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Old 05-19-2023, 02:59 PM   #5937
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Is the 360 wheel a guess of from a dyno? I'm running c38 HBP, ID1050x injectors, UEL header, With Flex Fuel Kit/Tune from CSG. It would be nice to know i'm creeping up on 400 on a cold day with good fuel. The car feels fast so I haven't bother taking it to a dyno.
yep mustang dyno so 360 is probably conservative. With good e85 I'm sure its even closer to 4. That pull was with 68% but I found a shell recently that has 77%+.

The difference in headers and exhaust might make a difference but probably not that much.
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Old 05-19-2023, 03:56 PM   #5938
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uel headers tends to limit a bit power at high rpm, with e85 of course it s less relevant, but still not the same as el header
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Old 05-19-2023, 07:24 PM   #5939
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yep mustang dyno so 360 is probably conservative. With good e85 I'm sure its even closer to 4. That pull was with 68% but I found a shell recently that has 77%+.

The difference in headers and exhaust might make a difference but probably not that much.
Yeah I went back and saw your previous post with the dyno sheet. Jackson Racing has a 375 a dyno sheet for the HBP with essentially the same setup so I guess its accurate. The highest my flex fuel sensor has ever read is 90% from a Sunoco near me but usually it's between 75-85.

Everything else on the car is stock except the radiator and oil cooler. I still drive the car 10/10ths like it was stock and it's holding up great so far with no issues. If it blows up I guess I can just build it faster.
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Old 05-20-2023, 10:43 AM   #5940
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Yeah I went back and saw your previous post with the dyno sheet. Jackson Racing has a 375 a dyno sheet for the HBP with essentially the same setup so I guess its accurate. The highest my flex fuel sensor has ever read is 90% from a Sunoco near me but usually it's between 75-85.

Everything else on the car is stock except the radiator and oil cooler. I still drive the car 10/10ths like it was stock and it's holding up great so far with no issues. If it blows up I guess I can just build it faster.

Running HBP on a stock block is pretty spicy. what is your limiter at?
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Old 05-21-2023, 09:15 AM   #5941
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Running HBP on a stock block is pretty spicy. what is your limiter at?
The tune by CSG didn't increase the rev limit. The engine in a stock configuration doesn't really make much more power by increasing revs from what I have read.

After doing a bunch of research I believe this setup is safe and at the limits of a stock motor. What seems to kill these engines are shitty fuel with bad tunes.

People want to slap on a bunch of power with shitty California or foreign equivalent fuel. Or they are trying to push way too much low end torque and grenading their transmissions.

I'm still on my stock clutch for now and I never push the car from a dig. I mostly just drive the car to work and three hour drives to see family. I redline it every time I dive it and bang the gears quite a bit when I run it out on the interstate. I have managed to get it over 140 a few times on sunday mornings when no one else is on the road but it kinda scares the shit out of me because I-45 sucks.
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Old 05-21-2023, 09:42 AM   #5942
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he meant probably REDUCING limiter, because with high boost pulley it reaches 0.95bar in summer and almost 1.1bar in winter at limiter
and that s a wreck to stock Internals, and mad with 91oct
cautious would be limit to 7200rpm
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Old 05-21-2023, 10:27 AM   #5943
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he meant probably REDUCING limiter, because with high boost pulley it reaches 0.95bar in summer and almost 1.1bar in winter at limiter
and that s a wreck to stock Internals, and mad with 91oct
cautious would be limit to 7200rpm
Ah that makes sense the tuner from CSG didn't seem to have any objections to the numbers he was seeing in my data logs.



I have another log that shows 1.83 bar at a slightly higher rpm I think the intake starts to get restrictive at that point.

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Old 05-21-2023, 10:47 AM   #5944
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Ah that makes sense the tuner from CSG didn't seem to have any objections to the numbers he was seeing in my data logs.

Honestly I was originally going to do it but I fully expected to not have the engine survive the year. Now I'm just worrying about the transmission. Putting 350whp+ through a stock block definitely puts your engine on a countdown.
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Old 05-21-2023, 11:03 AM   #5945
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Ah that makes sense the tuner from CSG didn't seem to have any objections to the numbers he was seeing in my data logs.



I have another log that shows 1.83 bar at a slightly higher rpm I think the intake starts to get restrictive at that point.
which intake temp was that taken at? i guess pretty warm
Also you are using 93oct then, still better than 91oct
Oh and the values i posted before i always forget they were taken with Canada weather and with a larger intercooler, so about 0.1 bar more than a normal C38 with high boost pulley
Still, 0.9 bar of boost is kinda high, you definitely wants to avoid 91oct

Anyway i ve tuned also your same configuration to some guy... it s not certainly tuner's responsability if an engine destroy at 0.8bar boost with stock internals, we tune with good afr and conservative timings so luck is also a factor here
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Old 05-21-2023, 12:21 PM   #5946
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which intake temp was that taken at? i guess pretty warm
Also you are using 93oct then, still better than 91oct
Oh and the values i posted before i always forget they were taken with Canada weather and with a larger intercooler, so about 0.1 bar more than a normal C38 with high boost pulley
Still, 0.9 bar of boost is kinda high, you definitely wants to avoid 91oct

Anyway i ve tuned also your same configuration to some guy... it s not certainly tuner's responsability if an engine destroy at 0.8bar boost with stock internals, we tune with good afr and conservative timings so luck is also a factor here
I only run e85 unless I go somewhere I cant get it then I run 93 and I have a flex fuel kit. I try not to drive crazy when not on good fuel. The intake temp was at 42.6c in this log and 52c in my other log. I think I was doing about 111MPH in this log and and 113MPH in the other slightly higher one. The logs are from a year ago and my memory is kinda fuzzy. My conclusions are drawn from lots of reading, driving the car for a year, and information posted by CSG.MIKE about what he did to stop blowing up these cars.

I also try to stay on top of maintenance by checking and changing oil and fluids frequently, and doing inspections on all the clamps to avoid boost leaks or belt sheer.
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Old 05-21-2023, 01:58 PM   #5947
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Sorry When i first commented , i had the wrong idea you were running California 91oct

If you are running E85 is another story, besides the small chance of bending rods still, running e85 makes everything A LOT safer, the intake temps are helping keeping boost down a little too and anyway the high boost is only at higher rpm
Keep enjoying your car))
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Old 05-21-2023, 03:31 PM   #5948
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Sorry When i first commented , i had the wrong idea you were running California 91oct

If you are running E85 is another story, besides the small chance of bending rods still, running e85 makes everything A LOT safer, the intake temps are helping keeping boost down a little too and anyway the high boost is only at higher rpm
Keep enjoying your car))
HKS sc and Jackson sc have similarities tunning wise?
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Old 05-21-2023, 03:38 PM   #5949
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well jackson with high boost pulley you can see from the graph
With low boost pulley is around 0.10-0.15 bar less

hks v2 comes with high boost pulley 90mm and 39mm restrictor, it has more medium rpm boost, just a little bit more but it caps around 0.6bar and at redline boost goes down
you can play with restrictor and around 44mm of restrictor it can reach same boost of jackson with high boost pulley, but more under the curve boost
hks v2 unrestricted reaches 1bar easily, has more boost than jackson high boost, but less than c38 with rs pulley

hks v3 is similar overall to jackson high boost, but has less boost under the curve

not super different at all

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Old 05-21-2023, 03:59 PM   #5950
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Thanks for clarifications. HKS have appealing price tho
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