dyno results and EMS question

[Id RaThEr DrIfT]

k i my scanner isn't working at the monet so i cant post them up but n e ways my brother payed for my tunning for x-mas woopie n e ways i was mad i got was lees than i expected lmk what u guys think .............


255 whp and 306 lbs of TQ @ 17 lbs of boost

mods are
SR20det red top
Baker steel braided turbo lines
cosmetic head gasket
Gt2871r (.64)
megan exh. manifold
full 3" exhaust
Aem Ems
s14 oem radiator
electric
greddy Vspl fmic
740cc deathwerks injectors
sard fpr
walbro 255 fp
nismo fpr
nismo trany mounts and engine mounts
megan pulley set
stage 2 Exedy clutch



I'm wondering why i got more Tq than hp and i was actually expecting/ hopping for at least 280whp iv seen the same setup put out 300whp or even a lil more so yeah id figure i might get 250 tq and 280-300 hp but yeah other way around any ideas why? or does 250 sound right?



n also my 2 step launch i cant activate it cause my car doesnt read speed n the odometer doesnt work id figure the speed sensor doesnt work so that why any idea how to wier it up to a switch? i was told i could do that so yeah ........

[GSXRJJordan]

Damn Gus - glad you finally got that AEM in there and tuned, where'd you go/who did it?

Your powerband is probably pretty low in the revs, right? HP is measured as a function of torque and RPMS, and that's why you'll always see the HP and torque numbers cross at 5250* RPM - any time you're making more torque than HP you're loosing efficiency at the top end somewhere. I'd need to see the graph to know for sure, but the first things I'd check are fuel pressure and spark plugs.

About getting the launch control down, head over to AEM's forums, and check around in the 240 forum for common causes and search for the wiring diagram - I think it's a resistor wired in with a switch (to switch resistance on and off) but you'll need to get on there to find out what size/where to wire it in.

[Id RaThEr DrIfT]

....................................

[reactor]

Just to clear something up, it crosses at 5250.

[Id RaThEr DrIfT]

yeah i know but i didnt wanna post up every single one so yeah

[allstar]

post the dyno sheet.. i havnt seen it yet

BTW - your car looked more like 300+whp when you raped that little honduh at the races..
another win for the nismoknights..

[Id RaThEr DrIfT]

k here they are lmk what u guys think ...

[S14DB]

I would like to see the timing map. Looks like they put no advance when boost comes on.

[Id RaThEr DrIfT]

any other suggestions?


k i checked my fuel pressure its pretty low i believe 26 ... do u guys think that was the problem?
but im kinda thinking not cause as far as i know they car control how much fuel goes in through the aem can't they?

[S14DB]

I think it's a timing advance issue from your Dynos.

Hook the 2 step up to the clutch switch.

[usdm180sx]

Originally Posted by Id RaThEr DrIfT

any other suggestions?


k i checked my fuel pressure its pretty low i believe 26 ... do u guys think that was the problem?
but im kinda thinking not cause as far as i know they car control how much fuel goes in through the aem can't they?

a/f starts out lean but stabilizes at ~11.5 which is ok. Did you check the TIMING?

[gt3071r240]

I agree it looks like there was no changes made to the timing map once the engine went into boost, see how quicly the tq drops off. . . Looks to be a uncomplete tune, what shop did the work?

[Id RaThEr DrIfT]

hey nice turbo ^^ 3071r haha i was gonna get that one ... but church automotive did my tune .. guy named shawn ... so u guys suggest going some where else?

[Id RaThEr DrIfT]

Originally Posted by S14DB

Hook the 2 step up to the clutch switch.

i hooked it up and spools great but if i try and launch it itll go but since my car still doesnt read speed/mph then it cuts out at 4k cause its supposto read that it hits 2 mph and cut off so yeah

[Tex Willer]

Is the 4,085:1 diff. ratio correct? In what gear did you run on the dyno?

[Id RaThEr DrIfT]

Originally Posted by Tex Willer

Is the 4,085:1 diff. ratio correct? In what gear did you run on the dyno?

i guess im stupid or slow cause i dont know what ur talking about when u say 4,085:1 diff .... my rear i have a welded? not what ur talking about ha? maybe ur talking about my gear ratio well i dont know .... and it was 4th gear ....

[Dr.Baby]

i know you hit me up in a PM but from what it looks like is the typical "i need cams and an intake manifold" dyno. it looks about right for where your mods are at.

if you get a greddy intake manifold and some like step 1 or 2 cams you'll probably see like another 75hp-100hp. the stock cams and intake manifold are choking you back soooo much.

hope that helps, i was just catching up on my PM's and i just saw yours figured ide post it in the thread instead. glad the aem box worked out for you.

[Flybert]

With 17psi on a gt2871r .64 with no cams, you should be making around 300whp-330whp. My guess is that it's the timing or it's your motor. Have you checked the compression on your motor lately?

[gt3071r240]

Originally Posted by Flybert

With 17psi on a gt2871r .64 with no cams, you should be making around 300whp-330whp. My guess is that it's the timing or it's your motor. Have you checked the compression on your motor lately?

I Agree check the mechanical condition of the engine and if all is good you I would look at your timing map. I made 304whp on 16psi with the 3071r .64a/r stock im, stock cams with a shitty safc tune. . I would expect to see higher numbers than that, you are definetly gonna pick up some hp by putting some cams in and a greddy intake manifold also.

[Papo240]

Originally Posted by gt3071r240

I Agree check the mechanical condition of the engine and if all is good you I would look at your timing map. I made 304whp on 16psi with the 3071r .64a/r stock im, stock cams with a shitty safc tune. . I would expect to see higher numbers than that, you are definetly gonna pick up some hp by putting some cams in and a greddy intake manifold also.

I also agree im pushing 280whp @ 11psi with a 20G (top mount), 750cc injectors, stock everething with a SAFC

[vrooompssssht]

no real help, but thats really low

my friend did 252whp, 230tq on a dynojet

oh.. and recently at 260 on dynapacks

sr20 redtop
safc
gt2871r, 10psi
greddy fmic
trust dp/exhaust
stock turbo elbow
megan (LOL) manifold

[RBS14]

Post up your timing map. Until we see it its all guesses. ALL of your power in a tune is in the timing.

[Id RaThEr DrIfT]

k i just went out to check my compression and i got 195 195 195 200 my last motor was 160 /155 all across so i was supprised by my comppresion numbers on this motor ... k but i put the spark plugs back in and so on turned the car on and it was ideling ruff so im like wtf! right... i check the coils dissconect the plugs one by one and my second one is out its not the coil though cause i swapped coils and its still #2 .. I'm thinking its the wiere, so now im trying to figure out why that went out by checking comppresion? .. haha were to get one?


how can i post up the graph? if my laptop doesnt have internet? i just have the aem on there nothing else .... any other way?

[Id RaThEr DrIfT]

Originally Posted by S14DB

Hook the 2 step up to the clutch switch.

hey what's up man how would i do that?

[vrooompssssht]

Originally Posted by Id RaThEr DrIfT

. i check the coils dissconect the plugs one by one and my second one is out its not the coil though cause i swapped coils and its still #2 .. I'm thinking its the wiere

Could also be that that cyl's injector isnt working, check for actual spark from that coil, and for 12v at the injector plug for that cyl

[S14DB]

May want to hook up the VSS and install it this way.

http://forum.aempower.com/forum/inde...ic,2186.0.html

Standard way is to wire the clutch switch as an input and use that to turn the 2step on and off. Looks like you have a S13->S14 hybrid. I won't even try to figure out the pinout. Look in the aplication notes for your ems model.

To get the map. Open up the timing map(table veiw) and Hit 'Print Screen' then go into Paint or Photoshop and hit paste in a new window and save the image.

Do you have the latest firmware and AEMTuner?

[Wykydtron]

Infamous Coolant Temperature Sensor out? X_X You never know... That could throw off an engine's timing. *scratches head* You can't rule out every variable!

If the ECU reads -80 or 380 degree's... lolol, you'd understand how it would wack the timing.

[S14DB]

Originally Posted by A-Tech_Weapons

Infamous Coolant Temperature Sensor out? X_X You never know... That could throw off an engine's timing. *scratches head* You can't rule out every variable!

If the ECU reads -80 or 380 degree's... lolol, you'd understand how it would wack the timing.

EMS only uses the coolant temperature for starting.

[TurK]

i put down 253whp and 250tq with the stock t28 stock injectors stock ecu. you should be making way more.

[Id RaThEr DrIfT]

Originally Posted by S14DB

May want to hook up the VSS and install it this way.

http://forum.aempower.com/forum/inde...ic,2186.0.html

Standard way is to wire the clutch switch as an input and use that to turn the 2step on and off. Looks like you have a S13->S14 hybrid. I won't even try to figure out the pinout. Look in the aplication notes for your ems model.

To get the map. Open up the timing map(table veiw) and Hit 'Print Screen' then go into Paint or Photoshop and hit paste in a new window and save the image.

Do you have the latest firmware and AEMTuner?

thing is my speed sensor isnt working so i can boost while im at a stop like a 2 step but since it doesnt read mph i put it to set off at 2 mph but obiously it never reads 2 pmh so it it dossent diss activate .. so it wont let me go past the rev cut/ fuel cut