- Thread starter
- #241
Radiator installed. Had to trim around the support to clear the PS box.
Builds Project "Devil Frog" - Isaac's '69 FJ40 (1 Viewer)
- Thread starter Devil Frog
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- Thread starter
- #242
I got drive shafts! These were custom made by Tom Wood. As you can see the rear is very short and required double cardan, but a H55 will now be bolt on if I ever upgrade.
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- #243
I had been suspecting that the Warner ISHI turbo I picked up with the kit I bought from Akarilo, was a bit undersized for a 4.0L, being that it came off a 2.3L tbird/mustang. Based on some rough calcs the 3fe will flow 20-25lbm/min at 7psi of boost. That will put this turbo (RHB5) way out of its efficiency zone.
I really need something with a bigger compressor but with a T3 turbine so I could use the manifold. Maybe a T3/T4 hybrid.
I really need something with a bigger compressor but with a T3 turbine so I could use the manifold. Maybe a T3/T4 hybrid.
jstncse
Crawling over something
Check out some of Dougal's post over on 4tbswap.com. He seems to be a wealth of knowledge in the turbo world.
Driveshafts are pretty. How long did the rear end up being?
Driveshafts are pretty. How long did the rear end up being?
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- #245
Blaast Perfomance out of Quebec is going to build me a T4/T3 hybrid:
This will put the 3FE in the sweet spot:
The rear shaft is 18.5" nominal
looks exactly like my drive shafts. my front is from Tom Woods as well. looks great!
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- #247
jstncse
Crawling over something
That is an enormous compressor snail
So what is that, a 46 or a 50mm inducer compressor wheel?
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- #250
neither, it is 58mm
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- #252
No, look at operating point on the performance map, a few posts back; it is optimum for a 4.0L engine with about 80-85% Volumetric Efficiency
Right, I saw them. I guess I was just surprised that the turbo was so large, because the turbo for my 3.9L motor has a 46mm inducer and even that's on the larger side. You've got a different target overall boost pressure though, so it makes sense. I was initially comparing apples to oranges, so don't mind me
Can't wait to see the dyno numbers!
Can't wait to see the results!
Hi devil frog, I'm in the process of copying your turbo setup as it was when Akarilo had it and I'm wondering if you know how he fed the additional fuel injectors? Was there a second fuel pump or did he just T into an exsisting fuel line. Or maybe a fuel pump voltage booster? I read his entire thread and can't remember any answers to those questions. I will be using a T3/T4 like yours Instead of the smaller turbo.
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- #257
I am not sure, I did not buy the electronics from him since I was using a stand alone ECU with bigger injectors. Have you think about doing this too? The only reason I would use the factory EFI + an additional injector controller would be to retain all the smog equipment.
I want to use the factory ecu to keep it simple and to keep the cost down. I've used megasquirt before and it worked good because I was making major changes to my 22rte and the stock ecu could never adapt. I got a good deal on the same additional injector controller Akarilo used and I really like the simplicity of it.
I will be removing the smog equipment too.
Megasquirt is good but it takes time and patience to get running smooth. It was my first time doing something like that and I felt like I was in over my head a few times. I would use it again only if I had to.
I will be removing the smog equipment too.
Megasquirt is good but it takes time and patience to get running smooth. It was my first time doing something like that and I felt like I was in over my head a few times. I would use it again only if I had to.
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- #259
A megasquirt with an wideband 02 sensor will essentially tune itself (as far a AFR) if you get the full version of the Tuner Studio software, but you may still want to dyno tune your ignition timing map. Personally I think using 2 independent systems is more complex, it seems that the OEM system will always be fighting your tuning efforts, especially at partial throttle where it is running closed loop. It would really be hard to isolate discrepancies. Also, you may end up getting unequal fuel flow of fuel to different cylinders if you put additional injectors up by the throttle body, it undoes the advantage of having multiport injection in the first place. The other benefit using a standalone, is you could ditch the OEM mass air flow sensor, those flapper type devices really impede flow, that change alone should net you a few HP.
Did you ever read Akarilo's dyno thread? He only put down 110 whp, with his setup, he suspected that it was due to the automatic tranny and the dyno type. There are a lot of varibles, the turbo size and tuning may have been contributors as well.
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- #260
I picked up this tool a few months back to make my fuel lines, but it worked great for my AN-10 turbo drain as well.
