Author Topic: Data logging & understanding the stock ecu. Evolution of the TBI Monster to Mpi  (Read 60974 times)

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cyberquest

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wow seeing the same car with results on paper to compare them you can really see a difference.

but......now you can now longer be my TBI hero.  :'(

great work either way!
1984 Dodge Conquest 58,000 miles, all original.

PSU_Crash

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Very impressive! Even with smoothing factor at 5 that's one of the best looking graphs I've ever seen. Your torque curve is perfect, Comes on hard and holds to redline. Great job!
Sounds like you finally answered MP-Y LOL

Sqr

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I had not noticed it in the street tuning, but the boost held up better and did not tail of like it used to. looks like I could rev it out a little further.

FunkyPhil

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87 Conquest Tsi: 519whp 519wtq 7.09@102--10.95@122
CLICK TO SEE BUILD

DieHARDmitsu

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Good job man!

Are you still running that Hr70 cam?

Sqr

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Good job man!

Are you still running that Hr70 cam?
Yes

FunkyPhil

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Your still not using ignition control correct?
87 Conquest Tsi: 519whp 519wtq 7.09@102--10.95@122
CLICK TO SEE BUILD

Sqr

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Your still not using ignition control correct?
No ignition controle yet. I have most of the pieces to do it.

I did give it another 2 or 3 degrees from what I have been running for a few years. So base about 17-18

so 17 + 33? from the centrifugal advance - 12-15 from the advance retard module. I forget if mine tested at 12 or 15, -12 from the knock sensor = about 25   E85 for fuel.

Sqr

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Injectors are 1200's, duty cycle peaked at 70. Base fuel pressure about 44-45. Having the regulator reference line below the throttle body had me scratching my head trying to set the pressure.   :)

FunkyPhil

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Too bad you didnt get to back the timing off for a pull. Its always nice to reassure yourself that your tune is in the right county. Great job man! Im glad you want that route with the manifold. It shows how much you can improve a setup without a ton of modifications. Stock tstat location, tbi piping, etc. Its really a smart way to approach it.

Your toaster oven makes me want strawberry toaster struedals!
87 Conquest Tsi: 519whp 519wtq 7.09@102--10.95@122
CLICK TO SEE BUILD

cyberquest

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i really admire the way you guys are still thinking of new ways to to improve the cars performance and putting down as much power and ET times as 2jz swapped cars. its just amazing what your able to do with a 30 year old SOHC motor that started life in a forklift...lol.

with the setup SQR is running and like phil mentioned its a much more simple approach to going mpi and cheaper not having to outsource the magna intake and the cost of having it modded to work and having to relocate all your piping. with scotts plug and play standalone and a setup like SQR its really starting to put mpi in the price range a working joe could afford.

keep up the GREAT work!!
1984 Dodge Conquest 58,000 miles, all original.

FunkyPhil

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So your gonna bring that sucker to Branson, right John?
87 Conquest Tsi: 519whp 519wtq 7.09@102--10.95@122
CLICK TO SEE BUILD

Sqr

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It might take me that long to change the head gasket.

What do you guys think, it has been on there since aug 2012. replace it.

Or do a leak down at bdc at 100 psi and see if that shows anything?

Or turn the boost down and wait and see?


PSU_Crash

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I'd do a leakdown for sure. Maybe it shows something ... maybe it doesn't. Even if it tests out fine it would always be in the back of my mind ... waiting for it to come loose. Maybe it's just my builds that do that though :)

FunkyPhil

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Why does it need a HG?
87 Conquest Tsi: 519whp 519wtq 7.09@102--10.95@122
CLICK TO SEE BUILD