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04-18-2018, 03:52 PM
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#1
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Name: Jordank520
Title: Green Behind the Ears
Status: Not Here
Join Date: Jan 2012
Member`s Gallery
Posts: 50
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Is my setup capable of making 600hp?
I recently built a p pumped 24v and I’m curious if anyone would have a ball park range of what power it could make. When I had my vp I made 632/1138 on a wire out motor. Current specs on new motor are
24v block bored .20 over
110# valve springs
160hp p7100
4GSK
Rack plug
Torq tek over flow valve
191 delivery valves
No fuel plate
AFC starwheel messed with (buddy with a 12v did it not sure what he exactly did.)
Timing is at 22.5*
7x.14 injectors
66 over s475
Airdog 150 with a 40# spring
It’s pretty quick but I thought it seemed to have more power when it had a vp on it
It does start breaking up alittle over 2500 rpms while free reving it, hoping that it’s my 4GSKS not adjusted properly could be wrong
__________________
98.5 SCLB p pump 24v, dap 7x.14 injectors, 66/s475, airdog 150, nv4500 with sb 3600DD
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04-18-2018, 03:56 PM
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#2
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
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Posts: 4,412
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Should be over that number by a good bit, the engine breaking up over 2500 is a strong sign you don't have enough timing advance.
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04-18-2018, 05:39 PM
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#3
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Name: DDually
Title: Still spooling..
Status: Not Here
Join Date: Nov 2009
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Posts: 2,095
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I've only had one p pump that would free rev without spitting and sputtering. I'd bump the timing up a little more as well.
__________________
1995 Cummins with almost no matching paint, 2 dents
2001 VW TDI South bend, tune, nozzys, custom stuff that's rusting, one custom thing that's not rusting
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04-18-2018, 07:08 PM
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#4
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Name: Jordank520
Title: Green Behind the Ears
Status: Not Here
Join Date: Jan 2012
Member`s Gallery
Posts: 50
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Would you happen to know what would be a safe number to run on timing. I live in Northwest Indiana so it does get pretty cold and I’d like it to start. I also do pull a trailer maybe 8k tops .
__________________
98.5 SCLB p pump 24v, dap 7x.14 injectors, 66/s475, airdog 150, nv4500 with sb 3600DD
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04-18-2018, 07:14 PM
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#5
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Name: Jordank520
Title: Green Behind the Ears
Status: Not Here
Join Date: Jan 2012
Member`s Gallery
Posts: 50
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Any idea on what would be a number to try for timing?
__________________
98.5 SCLB p pump 24v, dap 7x.14 injectors, 66/s475, airdog 150, nv4500 with sb 3600DD
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04-18-2018, 08:01 PM
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#6
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Name: turbo2387
Title: Nipple Fluffer
Status: Not Here
Join Date: Jun 2011
Location: Indiana
Member`s Gallery
Posts: 665
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22* and attempting to tow was a joke with my truck. Ide not go over that if it ever hooks to a trailer that can handle more than a lawn mower.
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04-18-2018, 08:07 PM
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#7
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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Quote:
Originally Posted by turbo2387
22* and attempting to tow was a joke with my truck. Ide not go over that if it ever hooks to a trailer that can handle more than a lawn mower.
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I've seen first hand where a very mild ppump 24valve running small injectors needed around 22 timing to run decent. These ain't 12v's
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04-18-2018, 08:09 PM
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#8
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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Quote:
Originally Posted by Jordank520
Would you happen to know what would be a safe number to run on timing. I live in Northwest Indiana so it does get pretty cold and I’d like it to start. I also do pull a trailer maybe 8k tops .
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How are y'all setting the timing?
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04-18-2018, 08:31 PM
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#9
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Name: Jordank520
Title: Green Behind the Ears
Status: Not Here
Join Date: Jan 2012
Member`s Gallery
Posts: 50
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My buddy who has a dial indicator that goes in place of number 1 fuel line is how mine was done.
__________________
98.5 SCLB p pump 24v, dap 7x.14 injectors, 66/s475, airdog 150, nv4500 with sb 3600DD
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04-19-2018, 06:29 AM
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#10
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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Quote:
Originally Posted by Jordank520
My buddy who has a dial indicator that goes in place of number 1 fuel line is how mine was done.
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That's probably where your problem is. Go back to pin time the pump, then pull the inj pump gear, then tdc the engine, then turn back the balancer how many degrees back you want the engine advanced over the pumps pin time.
If it's a stock ppump they are usually around 13°, or close enough.
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04-19-2018, 07:52 PM
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#11
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Name: Jordank520
Title: Green Behind the Ears
Status: Not Here
Join Date: Jan 2012
Member`s Gallery
Posts: 50
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How u explained it is how I initially got it to 22.5* then my buddy with the dial indicator told me what I should be at. My balancer was 9-1/4” then multiples that by 3.14 then divided that by 360 to find out how much movement is a degree.
__________________
98.5 SCLB p pump 24v, dap 7x.14 injectors, 66/s475, airdog 150, nv4500 with sb 3600DD
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04-20-2018, 05:39 AM
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#12
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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Quote:
Originally Posted by Jordank520
How u explained it is how I initially got it to 22.5* then my buddy with the dial indicator told me what I should be at. My balancer was 9-1/4” then multiples that by 3.14 then divided that by 360 to find out how much movement is a degree.
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Exactly, go back to that procedure.
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