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Discussion Starter · #1 ·
Has it moved on from the 96's now?! No fair! For those of you who dont know...just this past weekend I did a compression test on my car. I got 200 across all four cylinders. Normal(or max) is 178. The cause of slow ass 96 syndrome is said to be caused by compression at or above 200, like mine. What causes this, and what needs to be done to fix it? Eric, is what i read in the archives true? it says a lot of 96 guys put in a 1 intake cam and it helped. I was planning on ordering s4s this week, so i guess that would help correct it?

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Ryan Walsh...Hmmm, what should I buy with my $708 bucks from income tax returns?!
 

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That sucks. I wonder what mine is.

The 98 SE's rule. j/k



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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

15.454 @ 88mph at Englishtown, NJ - with the $hitty stock cams, 14's this season
 

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Discussion Starter · #4 ·
<font face="Verdana, Arial" size="2">Originally posted by ser_200sx:
I got 190 190 180 190 with the same tester. I have a 96 with 93K miles.

MarC
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Yup. I am still wondering what the hell was up with Kierans 150 170 150 170. that was wierd. Im gonna try again tomorow with my compression tester just incase somethin was funky. althoguh i highly doubt it cuz his was brand new. i opened it myself.


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Ryan Walsh...Hmmm, what should I buy with my $708 bucks from income tax returns?!
 

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Ryan,
you had all the spark pulgs out and the throttle wide open right?

When I tested my current car in October, i got:

1 2 3 4
200 200 200 200 (thats not good, so i checked it again)
200 200 200 178 (interesting, so i did it again)
178 178 178 178

Those numebrs aren't exact because I am pulling them from memory, but that ii the pattern I had. I don't know why it didn't read right at first.


[This message has been edited by jacen99SE (edited 03-13-2001).]

[This message has been edited by jacen99SE (edited 03-13-2001).]
 

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Discussion Starter · #7 ·
<font face="Verdana, Arial" size="2">Originally posted by jacen99SE:
Ryan,
you had all the spark pulgs out and the throttle wide open right?
</font>
Yup, we did. Marc can vouch for me there. Anyways, we did it 2 times in a row. Each time we got 200 200 200 200

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Ryan Walsh...Hmmm, what should I buy with my $708 bucks from income tax returns?!
 

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Discussion Starter · #10 ·
<font face="Verdana, Arial" size="2">Originally posted by Storm88000:
Ok, can someone explain whats bad about having high compression?

</font>
Means bigtime carbon build up on top of pistons. This translates to pistons not traveling as far/as well as they should, and eventually spreads past the pistons, like a cancer, and could be bad for your engine. Obviuosly it will get slower and slower wiht time. Well i guess it could be a good thing. It will mean i can send my head to DPR sooner than planned for some headwork, hehehe.



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Ryan Walsh...Hmmm, what should I buy with my $708 bucks from income tax returns?!
 

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Mine started at 210 across the board. After the cam, it dropped to 180psi. Its not having a higher compression ratio, but the values are staying closed longer than they should. No one has been able to figure out why. I've checked my cam timing, and its correct. I never had a chance to check Stefanie's '97 before the cam install.
 

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Oh my God...where do I start.

Everyone take a pill back up a few feet and breath.

The "SA 96 Syndrome" was only experienced by a few people who had low dyno figures combined with high compression in the 96' SE-R's. What cured it was a cam swap in said cars.

What seems to have happened is a run of cam billets were degree'd off. Not enough to have a recall but enough to affect performance.

This may or may not be limited to a certain model year. You have to go by build dates, not model year. All cars within a certain build date can have the same run of cams. During that period a model year change could have happened. IE late 96 and a few early 97 model years were affected.

None of this was even proven but was put together from the facts at hand.
 

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Discussion Starter · #13 ·
<font face="Verdana, Arial" size="2">Originally posted by Jay Hass:

What seems to have happened is a run of cam billets were degree'd off. Not enough to have a recall but enough to affect performance.

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OK, Jay, so what you are sayin is all i gotta do is buy some cams in order to fix this?! Oh well, that is a good thing, cuz i was planning on ordering some nice shiny new JWT S4's this week anyways



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Ryan Walsh...Hmmm, what should I buy with my $708 bucks from income tax returns?!
 

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Ryan, what was the build date of your car? Mine was 08/96. I believe Jay has something here. Jay, how can I check the cam degree? I have a '96 intake cam and a '97 intake cam collecting dust.
 

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<font face="Verdana, Arial" size="2">Originally posted by RPWSER:
OK, Jay, so what you are sayin is all i gotta do is buy some cams in order to fix this?! Oh well, that is a good thing, cuz i was planning on ordering some nice shiny new JWT S4's this week anyways



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That seemed to cure their problems.

Another thing to keep in mind is even the build date may not show consistency. The motors may have been assembled and put aside! You never really know what happens in a factory. The motor may have sat for 6 months or got mixed up with others of different build dates.

I guess what I am saying is even with build date it's hard to nail down but better than just saying "96" or "97".

My 97 was built in 11-96. I guess I really have a 96.


To degree a cam you need to find centerline, and then get a degree wheel. It's not easy.

[This message has been edited by Jay Hass (edited 03-14-2001).]
 
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Maybe the cars with the higher compression were all Friday cars. All the guys wanted to go home for the weekend and just threw the **** together.
 

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ya, degreeing a cam is not fun to do unless you are a total dork and thrive for that kind of challenge. the only true slow years are a 98-99 and everybody knows that.
 
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