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NX2K Junkie
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448 Posts
Discussion Starter #1
Could you please answer this question for me? Is it the cams? By the way how much hp is gained with JWT S3/S4 cams? How much with 91-92 cams? Last but not least how hard is it to put cams in? Should I just take it to a shop? Thanks folks!

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Greg Taylor
96 SE-R w/ stuff
My Page
 

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JordanWhiteMusic.com
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I think the JDM engines have higher compression, but I could be wrong.

On a 96 SE-R you'll gain maybe 14hp with the S3 cams and like 16 or 17hp with the S4's. Check SE-R.net for the real numbers, these are just numbers off the top of my head.

91-92 intake cams would give you 4-6hp. If you've never done mechanical work on your car don't attempt the cam install yourself, they may be too involved.

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Jordan White (Stormy)
'98 Sentra SE(R)
Hotshot G3 Header, Hotshot CAI, JWT s4 Cams, KYB AGXs, Eibach Sportlines, Courtesy F&R STB's, ES Mounts, MOMO Shifter, Nis-Knacks chrome projector headlights and clear corners, 205/50/15 Pirelli P700Z's on SE-R wheels, 205/40/17 Kuhmos on 17" Borbet Type S's for the summer

15.1 @ 90mph at Englishtown, NJ - 14's oh so close
 

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NX2K Junkie
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448 Posts
Discussion Starter #3
sorry double post...


[This message has been edited by borguesian (edited 04-03-2001).]
 

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NX2K Junkie
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448 Posts
Discussion Starter #4
I think I may just wait and get the C2s... what was the hp gain and price on those again?
 

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First off, please don't use the word "Jap". This can be disrespectful to some members. I'm not getting on your case, just informing you about it.

Second, the JDM motors have a compression ratio of 10:1 vs USDM motors having 9.5:1. The other difference is in the exhaust manifold. It looks better than a HotShot, or any other header.


Anyone want to buy mine??

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Eric Waterman
1996 200SX SE-R
1997 200SX SE-R
1991 Sentra SE-R
 

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NX2K Junkie
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448 Posts
Discussion Starter #6
Im very sorry for that word... I meant no disrespect... If a moderator would please fix that I would appriciate it! How much did u want for that header? Is the a hp difference between that and a Hotshots?
 

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www.motorists.org
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<font face="Verdana, Arial" size="2">If a moderator would please fix that I would appriciate it!</font>
Done


And you think I didn't read the forums anymore...


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Ben98SentraSE
98 Sentra SE TURBO
 

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Jordan, I wasn't jumping on his case, just letting him know. That subject has been covered many times on the mailing list, but I figured he had joined after the last time it came up. No harm no foul.
 

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Kris and Greg, if you look at the manifold, it doesn't have a place for an O2 sensor of the EGR to hook up. The EGR can be disconnected, but you would need to weld a bung for the O2 sensor. I'm going to see if the stock secondaries will fit up to the manifold this weekend. The tubes are longer than the OE, and long than a HS header. IF it does fit, then you would have to take your OE secondary, and have it shortened. I'll let everyone know.
 

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NX2K Junkie
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Discussion Starter #12
Sounds good... Ben thanks for changing it!
 

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<font face="Verdana, Arial" size="2">Originally posted by NoVTECSER:
Kris and Greg, if you look at the manifold, it doesn't have a place for an O2 sensor of the EGR to hook up. The EGR can be disconnected, but you would need to weld a bung for the O2 sensor. I'm going to see if the stock secondaries will fit up to the manifold this weekend. The tubes are longer than the OE, and long than a HS header. IF it does fit, then you would have to take your OE secondary, and have it shortened. I'll let everyone know.</font>
Awsome, thanks

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Kris94G20™
 

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<font face="Verdana, Arial" size="2">Originally posted by Storm88000:
91-92 intake cams would give you 4-6hp. If you've never done mechanical work on your car don't attempt the cam install yourself, they may be too involved.

</font>
PUSSY! Its easy!



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Ryan Walsh, 1997 200sx SE-R w/ ES mounts, JWT s4's, AEBS 4-1, PR CAI, Sportlines/AGX's, Bridgestone re730's, Stillen GTR grill
 

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<font face="Verdana, Arial" size="2">Originally posted by Storm88000:
I think the JDM engines have higher compression, but I could be wrong.

On a 96 SE-R you'll gain maybe 14hp with the S3 cams and like 16 or 17hp with the S4's. Check SE-R.net for the real numbers, these are just numbers off the top of my head.

91-92 intake cams would give you 4-6hp. If you've never done mechanical work on your car don't attempt the cam install yourself, they may be too involved.

</font>
The JDM engine also has the same intake cam as in the Classic SE-R.


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Ryan Walsh, 1997 200sx SE-R w/ ES mounts, JWT s4's, AEBS 4-1, PR CAI, Sportlines/AGX's, Bridgestone re730's, Stillen GTR grill
 

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also no emissions crap!
 
G

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Hey all, all of you are right on the money, but it is a combo of all of those things together. they do have higher DR @ 10:1, no EGR/AIV, so no emmisions crap to go into the intake and reduce the flame charge so you get more "POP" per cylinder. I have learned alot from this forum and SE-R.NET, so I thank everyone from these to sites for what little I have learned and learning more..

Peace out all

;-)
 

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so is it confirmed that all JDM SR20DE's had the 10.1:1 CR??

if so is turbo still an option since it seems kinda high for forced induction
 

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Coropate greed hater
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Not all have 10:1 cr. Its just some of the European-made DE's that have that 10:1 cr (usually distinguishable by their red-top VCs). All JDM DEs have 9.5:1 cr, AFAIK.
 

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harris81 Not all have 10:1 cr. Its just some of the European-made DE's that have that 10:1 cr (usually distinguishable by their red-top VCs). All JDM DEs have 9.5:1 cr, AFAIK.
Some Primera 10:1 motors don't have a red valve cover.

But, all JDM sr20des aren't 9.5:1 compression either, there are few that are 10:1 compression but no one has found a good way to distinguish besides removing the head and inspecting the pistons.

And about turboing a 10:1 there is thread on here somewhere where Andreas Miko give a very good setup to use.
 
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