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Ed With Wade 1673 Not Making Power. Cant Find The Cause????? 

 

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 Post subject: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 8:19 pm 
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Location: geelong
VIC, Australia

Hi all,

Just putting this one out there to see if anyone has any idea's as to what might be going on. Here are a list of mods.

Pacemaker 4499's.
2.5 inch mandrel bent exhaust.
Thermos
El Ecu and J3 with advanced timing
BBM
Gas Research Throttle Body 480
3 inch intake
ef airbox with high flow filter
Ported and shaved head with xr6 valves
Wade 1673
Adjustable Vernier
Manual

Have checked pretty much everything. Has plenty of fuel, base timing is correct. Cam is dialed in correctly. I have even tried different tunes in the ecu which had minimal effect on power (dropped about 5kw with standard xr6 tune).

Unless I have been supplied a 1636 by mistake I'm really scratching my head to find out what is going on with this car.

Dyno sheets are below. Sorry about the quality but had to take them on my phone as I dont have a scanner atm.

Image

Cheers
Matthew
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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 8:38 pm 
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Age: 26

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Ride: 92 EB s

Location: DORRIGO
NSW, Australia

Checked for vaccume leaks.
Is the engine running well, using a normal amount of fuel.
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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 8:46 pm 
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Joined: 8th Nov 2004

Location: geelong
VIC, Australia

Yes checked for vac leaks. Engine is actually running really well smooth idle, no knocks, dosent use oil or coolent fuel use is good too.
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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 8:53 pm 
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Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

what power were you expecting??
what was the power before??

ive seen some engines with similar cams only pull 120 rwkw and ive seen other engines that were std pull 130rwkw..
it all comes down to the base engine started with, some engines are what we call freaks and others are just avarage and also some dyno's read lower than others..
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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 8:56 pm 
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Ride: Territory SX TX

Location: Townsville
QLD, Australia

Put the timing back to where it was before the EL computer was in it. When I did the BBM and EL Ecu conversion with the thermo fans etc, I didnt touch the timing at all and mine goes like the powers of piss.
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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 9:17 pm 
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Location: geelong
VIC, Australia

To be honest Troy I was hoping for around the 150's. I have not run the car on the dyno before the mods unfortunately circimstances prevented that. I know what you are saying about average and freak motors.

As for the base timing. I would think it would ping its head off with an extra 10 degrees in ignition. I have had the timing up and it went very well but would ping too much so I decided it would not be overly reliable.
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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 9:46 pm 
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Age: 54

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Ride: AU2 XR8 ute & 91 EA bitsa

Location: Melbourne
VIC, Australia

Is your BBM switching at 3800rpm? I had a similar situation happen when my car was on the dyno. The vacuum hose to the switch the runners wasn't hooked up properly when I installed the engine.

 

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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 9:51 pm 
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I was thinking it could be a BBM issue as the curve really dips and goes nowhere. Ill double check that when I get a chance.
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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 9:53 pm 
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Ride: EL Fairmont, VFR400 racer

Power: 144 rwkw

Location: Melbourne
VIC, Australia

From your list of mods, I'd be expecting 140rwkw...or more.

Maybe exhaust system may be restricted.

 

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phongus = Post whore 2006
EL XR6 motor, EL ECU + J3 chip, WADE 1673 Camshaft, 3" S/S intake, Pacy 4480, 2.5" Hi flow cat, 2.5" Lukey exhaust.
Max Power = 144.6 rwkw (03/05/2008)

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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Tue May 10, 2011 9:55 pm 
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I have checked the cat which is the only thing I could see holding it back exhaust wise but all was good.
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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Wed May 11, 2011 10:38 am 
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When you say "base timing is correct" - exactly how and where is that set to?

I was the same as dazza027 with my ED + EL ECU etc. - ie. I ended up running it with the dizzy at the same position as when the ED ECU was in it.

Setting it to the ED timing cover's TDC mark in diagnostic mode with a timing light - which was what I THOUGHT was the correct procedure for the EL ECU - resulted in really dead performance...

Frustratingly and as strange as it sounds I can't remember (getting old I guess) whether that was actually to the 10 degree mark in diagnostic mode or whether I just used the physical position marking I had made on the dizzy when it had the ED ECU in it.

Also the manifold not switching from long to short at 3800rpm will absolutely make a HUGE difference.

 

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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Wed May 11, 2011 11:49 am 
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Borrow a stock throttle body from some one and take the GRA one off.

 

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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Wed May 11, 2011 12:12 pm 
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Ride: EF XR6 Wagon, AU2 XR6 VCT

Power: 148 rwkw

Location: Auckland
New Zealand

It appears that the BBM is working correctly, as the dynoplot shows the little dip at about 4000rpm that you normally get on transition from long to short runners.

I don't understand why the dynoplot stops at 5000rpm. Would it show more power if the run had extended to redline? With that cam and those mods, your power should be peaking at about 5500rpm. My EF with similar mods (milder cam and no porting, but no cat) peaked at 148 rwkw at 5200-5350rpm BEFORE the J3 chip and with AFR of 11.9 (rich) at that RPM. I know numbers vary dyno to dyno, but I would have expected you to show at least 140-145, and possibly over 150 rwkw at about 5500rpm. And mine is through an automatic, while yours is manual, which transmits more of the power to the wheels, so yours should show a better rwkw.

Are you using the AU MLS head gasket (extra compression)? Did they measure AFR? Is your O2 sensor stuffed, so over-fuelling via the fuel trims? Otherwise, it makes no sense. That looks to be a stout, well-balanced street setup.

 

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95 EF XR6 wagon, 17" FTRs, DBA, QFM, KYB/Koni, AU block, ported EF head, SS Inductions, Territory intake, MLS gasket, milled, Franklin RH24B cam, Coby headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip

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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Wed May 11, 2011 6:01 pm 
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I saw those dips - and actually took them as a possible sign the BBM wasn't working - ie. engine not doing what the ECU expected at that point (to me the graph lines fall back a bit and then resume). But if it's been physically confirmed as switching then it's working...

Like we said - the base timing needs to be same as it was for the ED ECU - if it's been set up differently then that's probably the issue right there.

 

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 Post subject: Re: Ed With Wade 1673 Not Making Power. Cant Find The Cause?????
Posted: Wed May 11, 2011 8:23 pm 
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Ride: ED XR6, AUII XR8

Location: Melbourne
VIC, Australia

Greenmachine wrote:
I saw those dips - and actually took them as a possible sign the BBM wasn't working - ie. engine not doing what the ECU expected at that point (to me the graph lines fall back a bit and then resume). But if it's been physically confirmed as switching then it's working...

Like we said - the base timing needs to be same as it was for the ED ECU - if it's been set up differently then that's probably the issue right there.


Why should he have 10deg BTDC when an el ecu has timing set to run at 0??
Since you have a chip though you can just add more timing on that though and see if it makes a difference.

 

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