just wait and see until someones done it !

 

I understand the concept of gaining and lossing when it is relative... but when it is determined between the timing of the firing system.. and the exhaust flow... I dont see how it would conflict with each other... see what im trying to say?

I can understand that the gain of a filter might gain at some spots but lower at others... thats understandable... if you hook that up with a different intake it might even screw the whole gain completely... but how will the engine firing and then expelling the exhaust hurt the overall gain?

If one is producing more HP from one part... and the other from a completely different system ... I just dont see how it will hurt one side of it...

ECU = firing rate of how the gas is burnt correct? ... deals with the fuel management system... that would inturn expel more exhaust correct? if not ... and it expels the same... then the exhaust would work the full 6.4%... if the exhaust not dispels more the exhaust fumes after the ECU... the new exhaust would help it breathe even better! creating a better outcome... I just dont see how me adding the Eisenhaus exhaust which is proven to add that much HP ... these guys are just some AEM brand ****... they design manufacturing racing exhaust systems... for all different cars! Actually rather famous on Merc and Ferr.... I'm pretty sure they aren't going to lie with their result of 6.0% - 6.4% ... and I don't see how the ECU will degrade that exhaust one bit ...

 

I have just had an Upsolut chip installed & i am pleased with the power that i have gained there is a butterfly feeling in the belly now noticing the weel trying to spin more since the chip is is more responce faster revs

But just now i know its nothing todo with the chip but i did turn right not reallllly fast but a little fresh & now when i turn left i get this funny sound under the stering wheel sounds like a spring also like the plastic is beeing streched ect douse any of u experanced xfires driver know about this as i am HAPPY I HAVE MORE UMPH BUT SAD BECAUSE OF THE SOUND UNDER THE STRERING WHEEL ?WHEN TURNING LEFT MORE SOUNDS THEN TURNING RIGHT ? WOULD U ANY 1 KNOW PLEASE LET ME KNOW AS SOON WILL BE THE FIRST TIME ILL GO BACKTO CHRISLER SINCE I GOT IT

 

With UPSOLUTE chip, it has turned your Xfire into a quarter mile hauler; in other words, no more turning left or right. Let us know what your quarter mile times are now.

 

i am going to find out soon as soon as i do ill post it

 

no more turning left or righ because of a chip?

 

Ok, try this.

English car with right hand drive. The ECU is on the right as well as the steering column.

Perhaps during the removal and replacement of the ECU some of the heatshielding material or wire bundles got put out of place and they are interfering with the steering column.

In the US we won't see that problem as the column is on the left.

 

Besides Upsolute, some of you may wish to consider the RennTech ECU Performance Upgrade. It is more expensive but the original Mercedes chip in the Crossfire is overwritten, not replaced. The Renntech technician in the L. A. area was in computer contact with a technician at the MB factory in Germany during the upgrade on my Crossfire Roadster. Both used the actual MB software program that originally wrote on the ECU. The top speed limiter is also raised from 158 MPH to over 186 MPH. You can visit the Renntech website to see the various improvements they make in HP, Lbs.-Ft. Torque, etc. I especially like the smoother gear shifting it creates if you have an automatic transmission (100 RPM increase in first and second gears).
Renntech headquarters in Florida told me that you are not going to get an increase above 15 - 20 HP in a Standard or Limited Crossfire (NOT SRT-6) no matter what company's chip you use because MB sets the specs closer to the maximums now during production. They also told me that there are no detectable changes in smog control testing. The dealership will not notice any change so it doesn't affect any warranty. The only way to test for ECU modification is with a dynamometer.

 

If this is true, the chip mod is hardly worthwhile (5-10% h.p. increase) the effort and dollar cost.