do u guys at synapse have a smoke tester to check for boost leaks. even though everything may look connected u can still have boost leaks.

i thinker every dyno shop should have a SnapOn smoke tester to check for leaks. u find leaks withing seconds! best money spent

hows the spool? u have n e pics of the engine bay?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike@synapse motorsport &raquo;</TD></TR><TR><TD CLASS="quote">These weren't the final charts, and the afr was cleaned up more on the streets, but you get the picture. Like dom said, we pretty much tried everything to make power, probably a total of 7 hours on the dyno playing with diffrent maps, diffrent timing values, diffrent afr. We moved vtec all over and witnessed changes in the graph and afr. Checked base timing 3 times, cam timing, etc. Checked the vtec soleniod with a test lamp, checked the intercooler for clogs, boost leaks etc. Even with cars that i have tuned on the dyno that didn't go into vtec we always have seen an increase in hp with increase in boost (up to a point).

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

You checked if the solonoid worked and if it was getting a signal, but you should hear/feel when vtec kicks in. Make a run with the solonoid disconnected. IF, you are low on oil pressure, the opening of the solonoid may create just enough pressure drop to disengage the vtec. Check oil pressure!!!

I hate issues like this. good luck.....

 

it looks like an exhuats and/or boost leak problem

 

my first thought was something actually blocking the engines flow of air, like a rag in the IC or a fallen bolt in a runner of someting crazy.

Also, maybe Vtec is engaging and then dis engaging.


No matter what way u look at the vtec thing, this engine should be making a shitton more torque, even w/ the shitteist mani.

 

i have the same problem. no one can figure out whats going on. even after wasting 7000 dollars.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted k20 &raquo;</TD></TR><TR><TD CLASS="quote">do u guys at synapse have a smoke tester to check for boost leaks. even though everything may look connected u can still have boost leaks.

i thinker every dyno shop should have a SnapOn smoke tester to check for leaks. u find leaks withing seconds! best money spent

hows the spool? u have n e pics of the engine bay?</TD></TR></TABLE>

full boost at 4800 in third gear.










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

You checked if the solonoid worked and if it was getting a signal, but you should hear/feel when vtec kicks in. Make a run with the solonoid disconnected. IF, you are low on oil pressure, the opening of the solonoid may create just enough pressure drop to disengage the vtec. Check oil pressure!!!

I hate issues like this. good luck.....</TD></TR></TABLE>

i said in an earlier post that i could now hear/feel vtec because it was the first time i drove the car on dry pavement. i already checked the oil pressure and it is over 60psi

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Schister66 &raquo;</TD></TR><TR><TD CLASS="quote">you're running 11:1 AFs, when you should be in the 12:1 range and it doesnt appear as though VTEC is engaging. You can see the turbo spool, but quickly die off because there is no high cam or fuel to support it

the spool on that turbo sucks too and it shouldnt with a log...IMO find a new tuner</TD></TR></TABLE>
looks like theres fuel to support it to me...

 

is that a turbo xs BOV (RFL)??? if it is did u guys check to see if it was loosing boost?

Did u guys do a run with filter off the turbo?

DEFINITLY get a new manifold!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted k20 &raquo;</TD></TR><TR><TD CLASS="quote">is that a turbo xs BOV (RFL)??? if it is did u guys check to see if it was loosing boost?

Did u guys do a run with filter off the turbo?

DEFINITLY get a new manifold!</TD></TR></TABLE>

ya we checked the bov and its not leaking. there was no filter on for any of the runs because morgan said that the day before, there was a car that lost 25whp with the style filter i had.

 

did aanother compression check yesteday just to make sure this wasnt the issue the results were: 196,195,196,196. talked to morgan and he told me that once i get my new manifold he would put my car on the dyno for free to see if that was the problem the guys at synapse have been alot of help

 

i made all the pieces to my mini ram today. i just tacked it to check fitment. i cut it apart after i took the pics so i can clean it and weld it up tomorrow. hopefully this will fix my issue.

 

looks good! good luck!

 

i cant wait to see if that was the problem

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dbiker207 &raquo;</TD></TR><TR><TD CLASS="quote">a bent valve would have showen up in the compression check i did.</TD></TR></TABLE>


not always. the car i had the bent valve problem in did not show up in the compression test.

 

 

filter not flowing enough??

take it off and see if there is a differance

 

all dyno pulls were with no filter. i believe its the exhaust manifold that was on it, thats why i built a mini ram. i am going to the dyno as soon as i finish the mani to see.

 

log manifolds FTL. i made 353whp at 16psi today with my miniram. at 14psi there was a 125whp increase over the old 206whp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dbiker207 &raquo;</TD></TR><TR><TD CLASS="quote">log manifolds FTL. i made 353whp at 16psi today with my miniram. at 14psi there was a 125whp increase over the old 206whp.</TD></TR></TABLE>

 

on the dyno
http://videos.streetfire.net/v...1.htm


on the street
http://videos.streetfire.net/v...3.htm


Modified by dbiker207 at 2:54 PM 1/29/2008

 

a little out of subject what traction bar are u using ?

 

The waste gate neck on your log manifold was ridiculously poor in terms of angle and placement. Wouldn't surprise me much if it was churning the air so badly the head couldn't breathe

Congrats on fixing the problem though

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zccrx &raquo;</TD></TR><TR><TD CLASS="quote">a little out of subject what traction bar are u using ?</TD></TR></TABLE>

etd racing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Archidictus &raquo;</TD></TR><TR><TD CLASS="quote">
Congrats on fixing the problem though </TD></TR></TABLE>

+1

 

Wow, I'll be bookmarking this thread. This should get the log supporters to go quiet.