last minute pre-checks! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

riptor · 06-26-2012, 11:23 AM

hello to all you sr20 gurus!
Im trying to get my car ready for the dyno.
I was doing some final checks over my engine and I just wanted to make sure I dont have a BIG problem before I strap on to the dyno and get tuned.
My compression readings are kinda low I think. I dont have an fsm for the sr,
but the one I have for the ka'd 89 240sx says lowest is supposed to be 149psi with a difference of 14psi/300 rpms.
number 1

number 2

number 3

number 4

As you can see, my numbers are above that, but just barely. I just lookin for some insight from all of you that have done tunes in the past.
Will i be able to get a solid tune with these numbers,
or should I say fuck it and rebuild?
I have a s13 redtop
stock bottom end
stage 1 cams +valve springs
freddy intake w, N14 TB
555 nismos
stock turbo
full exhaust + test pipe
hard pipes and front mount
Thank you guys for your time.
-steve

Crondy · 06-26-2012, 11:47 AM

you're missing something.

riptor · 06-26-2012, 12:03 PM

Quote:

Originally Posted by Crondy

you're missing something.

im running a PFC D-jetro...my bad

future · 06-26-2012, 12:06 PM

Looks like good numbers

And almost all the same +-1psi

Crondy · 06-26-2012, 01:33 PM

i meant your goggles.

riptor · 06-26-2012, 01:44 PM

Ok crondy! Who are you! Only people that know that are my navy buddys and my fam.....lol

*fliprayzin240sx* · 06-26-2012, 03:43 PM

150 is healthy for SR20s. Minimum is 125 ish.

zneubauer · 06-26-2012, 08:17 PM

looks good to me.

riptor · 06-27-2012, 04:10 AM

awsome..thanks guys! i can feel confident about strappin on the rollers!!

Kuma · 06-27-2012, 04:43 AM

GL on the dyno... post numbas

riptor · 06-27-2012, 06:07 AM

will do!!!! thanx!!!

06-26-2012, 11:23 AM	#1
riptor Zilvia Member Join Date: Oct 2006 Location: va beach Age: 41 Posts: 241 Trader Rating: (2) Feedback Score: 2 reviews	last minute pre-checks! hello to all you sr20 gurus! Im trying to get my car ready for the dyno. I was doing some final checks over my engine and I just wanted to make sure I dont have a BIG problem before I strap on to the dyno and get tuned. My compression readings are kinda low I think. I dont have an fsm for the sr, but the one I have for the ka'd 89 240sx says lowest is supposed to be 149psi with a difference of 14psi/300 rpms. number 1 number 2 number 3 number 4 As you can see, my numbers are above that, but just barely. I just lookin for some insight from all of you that have done tunes in the past. Will i be able to get a solid tune with these numbers, or should I say fuck it and rebuild? I have a s13 redtop stock bottom end stage 1 cams +valve springs freddy intake w, N14 TB 555 nismos stock turbo full exhaust + test pipe hard pipes and front mount Thank you guys for your time. -steve

06-26-2012, 03:43 PM	#7
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	150 is healthy for SR20s. Minimum is 125 ish. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

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06-26-2012, 11:47 AM	#2
Crondy Zilvia Member Join Date: Jul 2011 Location: Holland Age: 32 Posts: 174 Trader Rating: (1) Feedback Score: 1 reviews	you're missing something.

06-26-2012, 01:33 PM	#5
Crondy Zilvia Member Join Date: Jul 2011 Location: Holland Age: 32 Posts: 174 Trader Rating: (1) Feedback Score: 1 reviews	i meant your goggles.

06-26-2012, 01:44 PM	#6
riptor Zilvia Member Join Date: Oct 2006 Location: va beach Age: 41 Posts: 241 Trader Rating: (2) Feedback Score: 2 reviews	Ok crondy! Who are you! Only people that know that are my navy buddys and my fam.....lol

06-26-2012, 08:17 PM	#8
zneubauer Zilvia Addict Join Date: Jun 2011 Location: Florida Age: 34 Posts: 640 Trader Rating: (7) Feedback Score: 7 reviews	looks good to me.

06-27-2012, 04:10 AM	#9
riptor Zilvia Member Join Date: Oct 2006 Location: va beach Age: 41 Posts: 241 Trader Rating: (2) Feedback Score: 2 reviews	awsome..thanks guys! i can feel confident about strappin on the rollers!!

06-27-2012, 04:43 AM	#10
Kuma Zilvia Addict Join Date: May 2012 Location: The last house on the right Age: 39 Posts: 758 Trader Rating: (0) Feedback Score: 0 reviews	GL on the dyno... post numbas

06-27-2012, 06:07 AM	#11
riptor Zilvia Member Join Date: Oct 2006 Location: va beach Age: 41 Posts: 241 Trader Rating: (2) Feedback Score: 2 reviews	will do!!!! thanx!!!