Tightmopedman9 Posted February 2, 2013 Author Report Share Posted February 2, 2013 It is one of their actuators with a removable spring. Not a sealed unit. I'll check the RPM signal with a multimeter. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 3, 2013 Report Share Posted February 3, 2013 test light is easier - it's gonna pulse. Multimeter is for steady voltage signal, not what you're gonna see. Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted February 4, 2013 Author Report Share Posted February 4, 2013 Today I drove from Silverton to Durango, a 48 mile trip over two passes with 8447' of elevation gain and 11155' of elevation loss. Gas mileage from the dash computer was 34.3! I guess having .2L and higher compression makes a decent difference. Granted it's 2700' of elevation loss, but still a pretty darn good mileage. Quote Link to comment Share on other sites More sharing options...
magicaljake Posted February 4, 2013 Report Share Posted February 4, 2013 Today I drove from Silverton to Durango, a 48 mile trip over two passes with 8447' of elevation gain and 11155' of elevation loss. Gas mileage from the dash computer was 34.3! I guess having .2L and higher compression makes a decent difference. Granted it's 2700' of elevation loss, but still a pretty darn good mileage. when i had a 04 2.5t motor swaped into my 98 t5m with a HRC 20g i was seeing ridiculous mpgs as well on the computer. Quote Link to comment Share on other sites More sharing options...
NM Evan Posted February 4, 2013 Report Share Posted February 4, 2013 Today I drove from Silverton to Durango, a 48 mile trip over two passes with 8447' of elevation gain and 11155' of elevation loss. Gas mileage from the dash computer was 34.3! I guess having .2L and higher compression makes a decent difference. Granted it's 2700' of elevation loss, but still a pretty darn good mileage. on another note, how were those freshies? Silverton is legit Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 4, 2013 Report Share Posted February 4, 2013 Mpg is based on stock flow/ duty cycle - if you're running anything other than stock injectors, the MPG will be off. Which is not to say one cannot realize mpg gains with a performance setup ( and manual trans) but not likely as optimistic as shown. Go by miles travelled/fuel to refill, that would be more accurate assessment. 1 Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted February 5, 2013 Author Report Share Posted February 5, 2013 I am running stock injectors, therefore the number is pretty accurate. Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted February 5, 2013 Author Report Share Posted February 5, 2013 I tie-wired the waste gate shut and unfortunately I can't run anything lower than 15psi at 4.5K and higher under WOT. When the boost hits the 15psi mark I get a weird sound and a loss of power. I know weird sound is a terrible description, but it is not knock. It sounds more like a dull static from the TV or radio. I think it may actually be a boost leak that only lets air escape at a high pressure. I still need to do more investigating. Quote Link to comment Share on other sites More sharing options...
Volvo5.0 Posted February 5, 2013 Report Share Posted February 5, 2013 I am running stock injectors, therefore the number is pretty accurate. Your mileage is probably good but Hussein is right, your trip meter numbers are skewed because of the injectors. The greens you're using might be stock Volvo injectors, but they were never "stock" on an 850 with M4.3 I was stoked when I first installed my engine, but soon realized I'm not getting close to the 32mpg that my trip meter shows for city driving. Glad it's up and running. Post up some logs when you get a chance. What parameters are you logging? Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 5, 2013 Report Share Posted February 5, 2013 What are you using for a BOV/Recirc? What pressure is it set for? Needs to be set higher than the boost you are running - maybe it's bleeding off over 15psi? Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted February 5, 2013 Author Report Share Posted February 5, 2013 To clear up the confusion I am using stock orange injectors. I am currently logging EGT, AFR and timing advance. I will start logging boost in a week or so. What are you using for a BOV/Recirc? What pressure is it set for? Needs to be set higher than the boost you are running - maybe it's bleeding off over 15psi? HKS SSQV. I believe the construction of the HKS does not allow boost to leak. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 5, 2013 Report Share Posted February 5, 2013 HKS SSQV. I believe the construction of the HKS does not allow boost to leak. So, what pressure is it set to vent at? It has to release somehow, or you're saying there is no over-pressure vent??? Quote Link to comment Share on other sites More sharing options...
magicaljake Posted February 5, 2013 Report Share Posted February 5, 2013 im willing to bet at 14.5 psi with the 20g on orange injectors you are most likely maxing them out... see if you can log the injector duty cycle... are you using the stock fuel pump as well? playing with big injectors on stock fuel system can be a dangerous game... im wondering if the lack of power you are experiencing is related to something along these lines. and the hks ssqv is self adjusting and whenever i needed to tap into a RPM source i used the positive wire to injector #1 for an accurate rpm pulse Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted February 5, 2013 Author Report Share Posted February 5, 2013 So, what pressure is it set to vent at? It has to release somehow, or you're saying there is no over-pressure vent??? The SSQV has no pressure set to vent at, the more boost the harder the BOV clamps shut. im willing to bet at 14.5 psi with the 20g on orange injectors you are most likely maxing them out... see if you can log the injector duty cycle... are you using the stock fuel pump as well? playing with big injectors on stock fuel system can be a dangerous game... im wondering if the lack of power you are experiencing is related to something along these lines. and the hks ssqv is self adjusting and whenever i needed to tap into a RPM source i used the positive wire to injector #1 for an accurate rpm pulse I don't doubt that the injectors are near, or at, their limit. AFRs are at a solid 11.5psi at about 13PSI, but I let off the throttle past that point quickly. Fuel pump is a Walbro unit, but not the 255LPH. I believe it is the 210LPH pump. As soon as funds allow I hope to have a map scaled for greens at 4 bar. As for the RPM pickup, what are the wires going to the injectors? I assumed one was ground and the other was a square wave with a variable duty cycle. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted February 5, 2013 Report Share Posted February 5, 2013 As for the RPM pickup, what are the wires going to the injectors? I assumed one was ground and the other was a square wave with a variable duty cycle. Not ground. Power feed and signal (ground) via ECU. Don't see how you could get a rpm signal from that at all. Neg side of coil would make more sense, if you can't get it from the under dash connector (that you cannot pickup a signal under there makes no sense either, BTW). Have you tested it with a test light yet? Quote Link to comment Share on other sites More sharing options...
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