HE351 code for me78569

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Offline Rx7man

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Re: HE351 code for me78569
« Reply #30 on: June 15, 2015, 07:57:26 PM »
I've seriously been considering cutting the elbow from the HX35 (it's 3") and welding it to the compressor housing of the 351... I hate having reducers, etc, and I have plenty of boots already... the other option I was thinking of is grinding the lip off and making a sleeve that goes over top of it, and epoxying it on.. as for the rest of the charge pipe, I have a couple spares, I'd cut and weld it  longer and with whatever bend I need in it.
'94 dodge, Colt Cam, head worked, NV5600, 3.55's, SB clutch, Ford manual hubs w. hawk brakes, custom flatdeck, custom aluminum bumper, cab off restoration, totally new engine, Mahle pistons @19:1..HE351VE with 67mm turbine and 67x95mm compressor
440hp/1000 ft lb @ 2400 RPM

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Offline me78569

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Re: HE351 code for me78569
« Reply #31 on: June 15, 2015, 08:27:19 PM »
I agree I would have much rather had all oem, the stainless diesel product is really nice now that I have it installed. just requires one 2.75 to 3" boot.  everything else is oem. for $80 I am pretty happy, clears everything nicely.





2000 Dodge 2500 quad-cab 5.9 Cummins slt, homebuilt 47re revmax 3.5 messed with vb, Quad adr iquad, 4" tbe , pureflow 150 gph. he351ve in the works 100hp DFI inj

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Offline Rx7man

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Re: HE351 code for me78569
« Reply #32 on: June 15, 2015, 09:01:32 PM »
I see you kept the non-vgt manifold.. I was lucky I got a manifold with the turbo, so I might as well use it I guess... I s'pose I could make an adapter too, but for my air filter setup I think I'd be better off with everything a little further back and lower... I just posted a pic of the downpipe adapter I made in my "my life, my coding" thread.. I'll work on the rest of it as time allows
'94 dodge, Colt Cam, head worked, NV5600, 3.55's, SB clutch, Ford manual hubs w. hawk brakes, custom flatdeck, custom aluminum bumper, cab off restoration, totally new engine, Mahle pistons @19:1..HE351VE with 67mm turbine and 67x95mm compressor
440hp/1000 ft lb @ 2400 RPM

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Offline Bdubb'z

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Re: HE351 code for me78569
« Reply #33 on: June 15, 2015, 09:51:16 PM »
Is that a brass adapter and fitting on the manifold for the back pressure??  If so I'd be careful with the egt's. 

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Offline Rx7man

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Re: HE351 code for me78569
« Reply #34 on: June 15, 2015, 11:31:29 PM »
brass should be fine.. I've had some brass fittings on my exhaust manifold for a long time and have not had any trouble with them.. When brazing (with brass) the steel needs to be CHERRY red, so that's up in the 1800F range... I think you'll have other problems before that :P 
'94 dodge, Colt Cam, head worked, NV5600, 3.55's, SB clutch, Ford manual hubs w. hawk brakes, custom flatdeck, custom aluminum bumper, cab off restoration, totally new engine, Mahle pistons @19:1..HE351VE with 67mm turbine and 67x95mm compressor
440hp/1000 ft lb @ 2400 RPM

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Offline me78569

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Re: HE351 code for me78569
« Reply #35 on: June 16, 2015, 08:35:58 AM »
yea it is brass, I thought about that, and I am a little worried as depending on what it was cast out of it could have issues. 

However I got the "kit" from
ISSPRO Exhaust Back Pressure Installation Kit
and it is an issopro kit marketed for this..... so I hope.



Since my truck is an auto I have the heat exchanger on the side of the block so I can't use a 4th gen manifold.  I wasn't willing to loose the heat exchanger so I went this route. 
2000 Dodge 2500 quad-cab 5.9 Cummins slt, homebuilt 47re revmax 3.5 messed with vb, Quad adr iquad, 4" tbe , pureflow 150 gph. he351ve in the works 100hp DFI inj

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Offline me78569

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Re: HE351 code for me78569
« Reply #36 on: June 19, 2015, 07:51:09 AM »
Well today was the first day with the new turbo.  Very different feeling compared to the old hx35. 

I THINK I need to open the veins up some across my boost map as it feels like I am driving the turbo pretty hard and it generates a good bit of heat with the veins set at 235 or about 9cm ( ithink gotta find that chart with the pos vs pos)

I can however do 65mph with the veins %100 open without smoke, and no boost or drive pressure, provided it is relatively flat.  EGTS are in the 800-950 range, but I don't think it is an issue since it really isn't fueling much at 0psi boost. EGT's seem to be more related to a lack in air compared to overfueling.  ( one in the same I suppose)  I need to drop my pot override to lower than %30 throttle.
2000 Dodge 2500 quad-cab 5.9 Cummins slt, homebuilt 47re revmax 3.5 messed with vb, Quad adr iquad, 4" tbe , pureflow 150 gph. he351ve in the works 100hp DFI inj

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Offline Rx7man

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Re: HE351 code for me78569
« Reply #37 on: June 19, 2015, 07:59:06 AM »
/* Turbo Size (cm^2) vs Position
  *   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20  21  22  23   24  25
  *  960 918 876 835 793 751 709 667 625 584 542 500 458 416 375 333 291 249 207 165 124  82  40*/
sorry about the formatting

9cm is  half the size of a stock HX35,  I can't say anything more than that though.
'94 dodge, Colt Cam, head worked, NV5600, 3.55's, SB clutch, Ford manual hubs w. hawk brakes, custom flatdeck, custom aluminum bumper, cab off restoration, totally new engine, Mahle pistons @19:1..HE351VE with 67mm turbine and 67x95mm compressor
440hp/1000 ft lb @ 2400 RPM

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Offline hakcenter

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Re: HE351 code for me78569
« Reply #38 on: June 19, 2015, 08:02:11 AM »
Need to remove the whole inverting vane position. No reason for it. Match what Cummins did.

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Offline me78569

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Re: HE351 code for me78569
« Reply #39 on: June 19, 2015, 08:02:28 AM »
beat me to it haha. 


thanks. 

I realyl should flip my vein position numbers to 960-40 vs 40-960,  low on the list.
2000 Dodge 2500 quad-cab 5.9 Cummins slt, homebuilt 47re revmax 3.5 messed with vb, Quad adr iquad, 4" tbe , pureflow 150 gph. he351ve in the works 100hp DFI inj

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Offline me78569

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Re: HE351 code for me78569
« Reply #40 on: June 19, 2015, 10:00:51 AM »
Alright the more pressing issue I have is how easy it is to bark the turbo. 

Thoughts on this? 
Code: [Select]
/////////////////////////////POS Manage////////////////////////////////////////
//Manages Boost map position in an effort to prevent Barking when letting off the throttle.
void POSManage() {
  if ( ((Thrreadings[2] + Thrreadings[3]) >>1) < (5+((Thrreadings[0] + Thrreadings[1]) >>1))) //Detect if throttle is lifted more than %5
    { DesiredPosition = BoostVeinPosCalc(Bstreadings[0]);}        // use the first boost reading in the array and keep the veins at that position
  else { DesiredPosition = BoostVeinPosCalc(BoostPressure);}
}

I created another array for TPS readings.  I am watching to see if I let of the throttle then if I am I am taking the oldest boost value in the array and using that for the vein position.  This should effectively delay the vein position movement when letting off throttle. 


Thoughts? 
2000 Dodge 2500 quad-cab 5.9 Cummins slt, homebuilt 47re revmax 3.5 messed with vb, Quad adr iquad, 4" tbe , pureflow 150 gph. he351ve in the works 100hp DFI inj

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Offline Rx7man

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Re: HE351 code for me78569
« Reply #41 on: June 19, 2015, 11:44:37 AM »
How often are you reading the TPS?  if you're reading it very quick, you may need a larger array
'94 dodge, Colt Cam, head worked, NV5600, 3.55's, SB clutch, Ford manual hubs w. hawk brakes, custom flatdeck, custom aluminum bumper, cab off restoration, totally new engine, Mahle pistons @19:1..HE351VE with 67mm turbine and 67x95mm compressor
440hp/1000 ft lb @ 2400 RPM

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Offline hakcenter

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Re: HE351 code for me78569
« Reply #42 on: June 19, 2015, 01:21:47 PM »
Best way is to setup a vane position smoothing alog.

Look at my 1.1 code, and the set postion.

Since position runs every 2ms, I made it change position in increments of 2 every 2ms while within 10, then adjust by 10s if it's larger than 20.

You need to do something similar where positions to smaller sizes, take longer than going to larger sizes.

Using rpm helps here cause the shafts has inertia and doesn't immediately slow down,  then compute to a smaller size.

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Offline me78569

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Re: HE351 code for me78569
« Reply #43 on: June 19, 2015, 01:24:27 PM »
The tps doesn't seem to be stable enough to do what I wanted originally.



Hak, that is what I am thinking I will work with what you have code wise and see what I come up with.   

I can drive it without to much issue at all, but I wouldn't wanna let someone else drive.  I would likely chew my fingers off with how nervous I would be.
2000 Dodge 2500 quad-cab 5.9 Cummins slt, homebuilt 47re revmax 3.5 messed with vb, Quad adr iquad, 4" tbe , pureflow 150 gph. he351ve in the works 100hp DFI inj

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Offline hakcenter

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Re: HE351 code for me78569
« Reply #44 on: June 19, 2015, 01:59:14 PM »
Ya just go through my code. I'm pretty sure I update last rpm every 100ms or so. Calculating position every 50ms under 50k then 25ms to 100, then its every couple of ms or so up to speed.