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Forced Induction Forum Sponsored by Active Autowerke
Discuss supercharging, turbocharging and even nitrous and water injection here.
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Old 07-14-2013, 08:45 PM   #801
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Did a bunch of simulated road tuning got the waste-gate duty cycle dialled in with new spring. The power comes on linearly and not as hard. It's less dramatic. I thinks it's probably faster off the line as I have traction control off and it right on the limit of traction and keeps building as the speed increases right out of 1st.

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Old 07-19-2013, 04:28 PM   #802
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My SMG was doing some random weird things... Like not shifting at high rpm between 5 and 6 th.. at times. Then I would park it for the night and in the morning it wouldn't sart... I had to reset the SMG computer two days consecutively only after sitting over night. Then it would have some slip when shifting randomly....

Fix: Replaced salmon relay ... Car and SMG running great.... Shifts hard no slip and in all gears....

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Old 07-27-2013, 02:08 PM   #803
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Fixed meth leak at base of tank. Turns out-that the hose from the base of the tank to the meth pump had worn and was leaking as a result. So I cut the end off and it seated and sealed properly. My inline fuel pump checks out as working. I wanted to rule out all possible reasons I was running out of fuel up top above 16psi on pump with my new turbo before going with new injectors.

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Old 07-29-2013, 08:19 PM   #804
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Next up is to change out my fuel regulator and replace the screen in my fuel filter. Currently I have 64psi at idle which seems to me a little low as the Bentley says it should be 72.5 psi + / - 3 psi. So I'm 6 psi shy of minimum and I'd rather be on the other side of that.


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Old 07-29-2013, 08:26 PM   #805
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You may want to have a look at that again...
3.5 BAR, +/-0.02 BAR or 50 PSI, +/- 3 PSI at sea level is what it should be.
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Old 07-29-2013, 08:36 PM   #806
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You may want to have a look at that again...
3.5 BAR, +/-0.02 BAR or 50 PSI, +/- 3 PSI at sea level is what it should be.
I think u were seeing the MS42 MS 43 specs

here are the MS S54

Click image for larger version

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Old 07-29-2013, 08:40 PM   #807
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I think u were seeing the MS42 MS 43 specs

here are the MS S54

Attachment 519198
Can't argue with the book
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Old 07-29-2013, 08:42 PM   #808
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Can't argue with the book
Ur obviously a good sport... We will have to meet one of this days...


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Old 07-29-2013, 08:49 PM   #809
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Ur obviously a good sport... We will have to meet one of this days...


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I'm sure it'll happen sooner or later...this summer has been a bit different from my norm...I like driving it all over the place lol.
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Old 07-29-2013, 08:49 PM   #810
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If I can get my fuel pressure to 72 or so at base I should be good to 640 WRHP on pump and 575trq. Then I will have more injector room when I run the meth / water as it pulls fuel to compensate. I should be able to make my target 700rwhp and 600trq with my current setup. Hoping anyway.

I also want to toy with the idea of plain water injection. I want to link it up to the aux fuel pump circuit or AEM spare output and have it come on 5psi boost on pump. I think I will be able to run more timing and pull a few extra pump ponies just for kicks, I also like the idea of a cooler charge and detonation insurance.


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Old 08-03-2013, 12:03 AM   #811
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Swapped out the fuel pressure regulator. Took car out to tune the boost... Got to 20psi on pump...no knock and lots of injector duty left more testing to come


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Old 08-03-2013, 12:31 AM   #812
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^^ Thats some good news there.
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Old 08-04-2013, 12:52 AM   #813
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^^ Thats some good news there.
Ur right about that. The fuel regulator was out to lunch. Effected top end fuel. Ran a few more pulls past 6800k in 5th gear and no issues at all. Car runs perfect. Tommarrow ill do a full red line run and that will confirm it. Then I can get some productive dyno time in.

(Sure glad I didn't just throw some bigger injectors at it)


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Old 08-04-2013, 10:07 PM   #814
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Well after a bunch of runs today... I am at the limit of my injectors for sure... I have it Running great and pulls to redline at 17psi @ 86percent duty cycle on 94 pump... Not sure what power I'm making I suspect around 640rwhp 550trq given the previous dyno. I'm going,for new set of injectors no sence in messing around.. Still glad I got the fule pressure sorted out now I have a good base.


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Old 08-05-2013, 11:51 PM   #815
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Clear up your PMs you're at your limit


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Old 08-06-2013, 01:05 AM   #816
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Instead of Meth just switch to E85 or E100.. Then there's always a little Nitro Methane...

I know its a pain to find... But its good for boost...

Dave
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Old 08-06-2013, 01:10 AM   #817
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Instead of Meth just switch to E85 or E100.. Then there's always a little Nitro Methane...

I know its a pain to find... But its good for boost...

Dave
Great idea but no e85 in Canada... That's why I'm going 50/50 meth / water... It's a good compromise.


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Old 08-06-2013, 01:14 AM   #818
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Funny, we get a lot of ethanol from Canada... Not as much as Brazil though...

Has anybody tried just adding another row of injectors on the intake and feeding them from a separate methanol tank?
If you use the AEM secondary injection circuit (If this version can run it...) you'd have roll in control and be able to match the map to the richer value required with Alch...

Dave.
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Old 08-06-2013, 01:19 AM   #819
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Funny, we get a lot of ethanol from Canada... Not as much as Brazil though...

Has anybody tried just adding another row of injectors on the intake and feeding them from a separate methanol tank?
If you use the AEM secondary injection circuit (If this version can run it...) you'd have roll in control and be able to match the map to the richer value required with Alch...

Dave.
Hopefully some day we will have e85. I thought of direct injection but the only problem is the AIT sensor would be bypassed and the denser charge / cooling effect be negated in the tune... HPF system uses meth as a fuel and to me that's too dangerous. I don't like wet nitrous systems either for the same reason.


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Old 08-06-2013, 01:23 AM   #820
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I don't think its too dangerous, the gas is just about as bad, meth tends not to explode just burn real hot..
There is the backfire issue... eek...

I've only done wet nitrous the last few years, too many blown motors with spray bars..

Nothing like a sprint car on meth,, nothing but motor wheels and driver.. Dead simple...

Sounds like your closing in on the power we get in the sprint car...

Dave..

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