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Old 04-23-2011, 09:44 AM   #1 (permalink)
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Default JRSC+minime+bisi level 2 cam

Gentlemen,
so after my Mini-Me build on my 88 EF that produced a respectable 147WHP I ran across a Jackson Racing Supercharger and decided a HC D15B2/Z6 combo would problably enjoy some more CFM coming through combustion chamber. I am in the process of assemblinng and will post pics once I get home. My question that i would appreciate feedback on is whether my Bisi Level 2 NA cam will work well the forced air of SC. I am running stock 6 PSI on JRSC and had runners ported and S tube cleaned up but am hoping to get close to 200whp. I currenty have the following on my setup but again am concerned if NA cam from Bisi will work well or if I should switch to stock cam.

Thanks and appreciate your feedback.
  • Bisi V2 Ceramic Header
  • Z6 Ported Head Intake&Exhaust
  • Bosal 2.25 Catback
  • Skunk HC flat valves
  • K&N CAI
  • Walbro HC fuel pump 255
  • 235cc Injectors
  • Bisi Level 2 Cam***
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Last edited by baby50; 04-23-2011 at 09:53 AM.
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Old 04-23-2011, 12:49 PM   #2 (permalink)
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Since you already have it give it a try.
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Old 04-23-2011, 01:00 PM   #3 (permalink)
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Since you already have it give it a try.
X2 then go from there
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Old 04-23-2011, 03:22 PM   #4 (permalink)
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Gentlemen,
so after my Mini-Me build on my 88 EF that produced a respectable 147WHP I ran across a Jackson Racing Supercharger and decided a HC D15B2/Z6 combo would problably enjoy some more CFM coming through combustion chamber. I am in the process of assemblinng and will post pics once I get home. My question that i would appreciate feedback on is whether my Bisi Level 2 NA cam will work well the forced air of SC. I am running stock 6 PSI on JRSC and had runners ported and S tube cleaned up but am hoping to get close to 200whp. I currenty have the following on my setup but again am concerned if NA cam from Bisi will work well or if I should switch to stock cam.

Thanks and appreciate your feedback.
  • Bisi V2 Ceramic Header
  • Z6 Ported Head Intake&Exhaust
  • Bosal 2.25 Catback
  • Skunk HC flat valves
  • K&N CAI
  • Walbro HC fuel pump 255
  • 235cc Injectors
  • Bisi Level 2 Cam***
all looks good, if you already have the cam run it, but (someone correct me if im wrong) NA cams have more overlap than say a force inducted one, maybe look into a different cam later down the road..... thats just me tho.... post pics or your a troll..... lol jk holmes

o and i hate to shit on your parade but, your car is NOT an EF, its an ED, unless you can prove me wrong....
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Old 04-23-2011, 05:45 PM   #5 (permalink)
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Too much overlap w that cam but hey, might as well run it if you've already got it.

You need bigger injectors. Wouldn't expect you to make 200whp with that cam and absence of WM injection. Not calling you a liar but i have a somewhat difficult time believing that you are making 147whp with your current setup

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Old 04-23-2011, 05:58 PM   #6 (permalink)
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Well after my experiences with the Crower Stage 2 turbo cam (63441ZT, less overlap) and a problem wth too much boost, I'm wondering what something like his NA cam would do for my setup.

Plus, there's a local (he posts here I think) with a D16Y8 and an M45 with the custom made Laminova cored intake manifold, and I'm pretty sure he's running the Crower stage 2 NA cam. He says he hit 224whp with that cam.

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Old 04-23-2011, 06:03 PM   #7 (permalink)
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Well after my experiences with the Crower Stage 2 turbo cam (63441ZT, less overlap) and a problem wth too much boost, I'm wondering what something like his NA cam would do for my setup.
Too much boost? Wha???
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Old 04-23-2011, 06:31 PM   #8 (permalink)
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Yup! M62 Endyn kit on a D16A6/D16Z6 setup. Look carefully at the hp curve and where it drops off versus what the boost pressure (numbers are on the left side of the plot) does at the same rpm and higher.



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Old 04-23-2011, 08:28 PM   #9 (permalink)
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Well after my experiences with the Crower Stage 2 turbo cam (63441ZT, less overlap) and a problem wth too much boost, I'm wondering what something like his NA cam would do for my setup.

Plus, there's a local (he posts here I think) with a D16Y8 and an M45 with the custom made Laminova cored intake manifold, and I'm pretty sure he's running the Crower stage 2 NA cam. He says he hit 224whp with that cam.
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Yup! M62 Endyn kit on a D16A6/D16Z6 setup. Look carefully at the hp curve and where it drops off versus what the boost pressure (numbers are on the left side of the plot) does at the same rpm and higher.
if you had to much boost you would be blowing head gaskets, or having head lift.... read up on overlap and forced induction, then search around for a good cam then get back to us....

2ed.. m62 spinning 26lbs of boost, it is a roots style supercharger, the tq and hp is gonna fall off in the upper rpm range...... and the cam could have a lot to do with that if it is a NA cam

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Too much boost? Wha???
im with you.....
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Old 04-23-2011, 11:29 PM   #10 (permalink)
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Originally Posted by Jaker View Post
Well after my experiences with the Crower Stage 2 turbo cam (63441ZT, less overlap) and a problem wth too much boost, I'm wondering what something like his NA cam would do for my setup.

Plus, there's a local (he posts here I think) with a D16Y8 and an M45 with the custom made Laminova cored intake manifold, and I'm pretty sure he's running the Crower stage 2 NA cam. He says he hit 224whp with that cam.
thats shanes build. i have posted pic's etc in my intercooler post of his setup. as far as i know that power was on a hub dyno as well. not a roller.

yes he is running that na cam. though the best cam is a stock cam but high lift. that will get you the best power on the JRSC setup. but you'll need to get that custom made.

good luck post back with numbers when you get them.
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Old 04-24-2011, 06:57 AM   #11 (permalink)
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if you had to much boost you would be blowing head gaskets, or having head lift.... read up on overlap and forced induction, then search around for a good cam then get back to us....

2ed.. m62 spinning 26lbs of boost, it is a roots style supercharger, the tq and hp is gonna fall off in the upper rpm range...... and the cam could have a lot to do with that if it is a NA cam
OK. Most of that didn't make any sense to me. Can you elaborate? I've done plenty of reading in my 25+ years of wrenching and modding Hondas. I am intimately familiar with the premise of overlap and forced induction. However most of that theory comes from the V8 world and there's been a trend recently towards more overlap in both turbo and supercharged Honda engines leading to more power.

I'll definitely be visiting a custom ground cam for my build, as there seems to be no truly supercharger specific grinds out there.

In my case, the "too much boost" is leading to severe drag on the crank from the blower working so bloody hard to push to 26 psi. Conservative estimates are putting the drain at around 75hp at the crank. If I can free up some of that power by slowing the blower down a little, and letting the motor (porting, cam, increased displacement) flow better, my goal of 300whp is not out of the realm of possibility.
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Old 04-24-2011, 07:21 AM   #12 (permalink)
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There is a difference between not enough flow in the head and too much boost........
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Old 04-24-2011, 08:00 AM   #13 (permalink)
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Now you're just being cryptic. I know my problem is a combination of both. I'm working towards correcting them both to some extent.
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Old 04-24-2011, 09:49 AM   #14 (permalink)
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Never been called cryptic lots of other things though.....
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Old 04-24-2011, 05:14 PM   #15 (permalink)
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No matter how you cut it, more overlap in a S/C setup is counterproductive.

Using a cam with more overlap to 'leak' boost through the cylinders to reduce the amount of parasitic loss is not the ideal way to solve your problem. Whether you port/build your head or not, there's still a finite volume that can to be filled to 'stack' the air charge and built boost.

I would agree that at the boost levels you're running, you probably do have quite a bit of parasitic loss occurring. At the same time, however, the amount of power you make at those boost levels should be more than enough to compensate for that loss.

My best guess is that your power is dropping off because the amount of heat generated at those boost levels is preventing your from running enough timing to take advantage. Just a guess though...

Are you running any kind of W/M injection?
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Old 04-24-2011, 05:41 PM   #16 (permalink)
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Max IATs on the dyno were 150F. I'm running the AEM with the 550cc nozzle. We were running plenty of timing. My Motorola 2.5 bar MAP was maxing out at 22.8psi, but the one on the dyno was obviously registering higher.




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Old 04-24-2011, 09:10 PM   #17 (permalink)
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Interesting Feedback and Dyno and AT examples. I have included some pictures of my current build for someone who doubted my 147 WHP number as well as if I had an EF. Based on your feedback I am leaning towards removing the Bisi cam and see what kind of number I can pull with stock cam and remaining add on's. Cam specs are as follows for the record 264D Intake and 244D Exhaust.
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Old 04-24-2011, 09:26 PM   #18 (permalink)
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EF is a JDM chassis code.....You don't have one... Look at your vin it's a ED jhmed..........that's all he was saying.
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Old 04-25-2011, 12:52 AM   #19 (permalink)
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EF is a JDM chassis code.....You don't have one... Look at your vin it's a ED jhmed..........that's all he was saying.
on that logic i have a DC2.
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Old 04-25-2011, 07:01 AM   #20 (permalink)
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Um ok...........anyways..
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