camshaft discussion: jdm d15b vs. zex 59300
11-30-2003, 12:57 AM
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camshaft discussion: jdm d15b vs. zex 59300
as we all know, the jdm d15b motor (sohc vtec) is said to have a more agressive cam than its counterpart here in the US (d16z6)... reason being is that the rods are of different length, and the compression is up a little bit. many may want to put a performance camshaft onto the d15b for a little more power...
only INFORMATION here please... no bs... specs would be wonderful!
only INFORMATION here please... no bs... specs would be wonderful!
11-30-2003, 02:01 PM
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Re: camshaft discussion: jdm d15b vs. zex 59300 (jdmsiR20)
um...the ZEX 59300 would probably outperform any OEM camshaft...
http://www.hadamotorsport.com/....html
http://www.hadamotorsport.com/....html
11-30-2003, 02:24 PM
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what is the lift/duration of each of them?
what is the car's final plan? FI? n/a? drag? autocross?
these are just a few of the question that need to be answered when trying to decide on a cam.
what is the car's final plan? FI? n/a? drag? autocross?
these are just a few of the question that need to be answered when trying to decide on a cam.
11-30-2003, 03:49 PM
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Re: (llewsirc)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by llewsirc »</TD></TR><TR><TD CLASS="quote">what is the lift/duration of each of them?
what is the car's final plan? FI? n/a? drag? autocross?
these are just a few of the question that need to be answered when trying to decide on a cam.
</TD></TR></TABLE>
true... the camshaft debate here is for mildly modified systems (i/h/e), vafc/safc, chipped/non-chipped ecu.... naturally aspirated street cam, drag once in a while...
just be nice to actually see the numbers for the jdm d15b vs. zex 59300/59100
what is the car's final plan? FI? n/a? drag? autocross?
these are just a few of the question that need to be answered when trying to decide on a cam.
</TD></TR></TABLE>
true... the camshaft debate here is for mildly modified systems (i/h/e), vafc/safc, chipped/non-chipped ecu.... naturally aspirated street cam, drag once in a while...
just be nice to actually see the numbers for the jdm d15b vs. zex 59300/59100
12-04-2003, 10:05 PM
#7
Re: (jdmsiR20)
I was using the 59100 in my D15B until yesterday. Basically, the 59100 will give you a little more power on the small lobes, but it seems to me that the stock D15B cam makes more power overall. There are two other issues with the 59100 cam as well.
1. The cam makes the valvetrain very noisy. ZEX/COMP recommend setting the lash at .008 Intake /.010 exhaust just like stock, but it sounds horrible. Even when I had mine at .004/.006 it was still excessive. The stock cam is extremely quiet by comparison. There may be insufficient ramp angle on the backside of the lobes, and this leads to the valves shutting too quickly and rocker arm chatter.
2. Timing. Both the 59100 and 59300 are made for a D16, so I will assume this finding relates to both models. The deck height of the D15B is shorter than the D16, so the cam timing is going to be off with the aftermarket cam. I calculated this to be about 9.8 degrees, or nearly a tooth on the cam sprocket. This is fine as far as timing the cam to the crank is concerned, as it still can be set straight up. The distributor will need to be advanced to account for this though, and I was unable to get mine set at 16 degrees BTDC even though my distributor was fully advanced.
With the stock cam the VTEC growl is not as pronounced, but it pulls more smoothly than the 59100.
My personal opinion of the 59100 for use in the D15B is
. I will need to experiment with it in a D16Z6 to see if some of the issues still exist. They are both P08 heads, so I'm sure it would still be noisy.
1. The cam makes the valvetrain very noisy. ZEX/COMP recommend setting the lash at .008 Intake /.010 exhaust just like stock, but it sounds horrible. Even when I had mine at .004/.006 it was still excessive. The stock cam is extremely quiet by comparison. There may be insufficient ramp angle on the backside of the lobes, and this leads to the valves shutting too quickly and rocker arm chatter.
2. Timing. Both the 59100 and 59300 are made for a D16, so I will assume this finding relates to both models. The deck height of the D15B is shorter than the D16, so the cam timing is going to be off with the aftermarket cam. I calculated this to be about 9.8 degrees, or nearly a tooth on the cam sprocket. This is fine as far as timing the cam to the crank is concerned, as it still can be set straight up. The distributor will need to be advanced to account for this though, and I was unable to get mine set at 16 degrees BTDC even though my distributor was fully advanced.
With the stock cam the VTEC growl is not as pronounced, but it pulls more smoothly than the 59100.
My personal opinion of the 59100 for use in the D15B is
. I will need to experiment with it in a D16Z6 to see if some of the issues still exist. They are both P08 heads, so I'm sure it would still be noisy.
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12-04-2003, 10:08 PM
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Re: (Jim Truett)
thanks for the opinion.. true, the d15 and d16 are both slightly different beasts... is there any input from a 59300 user? (on a jdm d15b)?
12-11-2003, 04:50 AM
#12
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Re: camshaft discussion: jdm d15b vs. zex 59300 (jdmsiR20)
The zex 59100 cam is not gonna make much if any power over that stock d15b cam. I would pm member eg6ajk. He had the zex 59300 cam in his d15b tuned and it only made 4whp so I seriously doubt the 59100 would do ****. I would probably consider going with a slightly more agressive cam than the zex 59300 for a d15b.
12-11-2003, 05:27 PM
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Re: camshaft discussion: jdm d15b vs. zex 59300 (SOHC_MShue)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">The zex 59100 cam is not gonna make much if any power over that stock d15b cam. I would pm member eg6ajk. He had the zex 59300 cam in his d15b tuned and it only made 4whp so I seriously doubt the 59100 would do ****. I would probably consider going with a slightly more agressive cam than the zex 59300 for a d15b. </TD></TR></TABLE>
yes, thats some good info... i remember seeing his dynos, and he said the 59300 didn't do too much, all gains past 6k... a more agressive cam with valvesprings and retainers will do much better
... any suggestions?
yes, thats some good info... i remember seeing his dynos, and he said the 59300 didn't do too much, all gains past 6k... a more agressive cam with valvesprings and retainers will do much better
... any suggestions?
12-11-2003, 07:16 PM
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Re: camshaft discussion: jdm d15b vs. zex 59300 (jdmsiR20)
my suggestion would be to port the head, upgrade valvetrain, and get a crower stage 3 cam.
12-18-2003, 04:47 PM
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Anyone ever thought about putting a D15B cam in a D16z6 head? It seems like it would be like putting an ITR cam in a GSR head in theory.
Sorry to drive the discussion in a different direction...but I've been readin for the last hour...and haven't seen anyone bring up putting a D15B cam in a z6 head. Personally I would like to try it...anyone know where I can pick up a D15B cam?
Sorry to drive the discussion in a different direction...but I've been readin for the last hour...and haven't seen anyone bring up putting a D15B cam in a z6 head. Personally I would like to try it...anyone know where I can pick up a D15B cam?
12-18-2003, 04:53 PM
#17
Re: (H23 EG Hybrid)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H23 EG Hybrid »</TD></TR><TR><TD CLASS="quote">Anyone ever thought about putting a D15B cam in a D16z6 head? It seems like it would be like putting an ITR cam in a GSR head in theory.
Sorry to drive the discussion in a different direction...but I've been readin for the last hour...and haven't seen anyone bring up putting a D15B cam in a z6 head. Personally I would like to try it...anyone know where I can pick up a D15B cam?</TD></TR></TABLE>
You would have the opposite problem as the one here:
"2. Timing. Both the 59100 and 59300 are made for a D16, so I will assume this finding relates to both models. The deck height of the D15B is shorter than the D16, so the cam timing is going to be off with the aftermarket cam. I calculated this to be about 9.8 degrees, or nearly a tooth on the cam sprocket. This is fine as far as timing the cam to the crank is concerned, as it still can be set straight up. The distributor will need to be advanced to account for this though, and I was unable to get mine set at 16 degrees BTDC even though my distributor was fully advanced."
The only place you can get the cam in the US is from an imported D15B engine. You would be better off with an aftermarket grind in my opinion.
Sorry to drive the discussion in a different direction...but I've been readin for the last hour...and haven't seen anyone bring up putting a D15B cam in a z6 head. Personally I would like to try it...anyone know where I can pick up a D15B cam?</TD></TR></TABLE>
You would have the opposite problem as the one here:
"2. Timing. Both the 59100 and 59300 are made for a D16, so I will assume this finding relates to both models. The deck height of the D15B is shorter than the D16, so the cam timing is going to be off with the aftermarket cam. I calculated this to be about 9.8 degrees, or nearly a tooth on the cam sprocket. This is fine as far as timing the cam to the crank is concerned, as it still can be set straight up. The distributor will need to be advanced to account for this though, and I was unable to get mine set at 16 degrees BTDC even though my distributor was fully advanced."
The only place you can get the cam in the US is from an imported D15B engine. You would be better off with an aftermarket grind in my opinion.
12-18-2003, 06:01 PM
#18
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Re: camshaft discussion: jdm d15b vs. zex 59300 (SOHC_MShue)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue »</TD></TR><TR><TD CLASS="quote">The zex 59100 cam is not gonna make much if any power over that stock d15b cam. I would pm member eg6ajk. He had the zex 59300 cam in his d15b tuned and it only made 4whp so I seriously doubt the 59100 would do ****. I would probably consider going with a slightly more agressive cam than the zex 59300 for a d15b. </TD></TR></TABLE>
indeed while, as in '01, I did few test, and run the cam in my EG, basically E/H/ECU setup made 117whp, after the cam top end jumped to 121whp, gains past 6k rpm good to about to 7.5k rpm. This was with no tuning, just a simple drop in.
car at the dyno while back.
dyno of different ECU setups (from P28 XS to RPT P08) on the D15b
my findings on the 59300 are:
-its noisy, regardless of the valve settings
-power improvements only felt past 6k rpm
-timing off by about 5degrees (either way (adv or ret) will depend on install)
-overall I would not buy another one I would opt for Exo or Crower stage 3 grinds or better
indeed while, as in '01, I did few test, and run the cam in my EG, basically E/H/ECU setup made 117whp, after the cam top end jumped to 121whp, gains past 6k rpm good to about to 7.5k rpm. This was with no tuning, just a simple drop in.
car at the dyno while back.
dyno of different ECU setups (from P28 XS to RPT P08) on the D15b
my findings on the 59300 are:
-its noisy, regardless of the valve settings
-power improvements only felt past 6k rpm
-timing off by about 5degrees (either way (adv or ret) will depend on install)
-overall I would not buy another one I would opt for Exo or Crower stage 3 grinds or better
12-18-2003, 06:46 PM
#19
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Re: camshaft discussion: jdm d15b vs. zex 59300 (eg6ajk)
yea i've been hearing some good stuff about the exospeed grinds . Does anybody have a dyno of one of their grinds vs. the 59300 cam?
. Does anybody have a dyno of one of their grinds vs. the 59300 cam?
12-20-2003, 09:41 AM
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Re: (BoostedHatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedHatch »</TD></TR><TR><TD CLASS="quote">is the 59300 too aggressive for a JRSC or Turbo app.???</TD></TR></TABLE>
to my understanding, the 59300 and 59100 is an N/A cam, you'll be better off with a well-suited turbo cam
to my understanding, the 59300 and 59100 is an N/A cam, you'll be better off with a well-suited turbo cam