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> I am just going to run low boost. . . yea right!, A warning for anyone who wants to boost a 5sfe
post Jun 8, 2017 - 11:25 PM
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HardHead93

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I put in a nice 3 point front strut bar. I heard when you link the 2 strut towers together it really improves the cornering.


I went with the Beatrush brand and I am really happy with the look. I can't wait to see how it handles.
post Jun 10, 2017 - 1:53 AM
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HardHead93

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I took my Celica to the dyno and they did 3 pulls for me. Here are the engine specs going into the dyno:

4th gen 3sgte (stock bottom end)
264 Brian Crower Camshafts (1 degree advanced on intake and 3 degrees retarded on the exhaust)
3 inch custom made intake
SCG-1 Innovate Boost Controller
3 inch catless downpipes
2.5 inch exhaust with Magnaflow cat, Magnaflow muffler, and glass pack resonator
Stock CT15B Turbo
2.5 inch intercooler piping
CX Racing Intercooler
SSQV Blow Off Valve
Koyo 2-Row Radiator with stock fans
Stock ECU

See the photo below.



The first 2 pulls were done with the wastegate set to 28% with a 20% gain. This gave the engine 11 psi.

After that we let the car cool down for about 20 minutes and then I turned the wastegate up to 44% for the last pull. This gave the engine 13 psi.

I felt I left about 10-20 psi on the table. I could have added more gain to try to get 1 or 2 more psi. In the end I did not want to push it and chance damaging the motor. PrimeMR2 told me it is safe to run about 14 psi on 91 octane and 17 psi on 93 octane. For these dyno pulls I ran 91 octane with some STP octane booster just as a safety precaution.

These are pretty good numbers. A completely stock motor is rated at 256 hp at the crank (approx 218 hp at the wheels) at 13 psi. If I am getting 238 hp at the wheels with the same boost then that works out to approximately 280 hp at the crank. A gain of 20 hp at the wheels with some basic mods and a stock ECU is pretty good.
post Jun 10, 2017 - 5:06 PM
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Box



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I think tuned for 93 octane you'd be good for at least 300 at the crank.


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1996 Pontiac Firebird Formula hardtop 6-speed
post Jun 10, 2017 - 9:23 PM
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HardHead93

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QUOTE (Box @ Jun 10, 2017 - 6:06 PM) *
I think tuned for 93 octane you'd be good for at least 300 at the crank.


The stock ECU is good for this car. It has fuel maps up to around 20-21 psi. It could use a good camshaft gear tuning on a dyno. The you are right 93 octane with 1-2 psi will get me there easy. I have been using 91 and octane booster but who knows how much it really boost octane or how well is evenly mixes in the tank.
post Jun 10, 2017 - 9:29 PM
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Bitter

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If it's a return style fuel system then it mixes quite well actually!


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post Jun 13, 2017 - 7:11 AM
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rentaspace



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Makes me want to buy a set of cams and install them to my Caldina... If only I had the money lol...


--------------------

Celica Progress

------------------------------| White '94 Celica | Bought 11/05/12 | Sold 12/05/15 |------------------------------
------------------------------| White '02 N-Edition Caldina | Weekend Car |------------------------------
post Jun 16, 2017 - 5:10 PM
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HardHead93

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I forgot what forum I was reading it on, but there was someone who did a Megasquirt standalone on his 4th gen 3sgte. Once he got it tuned he picked up 40-50 more hp to the wheels with an all stock motor. This was done with a mild tune as well. I guess the stock ECU is tuned very very conservatively and I heard a lot of OEM ECUs are like that.

I have a Megaquirt DIYPNP ECU laying around from my 5sfte build but the pinout type is wrong. I have a 76 pin on it and I need a 122 pin. I got in touch with DIYAUTOTUNE and they sell a kit that converts the ECU to a 122 pin. The kit is the DIYBOB-N122 and the great thing is it only costs $89. That is way better than buying a whole new ECU. I will break the soldering iron back out and get to work. I love that once I get this ECU tuned it will open up a whole new set of options for upgrading the motor down the line.

This post has been edited by HardHead93: Jun 16, 2017 - 5:10 PM
post Jun 16, 2017 - 7:53 PM
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Box



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Stock ECU tune is always conservative, gotta make it last through that warranty period. My brother's Genesis 2.0T gained 50 hp just from having the ECU uploaded with a new tune. Pretty much every car I can think of that's boosted from the factory, rather that's from a turbo or a supercharger, benefits greatly from just an ECU tune.


--------------------

1996 Pontiac Firebird Formula hardtop 6-speed
post Jun 16, 2017 - 8:22 PM
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HardHead93

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I am excited to see what power is hiding in this motor. To keep things clean on the forum, I will use my DIYPNP thread to document what I am doing. It is at the following link:

http://www.6gc.net/forums/index.php?showtopic=96250

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