I have a problem and already asked for help and also got a reply, but would like to understand the problem solving a little better :
I have a 2004 Viper engine -> no knock sensor / crank sensor different position than 2005
I want to install it in a 2005 QC automatic SRT10.
Here is the question : will the crank position sensor which is different to 05's and not for automatic transmission be able to read and interprete the signals correctly, means will the engine run properly ?
Can someone explain where the 04 sensor "grabs" the signal and why it will work in combination with the flexplate vs. The flywheel ?
Thanks a lot for your help
Arne
Your flexplate will need to use a crank trigger setup like the flywheel. You should be able to simply recreate the spacing or use an old flywheel for parts.
You can also get a custom flexplate with crank trigger tabs as well from Reactor.
Otherwise extend wire, use 04 plug, and you'll have no knock sensors. PCM will recognize crank sensors the same. Hope this helps Arne
Scott, just to be 100% sure !
Option 1 : modified flexplate with crank sensor from 04 block
Option 2 : change nothing and just extend the wires and plug for 04 and good to go
.....or do i have to do a mix of both options ?
Sorry for sounding stupid but its all about the question if a lot of money has been wasted on a 04 block and it wont work together with the 05 automatic....
Unless your 6'8" it's better from underneath.
DO NOT use a 2004 block in a 2005-2006 AUTOMATIC!
1. The crank position sensor was moved away from the flywheel for a reason, not the least of which was reliability. You do not want to go cutting slots in your flexplate unless you really want to experience a flexplate failure. Can you say stress riser? A flexplate is by no means a 1" thick steel flywheel. Extending the wires is the least of your worries.
2. The Knock Sensors must be utilized with an Auto trans, as they are much more likely to experience knock than a manual version on a reguular basis. Adding knock sensor mounts is a HUGE pain, and you never want to use "added" mounts on a non-programmable knock system. The harmonics WILL differ, and the OE ECU will not be able to correctly hear knock frequencies.
3. The block/bell housing bolt pattern differs. Just one more headache in this.
Spend the money and find an Automatic block, or at least a 05-06 in general.
Knock sensor is for motor what does that have to do with tranny? Unless your trying to say auto will load the motor more than the manual.
Just saying....
1. You don't cut slots in flexplate, metal block like spacers are used to pulse crank sensor just like all manual flywheels have. Olan at Reactor has made us a few. 04 crank sensors have given us no issues in the past compared to 05/06. Both have been quite reliable. Is truck guys tend to put the miles on these engines
2. Don't agree with necessity to run knock sensors unless a highly tuned engine. Even then reading plugs/A/F is key, not relying on knock sensors to pull timing.
3.no headache at all on bolt pattern, it's not that different and I proved with my Quad Cab T56 conversions and my own personal that everyone said couldn't be done. 70k miles later I still smile each shift
Mileage increased from 12.5-13 hwy to 18-19.5, lost weight, faster, etc. Also had a guy or two put our 48re behind a manual block with no issues.
Done turbo 400s and 4l80s as well. Of course with adapter plate
No adapter plate for 48re to T56 blocks needed
To each their own. Not me, and not ever here. Do it right or don't do it at all.
That said...
Number 1, that's interesting, considering that's a Hall Effect sensor, and not a Magneto Reluctive [VR] sensor. By using pads rather than holes, you just inverted the signal output. I would love to see what that ECU "thinks" if going on now that all of the rising and falling edges are reversed
On number 2, of course, the tune is paramount as knock sensing is reactionary. However, that doesn't change the fact that you just handicapped yourself. Things happen, and its better to be safe and correct, than sorry you saved a few bucks when doing it. Fuel changes, injector problems, plug issues... a dozen different things can cause knock issues.
It will produce more load but like I posted that is affected by tuning. Knock sensors aren't saviors, tuning is Hence why QC tuning is lazy factory
A/F and plug reading is crucial regardless of stock or heavily modified, boosted etc.
Ok well I have a 04 with out knock sensors so befor I build this motor should I get a newer block and scrap my 04 one? I was going to boost it but would hate to do something half ass.