401 / 427 TBI power. E85 power

[Starwolf]

15psi made more power with the 06 than 25psi did with td05h

 

25psi on 06 made 358

[StarquestRescue]

wait..... this was only at 15psi? am i reading something wrong?

!5 psi to 3500 rpm than the ebc ramps it up higher.

 

The data at the upper right of the data log screen shot is what was happening at 4200 rpm.

[dmyers151]

Awesome.

[TainterRacing]

Is the boost going down it all most looks like as you go up in rpms the turbo is losing boost a bit. I wonder is you are at about the max power the 18g will do. Did you log the ex manifold pressuer?

[Technology]

If you've got an EBC, can you adjust the gain way way down and the opening rpm way down, that way it would come on softer and you wouldn't need the step in boost?

[StarquestRescue]

Is the boost going down it all most looks like as you go up in rpms the turbo is losing boost a bit. I wonder is you are at about the max power the 18g will do. Did you log the ex manifold pressure?

It tails off about 1.5 psi.

1st run 20.4, 2cd 22.4, 3rd, 23.8. 4th,25.0, 5th 26.0

Yes the compressor is maxing out on the higher boost runs.

Ex manifold pressure maxed at about 46 the first run and pegged the 50 psi sensor early on the last runs. It is labeled turbine inlet pressure.

 

 

If you've got an EBC, can you adjust the gain way way down and the opening rpm way down, that way it would come on softer and you wouldn't need the step in boost?

I was using a profect b. I can't tame the settings down any more than they are. I can change the rpm the separate rpm switch trips at. I probably could have brought the boost in sooner and tuned for that. But i wanted to see how it did set up to work good on the street. The dip right after peak tourqe on the last 2 runs was a rich misfire.

[TainterRacing]

Have you eve logged your down pipe PSI??? I am asking as I am wondering what a good reading would be. I plan on working on getting one on my v70 and see what it looks like.

[Technology]

Have you eve logged your down pipe PSI??? I am asking as I am wondering what a good reading would be. I plan on working on getting one on my v70 and see what it looks like.

 

Good idea to measure exhaust pipe pressure, obviously the lower the better. When logging the manifold pressure, do you use some kind of filter to keep exhaust particulates out of the sensor?

[TainterRacing]

No I don’t I have about 6ft of copper tubing I guess some stuff might get in there but it has not yet remember the air is not really moving as there is no place for it to go. Man I just logged the down pipe on my V70 and the down pipe is HIGHER then the intake side... I bet a new ex will help lots!!! I was 5psi on the down pipe at 5500rpms and only 3psi on the intake. I need to work on getting the boost more. I have a 15psi spring in it right now. I Think I can add a 2nd one. But I think be working on the ex I will be able to add boost as well. so I will do that first. Edited April 16, 2012 by TainterRacing

[Mix_67]

What are you using for a fuel pressure and exhaust pressure transducer? all the 0-5V transducers I have found are well over $100 each.

[TainterRacing]

For your air you can use a Map sensor. Edited April 17, 2012 by TainterRacing

[Technology]

No I don’t I have about 6ft of copper tubing I guess some stuff might get in there but it has not yet remember the air is not really moving as there is no place for it to go. Man I just logged the down pipe on my V70 and the down pipe is HIGHER then the intake side... I bet a new ex will help lots!!! I was 5psi on the down pipe at 5500rpms and only 3psi on the intake. I need to work on getting the boost more. I have a 15psi spring in it right now. I Think I can add a 2nd one. But I think be working on the ex I will be able to add boost as well. so I will do that first.

The intake? you mean the intake manifold?

[Mix_67]

I am using a GM 3bar map to measure boost/vacuum on the intake manifold, but I didn't know if there was a similar solution for fuel pressure or exhaust.

[TainterRacing]

The EX you can do the same as the boost just need to use a copper tube I used a 6ft one and just have it a few loops in it as I don’t need it any where near that long. and its nice and cool by the end of it. And you need only a very small hole on the manifold.

 

Yes I am getting at 5500rpms the intake manifold see's 3psi and at the same time the down pipe is seeing 5psi I hope yet to night to test the ex manifold with the setup I have right now.

Edited April 17, 2012 by TainterRacing

[StarquestRescue]

What are you using for a fuel pressure and exhaust pressure transducer? all the 0-5V transducers I have found are well over $100 each.

Yes they are. There are also 4 and 5 bar map sensors out there. Those are pricey as well. Turbine back pressure can be measured through a egr block off plate.

 

Edit, some time slips from the spring.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/2012/001-3.jpg

Edited October 5, 2012 by StarquestRescue

[StarquestRescue]

I have not updated this for a while. Some of you have allready read some of this else where.

 

After the 358 dyno i repaced my modified ( modified for 48 psi base at zero cost) stock regulator with a magnafuel unit. I mounted it low ti get it away from the heat.

 

Aside from being adjustable there was little change in fuel pressure from the modified stock unit..

 

The new regulator did confirmed my suspicions the wally 255 can't feed my injectors at 70+ psi of fuel presssure under boost.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/2012/DSC02927.jpg

http://i237.photobucket.com/albums/ff45/StarquestRescue/2012/DSC02929.jpg

 

I was seeing 12.5 volts at the pump at idle. Amp draw was 6 at 48 psi base, 8.5 under boost. The wally is rated at 9 amps max . A Bosch 044 will dray 14 amps at full load.

 

The stock pump feed wire is about 14 ga and the ground on the car side of the plug about 16 ga.

I installed a circuit breaker at the battery and ran 10 ga to the relay. Up graded the ground side to 14 ga, Should have bought more 10 ga.

 

It looks like the extra voltage will be good for a couple more psi under boost and will definitely be needed with a 044 pump.

 

The little black resistor is long gone as that drops the voltage to the pump even more.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/2012/001.jpg

Edited April 13, 2013 by StarquestRescue

[StarquestRescue]

July 2012

 

Top two lines are boost, bottom two fuel pressure. Solid lines the rewired pump vs dotted lines for the old set up.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/Data%20logs/Fuelpumprewire.jpg

 

If you can read whats in the boxes you will see i picked up about 4-7 psi of fuel pressure.

 

I calculated i should see about 6% to 8% more fuel flow. It looks like i have a little head room to take the base up a little.

 

http://www.gordoneng...on/flowrate.htm

 

My injectors flow 183 lph @ 100% duty cycle. Maybe 165 @ 90% which is about where i loose control of the afr and it jumps rich. The Wally pump is rated for about 200 lph at 80 psi, 208 at 75 psi - friction loses. 2013 Edit, not sure if those flow rates were for the 1050/1800 or 1050/2000 injectors.

 

Funky Phil said.

 

 

 

 

http://img.auctiva.com/imgdata/9/9/6/1/5/9/webimg/551780996_o.jpg

I should log fuel pressure.

Edited April 13, 2013 by StarquestRescue

[StarquestRescue]

By the way the 358 dyno was on a unported marnel head with just over size ss valves and a degreed hr70 cam.

 

Later is the summer of 2012 the engine lost power. A leak down test reveled a bad exhaust valve. The head was replaced with a ported m28 with stock size ss valves.

 

I had initially suspected a bad cat, and it turned out it was bad as well. Testing reveled 20 psi of post turbine back pressure on a aborted run! The back half of the cat was found to be broken up into chunks, and blocking the tail pipe.

 

I gutted the remains of the cat and put the exhaust back on. Post turbo back pressure was now peaking in the 6.x psi range.

 

I put on a different exhaust with a loud bullet type muffler. Post turbo back pressure dropped to 2.2 psi. It is a little loud though.

 

I have some serious boost creep going on now. It will go to about 22-23 just on the spring.

 

But she is making some power, and the cool fall weather is here. i hope to hit the track and dyno again soon.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/Data%20logs/Exhaustcomparison.jpg

[StarquestRescue]

Nov 2012

 

The new set up (head and exhaust change) spools a little later and gives up a little power on the re spool after shifts. It did seem to lunch better with the torque loss. I also lost about 250 rpms off the top of the power band. The 18g 06 was running out of breath a little sooner.

 

Surge was aways a problem with the 18g, So i bought a 20g surge ported cover and wheel.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/2012/001-4.jpg

 

The bracket could use a little tweaking and some changes for more stiffness.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/2012/004.jpg

 

Two differences here. The outlet is shorter which may be a problem getting a good clamp on the hose since the hose does not line up at the right angle. and the actuator port on the old housing was at a point in the volute that saw less pressure. The extra pressure will effect the boost control. But boost control will need to be sorted out again any way.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/2012/006-1.jpg

 

Kinugawa 20g. Cover and wheel. Apparently 3" inlet translates to 3 3/16 in Chinese. Fortunately i had a stretched out coupling.

 

http://www.ebay.com/itm/Kinugawa-Mitsubishi-3-Turbo-Compressor-Housing-Wheel-TD05-TD06-20G-/150912389453?hash=item232314514d&item=150912389453&pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr

 

So far i like it. With the boost controller off it hits 26 psi and drops to 24.5 at 5500. Hopefully when i bring the boost control in it will hit 26 quicker with out spiking higher. I only made 2 pulls to 5500 in thrid. I did get to the track hoping to play with the boost controller, but it was late and busy so i did not buy a tech card. I did get to see a quest run 10.65 @ 133. 2 gay z or not, Serpents car was moving. http://www.sqperformance.com/forum/Smileys/default/smiley.gif

Edited April 13, 2013 by StarquestRescue

[StarquestRescue]

So since the spring 2012 dyno i have 7 psi more fuel pressure (54 psi base) and 5% more injector cc (swaped the 1050 primary for a 1200), secondary is a 2000. And i am still maxing them out. http://www.sqperformance.com/forum/Smileys/default/cool.gif . I wish i could get a bigger secondary. Hopefully the dyno day will work out good.

 

Oct 29 2012

 

Spring 2012 Dyno

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/Data%20logs/DSC02799.jpg

 

New Dyno Boost peaked at 27.7 and tailed of to 26.5

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/Data%20logs/001-001.jpg

Edited April 13, 2013 by StarquestRescue

[StarquestRescue]

So whats next?

Slim, sexy, curvy. 20g size. Picked this up at a discount price.

 

And the top of the box mentions. Durability, Performance and Brand Image. LOL.

 

Hopfully there was some foucus on the Durability Performance.

 

Well i had it out a couple of times with the new compressor. It is a little peppier at low rpm and a tad more power up top. Makes 2 more psi on the spring, 27 vs 25. Maxing the injector's out again. I need to play with the boost controller to see if i can get it to ramp up a little quicker.

 

With the 18g i had to limit boost at low rpm, mostly on account of the surge problems. The surge problems are gone and i have to readjust my boost control strategies to bring these bigger turbos in quicker.

 

 

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/Turbo%20Pictures/DSC03147.jpg

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/Turbo%20Pictures/DSC03150.jpg

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/Turbo%20Pictures/DSC03143.jpg

http://i237.photobucket.com/albums/ff45/StarquestRescue/Turbo%20Pictures/DSC03144.jpg

Edited April 13, 2013 by StarquestRescue

[StarquestRescue]

April 2013

 

The sq wastegate was not cutting it, so i switched to a T3 8cm sy/ty exhaust housing. Not sure i am going to like this, but it did cure the creep problem.

 

Very stealthy. Just a few little bolt ons. LOL. The spring dyno day is coming up in two weeks.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/T3%20Turbo/DSC03264_zpsff8e004d.jpg

I probably would have spaced the turbo out a 1/2 inch with a nother t3 flange if i had the parts on hand to do it.

 

The sq waste gate actuator does not have enough travel to fully open the gate. But is working pretty well for now

 

I tweaked this heat shield a little with some buzz saw cuts.

 

http://i237.photobucket.com/albums/ff45/StarquestRescue/T3%20Turbo/DSC03260_zps9f539d2d.jpg

Edited April 13, 2013 by StarquestRescue

[psu_Crash]

Looking good John!

Spring dyno day you say? hmm .. wishful thinking

I haven't had any real time to play with my car since the last dyno debacle. Hopefully sometime this summer I can answer your M-P-Why question a little more thoroughly

I still made more torque

[dmyers151]

What'd you do to combat the jump from single injector to dual injector firing now that you're running matched 1200's? I know that was always an issue.

 

Might be PM'ing you soon, I've got a couple ideas for an 06SL2 wheel, I'd like to pick your brain a little.

[Technology]

I'd find a way to drop that base pressure. Lower the better. Also, you lose control at 90% duty cycle cause the injectors are just open at that point, letting that 80psi of pressure do its thing. And shouldn't you be able to use some bigger injectors? I had 1300cc high z injectors in my old car. you could use one of those as the primary, and a 2150cc secondary. or something like that.