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Hussein's 1998 V70 Xr : The Force Awakens


lookforjoe

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Processed one of the data logs from yesterday, running 1000cc injectors @ 3.8bar base.

Injector duty has dropped to 50-58% (blue tracer in middle of graph) in load range that was creating 90%+ with 650cc injectors :)

AFR's are lean over 10sec mark, however the wagon pulled like a raped ape :lol: -

Treadstone IC is doing a good job with keeping the temps to the TB (approach) at reasonable levels - doesn't rise to over 20º differential until 7300rpm/130mph

4thJuly25Graph_zpsa46cf4c2.png

4thJuly25data_zps06618b8e-1.png

Still need to refine maps - pull a little timing in the mid 5k range, that seems to be peak torque. You can see that timing values are better than on the dyno, even so.

These graphs are from the same time, just haven't edited the data yet.

3rd - boost peak & drop around 5.5 sec - don't know yet if that's a singular event or indicative of something else

3rdJuly25Graph_zpsb6792452.png

3rdJuly25data_zpsd3ad8854.png

3rd -4th timing pull after shift 7.5-9sec range, again between 5,5-6K rpm. Inj duty & fuel pressure tracers (blue & violet) are relatively stable in the center of the graph, which is nice, AFR's getting a little lean up top (13sec - on)

3rd4thJuly25graph_zpsaab11a77.png

3rd4thJuly25data_zpsf765c9b3.png

I have pulled a little timing in that peak range, and increased WOT fueling. See how that goes, I'm driving up to MA CT tomorrow to BMac's, so hopefully someone can shoot a little vid :D

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Have you made any Det Cans so you can listen for these detonation events?

Those were super useful when I was tuning my wagon.

I did, but I removed the sound tube from the block on the last build. Not sure if I can readily reattach to the newer block

These are the current maps:

Fuel calibrated for 1175cc

PTE14kpa1000ccFuel_zps26fbccd1.png

WOT - raised 5K - settings (couple of points each)

PTE14kpa1000ccWOT_zpsb7b35481.png

Timing - as it was from Dyno tune

PTE14kpa1000ccTiming_zpsaa9a8466.png

Revised timing - didn't pull much, see how it goes

PTE14kpa1000ccTimingRevised_zpsb100a62b.

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Well, the wagon is properly fast now. I need new underpants. The video doesn't do any justice to how the car actually feels.

What video? You holding out on us Ben.

Has to be the fast, highest HP Volvo running Turbo Turner now.

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2 pumps parallel can also couse some cavitation...Pumps parallel is not the best way.

Is there not a single pump with some high capacity in the retal?

No tuning, I already knew the injectors would be maxxed out, I just wanted to redo (April dyno) with a working clutch. I didn't make any other hardware changes.

Now that I have access to a reasonably priced AWD dyno, I can make sequential changes & go dyno without costing me a fortune.

I'm not sure I even want to tune on the dyno, unless there is a way he can adjust the loading to reflect the turbo's spool characteristics - going WOT under 3K just brings on the timing pull seen in the plots. I have to press him on that issue.

Picking up the surge tank & extra Bosch 044 this afternoon -

IMG_2606_zps36e47afd.jpg

that's be the next mod with increased ID fuel lines & Aeromotive FPR. Reworking the fuel lines on the AWD saddle tank had held me back from doing the previous idea -

B0F1217D-2A54-4E3D-887D-31878FB09987-234

so I'm glad I held off - the surge tank seems like a much safer approach - pumps are submerged for cooling, won't risk cavitation, etc.

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2 pumps parallel can also couse some cavitation...Pumps parallel is not the best way.

Is there not a single pump with some high capacity in the retal?

The pumps are submerged, how is that going to induce cavitation? I already have had a single high volume external pump setup designed - its in the post you quoted.

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with all the time and money invested in that setup i think you might have been better off coughing up the money for a nice aeromotive inline and running some nice size fuel lines....but hindsight is always 20-20 :lol:

Nice work H, you deserved those dyno numbers more than anyone else and i'm glad your back on track, making headway. I'm sure you got a big confidence boost out of it!

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