05-19-2023, 02:59 PM | #5937 | |
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The difference in headers and exhaust might make a difference but probably not that much. |
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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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05-19-2023, 07:24 PM | #5939 | |
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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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05-20-2023, 10:43 AM | #5940 | |
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Running HBP on a stock block is pretty spicy. what is your limiter at? |
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05-21-2023, 09:15 AM | #5941 | |
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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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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 |
05-21-2023, 10:27 AM | #5943 | |
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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. Last edited by 86Hakone; 05-21-2023 at 10:43 AM. |
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05-21-2023, 10:47 AM | #5944 |
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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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05-21-2023, 11:03 AM | #5945 | |
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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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05-21-2023, 12:21 PM | #5946 | |
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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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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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05-21-2023, 03:31 PM | #5948 | |
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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 Last edited by tomm.brz; 05-21-2023 at 03:49 PM. |
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05-21-2023, 03:59 PM | #5950 |
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Thanks for clarifications. HKS have appealing price tho
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