My car is a sohc turbo running 15psi it drops to 13 psi after about 5000rpms tuned with a Turbo Link as seen in the Edelbrock turbo kit. The turbo link is simply to slow at processing to keep up..

The car could be tuned well in 3rd gear and above, but in the shorter faster moving gears such as 1st and 2nd the Turbo Link just can't keep up, my A/f ratio in 1st and 2nd is closer to a N/A car then a boosted one (14:1). But that was as good as they could do, 2-3 hours were spent retuning it.

Basically I hoping as was my tuner that since 1st and 2nd gear go by so quickly we can get away with having a lean A/F ratio the car didn't detonate on the "dyno" but that doesn't mean to much. I am running as about a 50/50 mix of 93 and 100oct.... Previously my EGTs have been very low I have recently broken the gauge so am not sure what there like now.. But I doubt they are very hot in the lower gears as they never used to be.

Driving impressions are it seems to go fine apart from 2nd gear where it will lag as it ramps up into boost, it starts to take off then sort of waits {a bit like turbo lag} untill full boost is reached and then it blasts off. I guess what is happening is the Turbo Link is winding its self up to work during the spool up perhaps it cuts the ignition timing or something while it waits.. I'm not sure, I'm only talking about a half second of hesitation. I'm sure it can't be fixed without going to another mangagement system. The T L probably has always done this, it just now that I am running the bigger turbo and more boost that the hesitation to in 2nd is noticeable.

Made 180kws on slightly less boost then last time so its a good little engine, wasn't smoking at all.


Appreciate any insight

 

sounds like your trying to street tune on the dyno. A more accurate way would be to take the wideband out to the street and see what's going on. In most cases, you will have two different results.

On the other hand, hesitation in 2nd gear on the street until full boost is reached does sound like a problem. I doubt this problem could be linked to a lean burn. Running lean will spool the turbo quicker and should give you more perfomance. Unless you have a knock sensor and it's pulling timing as a result of detonation from being lean.
Does this happen in all gears? Maybe it just feels like it's lagging because boost is not building fast enough like it does in higher gears.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stewie &raquo;</TD></TR><TR><TD CLASS="quote">sounds like your trying to street tune on the dyno. A more accurate way would be to take the wideband out to the street and see what's going on. In most cases, you will have two different results.

On the other hand, hesitation in 2nd gear on the street until full boost is reached does sound like a problem. I doubt this problem could be linked to a lean burn. Running lean will spool the turbo quicker and should give you more perfomance. Unless you have a knock sensor and it's pulling timing as a result of detonation from being lean.
Does this happen in all gears? Maybe it just feels like it's lagging because boost is not building fast enough like it does in higher gears.</TD></TR></TABLE>The tune cannot be made any better as the processor is to slow to react the tuner said its two steps behind of whats actually happening.... No the hesitation is only evident in 2nd what happens is say at 3500rpms where you can plant it and it will spool up pretty quickly instead of surging forward as the boost climbs up it begins to take off, then sort of hesitates but continues at the accleration rate it had from the initial boost pressure the hesitation is for only a second at most. Once full boost is reached it blasts off. Perhaps a misfire while the processor is trying to catch up??

Thanks for your input

 

try bumping up the timing a little bit slightly before and through the hesitation, this should probably fix it. A lot of people don't run enough timing out of boost and it can cause the problems you described

 

Dude try to stay out of boost, 14:1 damn...thats kind of scary.

 

find a different tuner

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtaaak y0 &raquo;</TD></TR><TR><TD CLASS="quote">Dude try to stay out of boost, 14:1 damn...thats kind of scary. </TD></TR></TABLE>

I am running relatively high octane gas with the 50/50 blend of 93 and 100ll. I am not staying in those gears for very long at all, it is the heat that will cause something to melt or preignite the mixture. I am hoping someone with experience can give there input.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by toolowsol &raquo;</TD></TR><TR><TD CLASS="quote">try bumping up the timing a little bit slightly before and through the hesitation, this should probably fix it. A lot of people don't run enough timing out of boost and it can cause the problems you described </TD></TR></TABLE> I suggested this the tuner didn't want to was probably a little scared because of the A/F ratio. I think if that is the case I can live with the hesitation, I just am worried about the lean condition. Cheers

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MusclecarGuyhasHonda &raquo;</TD></TR><TR><TD CLASS="quote">find a different tuner</TD></TR></TABLE> They are perhaps the best we have in the country, its the tuning device not the tuner. Turbo Link

 

UP

 

Toon3rz???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbozxi &raquo;</TD></TR><TR><TD CLASS="quote"> They are perhaps the best we have in the country, its the tuning device not the tuner. Turbo Link </TD></TR></TABLE>

then get a better tuning device, 14:1 is seriously dangerous even for short term on a boosted engine. it may be fine for a while, but then you will get that one bad tank of fuel and that's all she wrote. and not every tank of fuel from the same fill up station will be the same quality all the time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbozxi &raquo;</TD></TR><TR><TD CLASS="quote">
The car could be tuned well in 3rd gear and above, but in the shorter faster moving gears such as 1st and 2nd the Turbo Link just can't keep up, my A/f ratio in 1st and 2nd is closer to a N/A car then a boosted one (14:1).Basically I hoping as was my tuner that since 1st and 2nd gear go by so quickly we can get away with having a lean A/F ratio the car didn't detonate on the "dyno"
</TD></TR></TABLE>
You have just described the perfect recipe for disaster. The Edelbrock system does not work properly. Only a matter of time now.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by earl &raquo;</TD></TR><TR><TD CLASS="quote">
You have just described the perfect recipe for disaster. The Edelbrock system does not work properly. Only a matter of time now.</TD></TR></TABLE> I should add I have only had these problems after exceeding 12psi for Edelbrocks sake. Before then it was pretty good, basically any other decent tuning device is better though. So I take it you guys think I'll melt something in the lower gears? I'm not sure if detonation would set in that quick would it?

 

????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by earl &raquo;</TD></TR><TR><TD CLASS="quote">
You have just described the perfect recipe for disaster. The Edelbrock system does not work properly. Only a matter of time now.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbozxi &raquo;</TD></TR><TR><TD CLASS="quote"> I should add I have only had these problems after exceeding 12psi for Edelbrocks sake. Before then it was pretty good, basically any other decent tuning device is better though. So I take it you guys think I'll melt something in the lower gears? I'm not sure if detonation would set in that quick would it? </TD></TR></TABLE>

If you are going from stoplight to stoplight, your engine might start to get hot. You cant richen it up anymore?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtaaak y0 &raquo;</TD></TR><TR><TD CLASS="quote">

If you are going from stoplight to stoplight, your engine might start to get hot. You cant richen it up anymore? </TD></TR></TABLE>Nah not without making it crazy rich topend, I glazed a bore I am pretty sure with my previous engine...

 

man id rather run emanage than that

ditch it man , if its not good enough to "keep up" than its worthless.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hella_JDM &raquo;</TD></TR><TR><TD CLASS="quote">man id rather run emanage than that

ditch it man , if its not good enough to "keep up" than its worthless.</TD></TR></TABLE>Its a lot of money though and the car goes pretty well its definitely seems fast. I may look into microtech..

 

**** id look into uberdata or hondata....tried and true

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbozxi &raquo;</TD></TR><TR><TD CLASS="quote"> I should add I have only had these problems after exceeding 12psi for Edelbrocks sake. Before then it was pretty good, basically any other decent tuning device is better though. So I take it you guys think I'll melt something in the lower gears? I'm not sure if detonation would set in that quick would it? </TD></TR></TABLE>

Why don't you just not run 12 psi. If the TL worked at say 8 psi, just leave it there. Dial back the boost before you destroy your motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stewie &raquo;</TD></TR><TR><TD CLASS="quote">sounds like your trying to street tune on the dyno. A more accurate way would be to take the wideband out to the street and see what's going on. In most cases, you will have two different results.
</TD></TR></TABLE>


depending on what type of dyno hes tuning on will be the true answer for that.


if its a dyno jet then yes take it out and street tune , if its a steady state dyno than no tune the car on the dyno, no need for a street tune it can all be done on the dyno.

 

deffinatly get something else.... with the aem ems we have made over 280hp on the edlebrock kit... that car wouldnt run for **** with the edlebrock "management" stuff... switched to some 750cc injectors and the ems.. world of diffference

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDogg &raquo;</TD></TR><TR><TD CLASS="quote">deffinatly get something else.... with the aem ems we have made over 280hp on the edlebrock kit... that car wouldnt run for **** with the edlebrock "management" stuff... switched to some 750cc injectors and the ems.. world of diffference</TD></TR></TABLE>

i agree get some other form of managment ems,hondata,autronic ect

 

Looks like I'm going to shell out for a chipped ecu there version of uberdata that and some 550cc injectors should have me smiling again. Thanks for your responses it is a dyno pack BTW.