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Discussion Starter · #1 ·
I just had the Ferrita 3" down pipe installed on the XC. <br>The XC only has ITG and RICA chip for performance upgrade so far. <p>However, after taking off the stock down pipe it looks like I may need new bigger injectors to help out with the lean running engine. <br>The stock ones are 310cc brown/orange injectors, should I go with 395cc or 465cc? <br>I don't want to sacrifice the good gas mileage I'm getting now too much, but at the same time I dont' want to blow up my engine. <p>I'm all ears to you experts. <p>Here are the photos, my stock one on the right and stock S60R on the left for comparison. <br><IMG SRC="http://img220.imageshack.us/img220/6632/img0076pc6.jpg" BORDER="0"><br><IMG SRC="http://img220.imageshack.us/img220/4662/img0078yo3.jpg" BORDER="0"><p>And a solo close up of my stock down pipe<br><IMG SRC="http://img66.imageshack.us/img66/8851/img0075gr7.jpg" BORDER="0">
 

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Re: Am I running too lean? (024tnfi)

I think the S60R downpipe is looking way to rich... no? <p>Keep us posted abouth that 19T <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0"> <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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Re: Am I running too lean? (BenES)

First let me say that I'm a newbie when it comes to modding <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">, but I think the S60R DP is normal, since 6 other DP from S60R, V70R, S60 T5 all have the same black deposit/look. Mine is the only white one. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0"> <p>Well, I had the S60R 465cc injectors put on last night; out of fear that my engine will suffer damage. <br>But the improvement over acceleration is simply amazing! Much smoother, linear boost and more power at low end/off the line. <br>And the thing I do not understand is now I'm getting about 9L/100km around city, vs before about 11L/100km? I've always thought that mods that improves performance will sacrifice fuel consumption?<p>But hey, I'm not comlaining. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">
 

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Re: Am I running too lean? (024tnfi)

I am also a newbie when it comes to modding...<p>What other mods to you have to do (on your ECU?) to make use of the larger injectors. Also how does Volvo calculates the fuel consumption, is it based on a separate flow meter, or based on the pulses sent to the injectors? If I understand correctly, larger injectors has lower duty cycle (smaller pulses), so this may explain the lower fuel consumption. You should check how many km per tank you get now.<p> <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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Discussion Starter · #5 ·
Re: Am I running too lean? (radioflyer)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>radioflyer</b> »</i></TD></TR><TR><TD CLASS="quote"><br>What other mods to you have to do (on your ECU?) to make use of the larger injectors. Also how does Volvo calculates the fuel consumption, is it based on a separate flow meter, or based on the pulses sent to the injectors? If I understand correctly, larger injectors has lower duty cycle (smaller pulses), so this may explain the lower fuel consumption. You should check how many km per tank you get now.<br> <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> </TD></TR></TABLE><p>RICA did the initial ECU upgrade from bone stock. No revision by RICA yet after the 465cc upgrade. I belive the pulses sent to injectors controls the flow. <p>Here's from yesterdays trip down south. simply amazing, 1280km/tank that's like 800 miles / tank. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <p><br><IMG SRC="http://img64.imageshack.us/img64/1338/dsc04992kc9.jpg" BORDER="0"><br><IMG SRC="http://img338.imageshack.us/img338/2405/dsc04997zm2.jpg" BORDER="0"><br><IMG SRC="http://img148.imageshack.us/img148/9113/dsc05000hw1.jpg" BORDER="0"><br><IMG SRC="http://img78.imageshack.us/img78/8218/dsc05008dj5.jpg" BORDER="0">
 

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Re: Am I running too lean? (024tnfi)

Hi 024tnfi,<p>I have just ordered green injectors too. (Have blue 395cc ones now)<br>Did you do anything else than just replacing these ? <br>I understand green are "high impedance" - but not sure if blue ones are also high impedance.
 

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Re: Am I running too lean? (phpedersen)

Just did some checking up on this. Seems all later V70/S60 are using high resistance injectors - so no problem.<p>However I dont think you should belive much in your computers milage calculations anymore.<p>All the best <br>Peter, Copenhagen
 

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Discussion Starter · #8 ·
Re: Am I running too lean? (phpedersen)

Hi Peter, <p>Can you tell me a bit more on your experience/review after the 465cc installed?<br>I'm still getting the same gas mileage, but performance is not as good as before, now it feels like a stock XC70. <br>I think I will have to get it RICA tuned for optimum performance. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0">
 

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Re: Am I running too lean? (024tnfi)

Sure I will keep you posted here in this thread.<p>I guess you are aware that because of the adaptive system (in the ECU) , the car will change in response the first 100-200km everytime you make a modification. Could be that you are now just back to where you started.<p>From what I read in many postings now - injectors are not "limiting components" when the only mods are ECU and downpipe/exhaust upgrades.
 
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