To turbo or not to turbo my 3.2 ??

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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Thu Jun 06, 2013 5:32 pm

Leon R wrote:EVO - Mitsubishi Evolution

Return is not as critical as supply, but it is important! Or it can end up with an internal leak.


Sorry :) it's like someone calling an Isuzu a jeep...
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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Thu Jun 06, 2013 5:39 pm

Shouldn't leak down sitting overnight. Is their oil in the line from the turbo to the throttle body? You sure it's the turbo? How are your valve seals? Rings?
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Thu Jun 06, 2013 9:03 pm

It did it just after I installed it , started puking into the intake, that's when I pulled it out and tore it down to inspect it.. So now I'm back to figuring out what's goin on... This turbo has a cup that goes in on the exhaust turbin side and I'm thinking its filling up and seeping out when it sits... The seal rings looked good so the only other reasonable thought is the return is choked up... I think the cummins engines only run at 40 psi oil pressure , not that these hx 35's can't run at 60 psi but mines leaking..
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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Thu Jun 06, 2013 10:24 pm

Put a restrictor pill in the feed. About .020-.030". Isuzu runs 60~80 PSI @ 3000rpm. Is that turbo water cooled?
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Thu Jun 06, 2013 11:14 pm

I have a restricter in it , used a carb jet that I machined down ...
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Fri Jun 07, 2013 11:03 pm

I think I got the problem resolved !! I swung by the hydraulic fitting shop and picked up a jic 8 x 3/8" 90* fitting ... That required pulling the crossover and cutting a drill bit down and tack welding it into a nut.. The size difference wasn't much but I think the sharp 90 inside was holding up the flow... Ill see if it puffs out any smoke tomorrow , I really hope that's resolved and I can move on to the next step..

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91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
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Re: To turbo or not to turbo my 3.2 ??

Postby Leon R » Sun Jun 09, 2013 1:41 am

Guys, do you happen to have ECU pin out in spreadsheet format? I want to create spreadsheet with FIC install directions.
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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Sun Jun 09, 2013 3:04 am

Leon R wrote:Guys, do you happen to have ECU pin out in spreadsheet format? I want to create spreadsheet with FIC install directions.


No, but I can get you the pinout. Year/make/model/etc.?
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Sun Jun 09, 2013 11:06 am

Ahh I took my book to work to work on that for mine.. I'm not sure the Haynes will have the correct coinciding colors but it does have the various years.. I'm sure Kickerfox will find something before I get to mine..
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Re: To turbo or not to turbo my 3.2 ??

Postby Leon R » Sun Jun 09, 2013 11:47 am

I have the VehiCross FSM on PDF, I was just hoping that one of you have done the legwork and converted it to the Excell.

Looks like I can grab it right out of the PDF. I can share it once I am done with it.
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Mon Jun 10, 2013 1:00 am

I'm getting irritated , the flex joint is leaking now..!! That's the last thing I expected to have happen.. Guess ill be replacing that section with a solid piece as well...
91 amigo sas toy front leaf- traded off :(
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custom built buggy ffor the dirty stuff

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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Mon Jun 10, 2013 1:26 am

I have faith. You'll bang out the bugs and the end result is always worth it. You got it made compared to the headache I'm dealing with. Remember what I was saying about hooking up my laptop to my RX8's ECU to trick it into thinking the engine is running? Well, I got it!! I have stable control from 0 to over 10,000RPM with no limp mode! The problem was my signal was reversed. I was counting the CAS teeth clockwise. Well it spins clockwise so I had to count them counter-clockwise. Once I reversed the signal the tach shot right to 875rpm *exactly* as calculated. The throttle body now operates from 0-100%. This means I will have drivability as soon as I get the Isuzu engine installed and all plumbed up.
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Mon Jun 10, 2013 11:07 am

That's great news !! Never fails that it's some like that causing the glitch ... Glad you caught that right off the bat :)

I'm hoping I can do the alteration without pulling the manifold, that's really going backwards in the progress...
91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Mon Jun 10, 2013 5:33 pm

So I got bored at work today... Brad, do you think my ECU can track this "modified" CAS pulse?

http://www.youtube.com/watch?v=R1xj_gbQA58
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Mon Jun 10, 2013 8:59 pm

That made me laugh :) I'm pleased to report that I painstakingly was able to cut the flex section out and weld in a piece of solid piping.. Much better sounding and turbo response wise , it's great !! I only had to pull the oil return line , shock , and tire to try to gain access , and twist myself in ways that didn't feel so good while welding... It was so cramped that I set my Helmet off to the side and grabbed a spare lense that I held in my hand so I could stuff my face up in there.. Welding from 2' away isn't the most precise means...

Now I should be back on track with forward progress from here on out... NEXT !!! 8)
91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
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Intake R&R - port and polish

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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Mon Jun 10, 2013 9:59 pm

Holey piston crowns batman! Did you order an FIC yet?
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Mon Jun 10, 2013 10:39 pm

Not yet but soon !! In the mean time keeping boost to a bare minimum.. All I can say is man will it cook when it's done !! Metiforicly speaking of course :)
91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Tue Jun 11, 2013 2:15 pm

Here's the flex coupling that cracked out

Image

Image

I've seen a lot of these used in exhaust setups but now I'm not so sure they're the greatest thing to use..

Image

Here's a current picture of the piping and o2 that I relocated... I took more but photo bucket is showing other pics when I open them...
91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
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Intake R&R - port and polish

Sometimes trying is all you can do, but when you succeed , that's something to be proud of...
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Tue Jun 11, 2013 2:25 pm

Image

Image

Hmm they worked... You can see the new section that I painstakingly installed yesterday

Image

Image

Here's a couple shots of the crossover and tail pipe, the fitment (once installed) wasn't bad but it would have been better to build everything in the amigo...
91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Tue Jun 11, 2013 2:33 pm

Your O2 sensors are still in the wrong place, unless those are old photos.
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Tue Jun 11, 2013 3:11 pm

One off the left bank and the other off the down pipe, and then the two rear ones after the cat... That's about as good as its gonna get.. I plumbed the fifth o2 in on the crossover for the gauge, I could move it over I spose...
91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
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Intake R&R - port and polish

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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Tue Jun 11, 2013 8:12 pm

In that case your right bank fuel trims are being calibrated on left bank a/f readings. If the right bank had a slow injector (for example) the ECU would never know. Same goes if the left bank had a leaky injector the right bank would lean out.

The right O2 sensor has to be placed BEFORE the left bank tees into the turbo inlet. Your wideband gauge needs to be in the downpipe so your reading your total a/f.

Your rear sensors are correct.
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Tue Jun 11, 2013 8:25 pm

I know, you mentioned that before.. Trying to get into the manifold before the y feeds in is not very easy.. It might end up sensing one cylinder more than the other two.. In not sure I will gain much of an advantage...
91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
Four link pics
Intake R&R - port and polish

Sometimes trying is all you can do, but when you succeed , that's something to be proud of...
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Re: To turbo or not to turbo my 3.2 ??

Postby kickerfox » Mon Jun 17, 2013 7:35 pm

We're overdue! 20psi hill-climb or I'm unsubscribing! :P
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Re: To turbo or not to turbo my 3.2 ??

Postby bradzuzu » Mon Jun 17, 2013 8:43 pm

You mean 20 psi crank puke !! Lol I've been noticing something with how the ECM or maybe just the system equals out.. If I let the rpms climb up to 4 grand in 3rd the af ratio will go richer , I gave it a little more throttle and it just pulled nice and smoothly.. I'm thinking its probly fuel pressure needing adaquit signal to enrichin at the fpr.. Doing it that way it pulled 5 lbs of boost ... You going to hate to hear this part but it was with crapy pacific pride gas... I can only imagine go much more this would improve with better gas.. I'm almost wondering if a rising rate fpr would make this setup work without the fic ..
That is a question not a decision :) The timing seems capabal of tuning but not all that fast...
91 amigo sas toy front leaf- traded off :(
2000 amigo sas d44 wagonear 4 link
custom built buggy ffor the dirty stuff

My build up page
Four link pics
Intake R&R - port and polish

Sometimes trying is all you can do, but when you succeed , that's something to be proud of...
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