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Old 05-13-2017, 08:25 PM   #21
jasonc

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I think something is holding you back, I've seen how simple and easy it was to get a stock type 12valve in the 11's. I've also seen where they had everything but didn't run enough timing and was holding back. Its a proven formula how to make power, your manifold isn't.
 
Old 05-13-2017, 08:26 PM   #22
jasonc

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Buddy nothing against your manifold just trying to help.
 
Old 05-13-2017, 08:32 PM   #23
Redrider2911

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Hey I appreciate any help and ideas I can get. Lol The only real difference between a stock style manifold and mine is that mine isn't divided right? Maybe I'll throw a divider in there...
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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
Old 05-13-2017, 08:32 PM   #24
Redrider2911

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Sorry that it wasn't lighter out. I do have some better lighted video but I was letting out to get it to shift.

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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
Old 05-13-2017, 08:48 PM   #25
turbo2387
 
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These are your numbers
Ide personally tighted the spring gate a few full turns and re-test. Get some more numbers so you can make a chart.
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Last edited by turbo2387; 05-13-2017 at 08:50 PM.
 
Old 05-13-2017, 09:02 PM   #26
jasonc

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You can play with the gate on the secondary if you want, might as well set it tight where it spools quick, what that set is made for. Towing.
 
Old 05-14-2017, 08:07 AM   #27
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I've made quite a few passes with 75mm primary under various secondaries. Your numbers don't look that bad.

I always pushed the 75mm into the low-mid 40s for best power (numbers depended on the DA), then set the secondary for the total boost. Numbers were normally 42-45/85-90, with 90-100 drive pressure. You're in that ballpark, maybe tighten the gate on the secondary a turn or two.

Your egts are high because of too much fuel. When I was running the 75 w/160hp pump, 5x16s worked best. When I switched to 5x18s, I had to move up to a 80mm primary. Keep in mind though, 1600* isn't good for towing, but it's not bad for a 1/4 mile pass. Much less, and you're leaving some hp on the table.
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Old 05-14-2017, 10:02 AM   #28
Redrider2911

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Thanks guys. Yea. Let me improve my fuel delivery so I know I'm getting consistent and accurate results. Then I'll probably tighten the secondary up a turn or 2. Eventually I plan on sending the pump out to Seth.

I thought that one would see more efficiency with a bigger injector and shorter injection event. Is this not the general agreement? This IS a tow rig and what I built it for, I've just been using the track to gauge the tuning and improvements; and of course it has become more and more addicting. I understand that 1600* for short times like a 1/4 mile pass isn't too bad and that when towing I will want to keep an eye on that. Do you guys think I can clean up the bad haze and slight smoke with 5x16s without the pintle and lift mods and still get into the 11s once I get my trans tuned?...
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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
Old 05-14-2017, 10:09 AM   #29
Redrider2911

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Here's a pass I made letting off the throttle to try to get it shifting where I wanted.

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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
Old 05-14-2017, 11:09 AM   #30
Signature600
 
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Put a plate in that thing....

80psi at 90psi drive isn't bad, just pull a little fuel to get the EGT's where you want, and I bet it doesn't slow down much...

Since it's a tow rig, keep the 60mm WH1C and forget ANY 64mm charger...you will not like towing with it. If you are towing, I would not go above a 60mm S300 based charger on any 12v...the better turbine wheel is the reason to switch, not for a bigger compressor. A 58ET/68/14 would be a SUPER top charger for your setup...but I don't think you're done with what you have yet...


IMHO,
Chris
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Old 05-14-2017, 12:53 PM   #31
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Imo you have way to much injector to ever pull effectivly. No one makes 80psi pulling the horses down the interstate. Its more like 20 merging into traffic. Then 5-10 after your up to speed. The 18's may make lots more hp up top, however you dont want up top hp, you want clean acceleration with cool egts that boogies when you hit the skinny pedal.

Right????

Consider a couple sizes smaller injector if towing is truely in this truck future. A plate will take out top end fuel. Tighter afc springs will take out interstage fueling but your base fueling is a 5x18 off boost. It will always smoke and be hazy.

Last edited by turbo2387; 05-14-2017 at 12:59 PM.
 
Old 05-14-2017, 01:08 PM   #32
Redrider2911

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Well really I need to get my gooseneck hitch finished so I can hook up the 30ft trailer and see what EGTs even look like. Right now warm idle is about 350*, 35mph cruise is 600*, and 70mph cruise is about 800* at 10psi Boost. maintaining 70mph up a STEEP grade will net no more than 1050* with about 20psi Boost.

I do plan on getting injectors because these ones haze at idle so bad (which I believe is mostly because of the modded pintle and my out of balance pump). I just don't know if I want to try for some more straight forward non-moded and hopefully cleaner 18s or go 16s.

I'll tighten the wastegate up a turn or 2, put my sump and 1/2" lines in, get the trans shifting where I want it, and report back after Diesel Days at the stage strip this weekend.

Thank you for all your advice everyone.
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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
Old 05-14-2017, 01:12 PM   #33
turbo2387
 
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Keep us posted
 
Old 05-14-2017, 01:32 PM   #34
Redrider2911

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Drag strip* Hahaha. I hate it that we can't edit posts after a certain amount of time.
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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
Old 05-25-2017, 12:42 PM   #35
Redrider2911

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I went to the track the other night and ran a 12.3 at 113mph. So I got some improvement, trans still isn't shifting where I would like; letting off the pedal to shift. Then on my last run I blew out an exhaust manifold gasket. Upon disassembly I found that I have a few cracks on the inside of the turbine housing? How serious is this?

Click the image to open in full size.

Click the image to open in full size.
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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
Old 05-26-2017, 12:43 AM   #36
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Quote:
Originally Posted by Redrider2911 View Post
I went to the track the other night and ran a 12.3 at 113mph. So I got some improvement, trans still isn't shifting where I would like; letting off the pedal to shift. Then on my last run I blew out an exhaust manifold gasket. Upon disassembly I found that I have a few cracks on the inside of the turbine housing? How serious is this?

Click the image to open in full size.

Click the image to open in full size.
Cracks are common and they will get worse over time. They slowly grow under normal use, quickly grow when you blast them with high temp exhaust during 1/4 mile runs. I'd say it took me 300 1/4 mile passes from the time of first cracks to complete external cracks and destroyed exhaust housing.
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Old 05-26-2017, 03:16 AM   #37
Redrider2911

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Thanks for the info Will. So you are saying run it! Lol. I felt really doomed when I first seen this because I expected a quick fix. For some time I have considered swapping it to an HE351CW but between having to change the plumbing and finding a good used turbo, I haven't done it. Others have thrown out the idea of running a 57mm S300 but I just can't justify it right now.
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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
Old 05-26-2017, 08:14 AM   #38
YOUNG GUNS15
 
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Everyone in this thread is like "towing with a 64 is gonna suck" I'm over here like.... single s475 and 3k stall, no problem towing! Hahaha

On the turbine housing, go ahead and run the heck out of it. Then claim the forced upgrades when it's time for bigger and better!


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Old 05-31-2017, 01:53 PM   #39
Redrider2911

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Replaced my manifold gaskets and paid close attention to any potential exhaust leaks. Added a divider in my manifold to split the T3 flange between #2 and #3, leaving about a 3/16 gap between the divider and the t3 flange to allow some crossflow. I also put the mechanical fan back on for the summer.

Off idle to 10psi feels like it improved quite a bit. Drive pressure is up 10psi across the board. Spool feels about the same. But overall power seems to have dropped a very noticeable amount. Maybe it is just the 90 degree weather the past few days, but I'm really having to try hard to break the back tires loose. I don't know what is going on and I'm starting to get frustrated.
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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread

Last edited by Redrider2911; 05-31-2017 at 01:59 PM.
 
Old 05-31-2017, 01:58 PM   #40
Redrider2911

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I'm going to be working with the spring gate tonight to see what I can muster out of it. Maybe its just a tuning issue with the manifold now being divided. I took some time to put together a Spring Gate Calculator to at least attempt to "gauge" where my settings might actually be. These aren't my current specs in the worksheet, but if you guys could take a look to point out any bugs I would appreciate it.

Kris
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49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
 
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