the red line is my final run, the blue was my first baseline. i picked up a decent amount of power just from the tuning, the boost level wasnt changed.

my gripe, 81mm lsvtec on 14 psi with a t3 60-1. i was expecting closer to 350-375.

my total timing is 17.5*. i started at 16 and kept adding .5 degree per run, the tq kept going up. i stopped adding at 17.5

also, i couldnt get 5k rpms to lean out any more. its right now at like 10.9:1, and you can see i loose a lil power right there from being kinda rich

 

If you couldn't pull anymore power out of it from adding in timing then i'd look into something with the turbo setup. Do you have a proper dumptube setup?

 

the dumptube exits right at the front bottom of my transmission, very close to the reverse indicator light sensor thingy. it was 88* in the dyno if that would make a difference

 

maybe a bigger turbo? thats alotta boost froma little t3, maybe thats y it wouldnt lean out any. i dunno

 

T3 60-1 is not a tiny turbo.......

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lsvtecSIrex &raquo;</TD></TR><TR><TD CLASS="quote">maybe a bigger turbo? thats alotta boost froma little t3, maybe thats y it wouldnt lean out any. i dunno</TD></TR></TABLE> what are you talking about its a T3 housing but it's a 60-1 should be good for 500+ easy. Something is wrong because I have about the same setup with a T3/T4e 57 trim and put down 365 at 14psi. you should be well above that. Check your boost levels if they are falling off.

 

whats your whole setup?

at 14psi i was making a little over 400hp with sc6152e

 

Yeah, need to see what the whole setup is.

I'm thinking your exhaust may be too small, but that's just from looking at the numbers.

 

Adjust your valves, and change the plugs. What size exhaust are you using? Vtec is engaging right? Check with a test light to see if its coming on, that might be why your running rich. You could lose 75-85 whp just from no vtec. In my H series a few years back it was showing the same symtoms and no vtec at 18psi i went from 480 tp 570 whp w/ 60-1 Good luck!!

 

Actually by looking at your graphs is the vtec coming on @ 4800?

 

jeeze i didnt see the 60-1 sorry chill out

 

try to run ur dump tube under the oil pan.
u say u kept on making power with more timing advance? try to add a bit more timing to the motor, but only do it after ur peak torque (so u have less risk of detonating) around 6.5K to 8K. is the motor stock or does it have pistons/rods?


also, the graph is in STD, so in SAE ur probably making around 310-312whp.

 

why were you guys only taking it to 7.5k?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ramrod &raquo;</TD></TR><TR><TD CLASS="quote">why were you guys only taking it to 7.5k?</TD></TR></TABLE>
maybe because the car wasnt making power that high.

 

there is an issue somewhere. on my B18C1 81mm 9:1 bottom end with ITR head I made 401whp 260wtq on 14psi and pump gas. what manifold are you using and what IC?

 

that did end up kinda low. somethings not right. I'm the next on the list to get the LS vetec numbers

Komat
blackeg
then me

 

if it was indeed a problem with the turbo breathing in wastegate dump air, how much would he expect to loose?

 

i don't think the wg dump is the issue. i think he's missing near 100hp. you should tell us more about the setup. i would guess boost leak?

 

this is where im gonna get mad.

aebs sleeves, 81mm b18a
wiseco dish ~9:1
eagle rods
aebs studs
b16 head, stock valvetrain, gsr cams, stock camgears

hotrex equal lenght manifold
t3 60-1 with a .63 exhaust
3" downpipe with dmh cutout under my steering rack
jrc 8" intercooler, 2.25 and 2.5" pipes
greddy type s
hallman mbc
....


it takes a while to spool up, im hitting full boost right around vtec, maybe 5200. its holding the boost until i let off

i stopped at 7500 because its past my peak power, and my stock tach is off.
im running 16.5* from 6k-6500, and 17.5 from 6500 to redline, after my peak tq.


im mixing coolant and oil somehow, and im not sure where, also my compression is 180 in 1,3,4 but #2 is like 160

 

do you know the exhaust wheel size? Just because it's a .63 housing, doesn't mean the actual wheel is large. too small a wheel will cause back presure buildup and not allow good flow of the exhaust gas.

example:
I have a fully build D16motor
I had a SC50BB turbo (precision) it had a .63 housing. We ledt the WG springs at stock and turned off the boost controller for initial tunning. That gave me about 7.5lbs My car woudl spool 7lbs @2700rpm and were were having detonation at 6k due to backpressure build up. Now a lot of other cars here are able to make great power with the SC50, but apparently my engine flowed too much for it so I ended up moving on to a GT30R. I'm still installing it, but it was the middle ground I needed between the SC-61(big one) and the SC-50 in size. I used the .76 exhaust side on it. So my point is if the wheel is too small that coudl be your whole problem, no mater how big the compressor side is the gas still ahs to exit the motor. backpressure causes power loss and can lead to detonation if it's too excessive.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">this is where im gonna get mad.


im mixing coolant and oil somehow, and im not sure where, also my compression is 180 in 1,3,4 but #2 is like 160</TD></TR></TABLE>

THis could be your problem, do you have a catch can? heard the pressure build up can be so great it will go past your rings. If you are mixing coolant and oil then you probably have a cracked sleeve, or busted headgasket. Do a leakdown test on the motor.

 

Have you considered the smallish JRIC as a culprit with regards to spool time? Are you noticing a 'washed' look to the plug where you're getting 160psi comp.? If you are in fact losing compression (blown gasket?) in one cylinder while static, imagine what you're losing when you're at WOT/full boost, in esence leaving you one cylinder shy of full power. Have you performed a leakdown to confirm cylinder leakage?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTC_CiViC II &raquo;</TD></TR><TR><TD CLASS="quote">Have you considered the smallish JRIC as a culprit with regards to spool time? </TD></TR></TABLE>

Actually, a smaller ic should decrease spool time versus a large ic.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by noboostedEGo &raquo;</TD></TR><TR><TD CLASS="quote">

Actually, a smaller ic should decrease spool time versus a large ic.

</TD></TR></TABLE>

Depends on the scale of which you're talking, but a small enough IC will act no different than trying to send xxpsi through a stock-like exahust. In fact I know of an individual who used an old intercooler I used on my Civic, only he was using it on a 2.4L with a much larger turbo and simply couldn't generate the desired boost off the WG till he switched to a larger unit.

Now I've seen JRIC's and they are *small*.. couldn't hurt to swap front mounts and feel the difference.

 

my jrc is a large intercooler, core is like 28x8x3. if i was getting pressure drop, it wouldnt be an issue anyway because my boost gauge reads off the manifold after the intercooler.
my sleeves are not blown or cracked, they are aebs, have never seen more than 325 hp and have maybe 7k miles. they dont appear to be sunk either.

i did a leakdown, its ****. i will presssurize the cyls to 100 psi and i can hear it leak out within a minute. this is with the piston at both tdc and bdc.

the catchcan picks up some sludge from mixing, but not too too much. when i change my oil its not brown or anything, but it has some coolant in it. i havent let it go more than 2k miles on the same oil because i know it degraded it with coolant in there.

exhaust turbine should be the common stage 3 wheel and .63 housing