again low whp dyno number with cams =( - SR20 Forum
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Old 04-11-2011, 11:04 AM   #1 (permalink)
oneslowsentra

 
Join Date: Mar 2008
Location: san jose CA ..los banos

Feedback Score: 3 reviews
again low whp dyno number with cams =(



soo i got my car dynoed and i made a whomping 133.4 first run then i lowered the timing a lil and i made 126.0whp and so i moved the timing again and made 133.3whp the guy who ran the car at the dyno wasnt the actual owner who does the dyno becuase the guy who dynoed it didnt have a license so he asked his friend to accelerate the car but for some reason i dont think the guy was giving it full throttle idk he just seemed scared or something to mess up my car or something .. but anyways i dynoed when it was about 89 degrees or so maybe a lil hotter it was about 3pm my car was overheating on the way to da dyno. but let it cool off and ran the car. after the third run i ask the guy if i can check the gauges and soooo i find out the guy ran my car when it was overheating. so idk if he ran it while it was hot all three runs. any who


on the dyno pulls it shows that i keep loosing power after 70-75mph. idk what rpms that is but i have s4 cams so i figure it shouldnt have lost power but made more at that rpm? i have no tq numbers since hes dyno doesnt work with tq ? idk he said it wasnt working..so idk if maybe his dyno dont work period??


parts include

jdm sr20 140 compression across all pistons
aem cold air intake
ported jdm manifold
S4 cams
Jvt racing headers
full 3 inch exhaust. with 2.5 magnaflow muffler
jgy 8.8 flywheel
jgy 6 puck clutch
solid motor mounts
gspec crank pulley and water pump pulley

and im sure thats about it cars acessories have been removed and car weights 2,140...

so idk if its my knock sensor kicking in?? thats retarding my ecu timing? or if maybe a teeth skipped when i installed my cams?

Last edited by 92wcr; 04-11-2011 at 11:20 AM.
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Old 04-11-2011, 11:05 AM   #2 (permalink)
oneslowsentra

 
Join Date: Mar 2008
Location: san jose CA ..los banos

Feedback Score: 3 reviews
last set up with stock usdm sr20 made 144whp
that was without pulleys and without full exhaust.

i know the pic u cant see it but it wont let me upload it any bigger idk whats wrong with it but i can send you the pic thru an email or thru text if you want to see it clearly ...


let me know

Last edited by 92wcr; 04-11-2011 at 11:21 AM.
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Old 04-15-2011, 04:26 PM   #3 (permalink)
oneslowsentra

 
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Location: san jose CA ..los banos

Feedback Score: 3 reviews
anyone??
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Old 04-15-2011, 11:25 PM   #4 (permalink)
Don't deny Jesus Christ

 
Join Date: Oct 2007
Location: So Cal

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My guess is u either need to make sure u didn't skip a tooth when installing the cams or ur motor is tired. Those compression numbers are kinda low.
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