My Dyno Pics / Vids

Maxx Mazda

Contributor
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Stock P5
Got the Haltech dyno tuned yesterday. First pull of the day was like 130WHP with solid 10 AFR's and timing more retarted than the guy in that picture getting chased by the rally car. ( I had it set this way for saftey till I hit the dyno.) So I had 2 sessions, these are the pics / vids from the first one. Next week we tune for 18psi. With some MAD advance on the timing and some adjustment of the fuel map, I put down 182WHP and 182 WTQ on 0.45 Bar (7psi) which is something wicked for that much boost.

So we upped it to 10psi and I dropped 219WHP and 220WTQ! (yippy) Ya, that's at the wheels on only 10psi. So, it can be done folks. Stock SRT-4 territory on only 10psi with a teeny turbo. I can't wait to see what this thing will do on 18-20psi, and then again with race gas. So, we made almost 100WHP just by tuning. $/hp ratio on this one was very good. The guy tuning my car was Reg Reimer. He's a bit of a tuning ledgend, mostly known for 1000HP+ Supras around here, but I was priveledged to have him work on my car.

Keep in mind I built this whole car with my dad in my garage. Thanks to Dana for the rock solid bottom end.

I ran it up to 7400 RPM a couple times but the FS just doesn't seem to like it. It does respond REALLY well to alot of timing, but the long stroke of the FS makes for some astronomical piston speeds at that high of an RPM so for any of you looking to raise you rev limiter there's really no point. My power peaks around 6200RPM, so I'll shift at 65 and call it a day. I quit doing my last few dyno pulls around 7 grand or so.

The results from tuning are evident on the street. It's like a whole new car. Pulls SO hard at only 10psi, I think 18 will be a bit much. (Then again, is there such a thing as too much? (thumb) )

Anyway, on to the pics and vids. I'll post some more after my next "big boost" session. Laterz!

7psi:

http://www.youtube.com/watch?v=G3paFZDvIlc

10psi:

http://www.youtube.com/watch?v=FRAm0B6CMrs
 

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That manifold is killing you, man. It's time to man up and get a proper setup if you are going to invest in all this tuning.
 
pluto316 said:
That manifold is killing you, man. It's time to man up and get a proper setup if you are going to invest in all this tuning.

Its not the manifold its the turbocharger, time to go bigger now that you have

a more broad powerband. You are going to max out that little t3 quick!!
 
Yeah I had 219/224 with 10psi too and ran side by side with SRT4s stock...the new ones.

Having fun ha?

Your power is dropping because of either your head is stock (no P&P) and/or the trim of your turbine. You need to flow the head which is very restrictive. That will be the key. Port it and you will see that line still going up and straight for up to 8000rpms.

Im keeping mine stock for a while, these tend to swallow big bucks.

Nevertheless, those are real nice numbers!!! I have ran the T3 up to 16psi up to rod limits...

Now its time to take videos on the street loosing traction on 1st and 2nd gear.
 
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funktownp5 said:
Its not the manifold its the turbocharger, time to go bigger now that you have

a more broad powerband. You are going to max out that little t3 quick!!

Explain to me how at 10psi he is out of the effency of his turbo, and how a larger turbo isn't going to be cripped by a log-style manifold.

FOR BONUS POINTS explain to me the problems with that wastegate setup.
 
pluto316 said:
Explain to me how at 10psi he is out of the effency of his turbo, and how a larger turbo isn't going to be cripped by a log-style manifold.

FOR BONUS POINTS explain to me the problems with that wastegate setup.
I didnt say that he was out of the turbos effiency, although a small turbine(i

dont know the size of) coupled with a small compressor can cause excessive

backpressure and hurt effiency. Also log manifolds are tried and true, you dont

have to have an equal length/pressure manifold to make power. Last i dont

know exactly what you are talking about with the WG placement, as long

as the user is not seeing boost creep/spike i dont see a problem.(thumb)
 
Thanks for all the comments guys! It's a T3 60 Trim, not sure of the A/R's I'll look tomorrow I forgot them. I had the turbo rebuilt with Turbonetics Stage 3 wheels though, so it moved the compressor map up a touch to about 19-20 psi for my engine. (Stock T3 maxes out at 18.)

Not sure what Pluto is on about with the log mani and WG placement. I got no bosot creep even on my bad tuned 17psi, so the WG setup is alright as far as I'm concerned. And log mani's are proven true to give the best response. Plenty of guys make big numbers on log manis, an equal length is not needed unles you're running a split turbine housing T3 or something. (Idgrasil can probably chime in on that.)
 
funktownp5 said:
Its not the manifold its the turbocharger, time to go bigger now that you have

a more broad powerband. You are going to max out that little t3 quick!!

GT2871R is next. That's PLENTY big...
 
That's awesome! I envy you so much and not to mention how anxious I am to see the results at 18+psi. Beautiful build, beautiful car...congrats!
 
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