Ultimate Racing Twin Turbo Kit Dyno'd!
1/29/05, 08:58 AM
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Hey guys,
Sorry, we haven't posted here in a while. We've just been extremely busy with the development and tuning of our Twin Turbo kit.
For the new readers, you can find the original thread here
Now onto the good news...
Over the past week, we've been tuning out the drivability on the dyno with the help of our dataloggers, scan tools, widebands, and SCT Tuning's XCalibrator (which I might add is working excellent!). This gave us a good understanding of the ECM's ways. Spark timing advances/retards, trends of short and long term fuel trims, air flow meter readings, etc. Understanding and fine tuning these play a vital role in how well the car will drive day in and day out. It's fairly simple for anyone to tune WOT. Cruise, stop and go, and "tip-in" are generally overlooked.
Last night, we took our Mustang WOT for the first time since the Twin Turbochargers were installed. It's currently equipped with our Twin Turbo kit, stock air flow meter, 65lb high impedance injectors, 3-4psi wastegate springs (with wastegate dumps plumbed back into the downpipes), high-flow cats, stock midpipe, and Ultimate Racing axleback mufflers. Some might ask why we're using such large injecftors. These are brand new 65lb high impedance injectors by Siemens/Deka. The beauty of these injectors is how well they work when pulsing low. They are fast reacting, and work better than our 42lb injectors! Anyhow, this test was to find the limitations of the factory air flow meter. We already have an upgraded air flow meter (which we will be testing next), but wanted to try this first. Sunoco 94 octane gasoline was used. Of course, we know that not everyone has the luxury of 94 octane, we will be releasing some 91 octane results shortly. The SCT Xcalibrator can hold 3 preset flashes. We plan to have 91, 93/94, and possibly a race gas map included with each kit. The kit is producing only 3.5 - 3.7 psi of boost pressure and we are rapidly nearing the limitations of the stock air flow meter. We are very pleased with the results.
The lower dyno shows our bone stock dyno of the Mustang.
3.5 - 3.7 psi
346.88 WHP
358.15 FT.LBS
Again, we are very pleased with the results considering we are still using the factory air flow meter, high-flow cats, virtually stock exhaust, and running very conservative boost!
Unfortunately, we did not have a video camera at the time. However, we'll still keep our promise and will be posting a video of our next run (this same setup) in the next few days.
Now, onto 8psi...
Comments and questions welcome.
Thanks, guys.
Darryl
Sorry, we haven't posted here in a while. We've just been extremely busy with the development and tuning of our Twin Turbo kit.
For the new readers, you can find the original thread here
Now onto the good news...
Over the past week, we've been tuning out the drivability on the dyno with the help of our dataloggers, scan tools, widebands, and SCT Tuning's XCalibrator (which I might add is working excellent!). This gave us a good understanding of the ECM's ways. Spark timing advances/retards, trends of short and long term fuel trims, air flow meter readings, etc. Understanding and fine tuning these play a vital role in how well the car will drive day in and day out. It's fairly simple for anyone to tune WOT. Cruise, stop and go, and "tip-in" are generally overlooked.
Last night, we took our Mustang WOT for the first time since the Twin Turbochargers were installed. It's currently equipped with our Twin Turbo kit, stock air flow meter, 65lb high impedance injectors, 3-4psi wastegate springs (with wastegate dumps plumbed back into the downpipes), high-flow cats, stock midpipe, and Ultimate Racing axleback mufflers. Some might ask why we're using such large injecftors. These are brand new 65lb high impedance injectors by Siemens/Deka. The beauty of these injectors is how well they work when pulsing low. They are fast reacting, and work better than our 42lb injectors! Anyhow, this test was to find the limitations of the factory air flow meter. We already have an upgraded air flow meter (which we will be testing next), but wanted to try this first. Sunoco 94 octane gasoline was used. Of course, we know that not everyone has the luxury of 94 octane, we will be releasing some 91 octane results shortly. The SCT Xcalibrator can hold 3 preset flashes. We plan to have 91, 93/94, and possibly a race gas map included with each kit. The kit is producing only 3.5 - 3.7 psi of boost pressure and we are rapidly nearing the limitations of the stock air flow meter. We are very pleased with the results.
The lower dyno shows our bone stock dyno of the Mustang.
3.5 - 3.7 psi
346.88 WHP
358.15 FT.LBS
Again, we are very pleased with the results considering we are still using the factory air flow meter, high-flow cats, virtually stock exhaust, and running very conservative boost!
Unfortunately, we did not have a video camera at the time. However, we'll still keep our promise and will be posting a video of our next run (this same setup) in the next few days.
Now, onto 8psi...
Comments and questions welcome.
Thanks, guys.
Darryl
1/29/05, 09:05 AM
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Great job guys, timing is impeccable! I look forward to your dyno numbers with 8psi and also to seeing how much boost the factory pistons/rings will take. Looks like you got about 100 rwhp over the factory setup. Don't know if it is going to be worth it yet, turbos are the most jaw dropping setup for sure but what will it cost?
1/29/05, 11:55 AM
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Very nice work gentlemen, there are quite a few of us here in Iraq who have been eagerly anticipating your results. I am very impressed. Looks like the kit will have alot of reach with those 65lbs inj. Great work, keep it coming. 
1/30/05, 01:15 PM
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Oh ya I just love turbos. I am already excited and I dont even have my stang yet. I like the three tune idea. I was actually talking to someone about something like that for his rsx today but anyways bac to the topic when you have a tune included for race gas will you also set that tune up for more boost. Like 8pis on 91, 93/94 octane and like 15 psi for race gas?
1/31/05, 09:56 AM
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NEW DYNO CHART AND VIDEOS!
As promised, I made a couple of videos on the dyno. It just so happens we made a bit more power too
3.2 - 3.5 psi
356.47 WHP
368.98 FT.LBS
Please Right Click and Save As:
In Car Video
Out Car Video
Enjoy!
Darryl
As promised, I made a couple of videos on the dyno. It just so happens we made a bit more power too
3.2 - 3.5 psi
356.47 WHP
368.98 FT.LBS
Please Right Click and Save As:
In Car Video
Out Car Video
Enjoy!
Darryl
1/31/05, 10:29 AM
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Interesting sound and nice to know that with VERY little boost it can make about 100 more rwhp then most of us are getting now....readyto see how it does in the 1/4 mile now.......WOOT!
John
John
1/31/05, 11:58 AM
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I say nail the waste gates shut and give it the "to the wood test." I wanna see some big numbers or some parts flying out of that thing! Of course it's not my car, I would probably go pretty conservative early on too. Keep up the good work.
I wanna see some big numbers or some parts flying out of that thing! Of course it's not my car, I would probably go pretty conservative early on too. Keep up the good work.
1/31/05, 12:52 PM
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Very interesting in deed!!! I assume that is w/ the stock engine. Are the latest #'s still w/ the stock mass air? At what point will pricing be announced?
I hope this will come as a whole package w/ everything the installation shop will need to do the install. At those levels (356rwhp/368rwtq) it would make for a nice sleeper street car.
I hope this will come as a whole package w/ everything the installation shop will need to do the install. At those levels (356rwhp/368rwtq) it would make for a nice sleeper street car.
2/1/05, 12:13 PM
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Originally posted by mr-mstng@January 31, 2005, 3:33 PM
Impressive numbers Darryl. What is the boost limitation with the stock head gaskets? Also, what fuel pressure are you @ ~3.5 psi?
Impressive numbers Darryl. What is the boost limitation with the stock head gaskets? Also, what fuel pressure are you @ ~3.5 psi?
Darryl
2/3/05, 04:32 PM
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wait a min i got all excited about your results then went home and though about how your results are inacurate.
At 3.5lbs of boost the maximum rwhp you could have assuming a perfect system with no hp loss would be (assuming 260rwhp stock) about 320rwhp... it is simple math. Please explain how you got the extra hp when at atmospheric pressure you have 260 hp and adding 1/4 more atmospheric pressure (3.5lbs) you gain almost 100 hp, i know it would actually take closer to 6-7lbs of boost.
I am just curious because i will definatly get a twin turbo for my 05 when it comes in but i want acurate info from my choise in venders.
Thank you,
Danny
At 3.5lbs of boost the maximum rwhp you could have assuming a perfect system with no hp loss would be (assuming 260rwhp stock) about 320rwhp... it is simple math. Please explain how you got the extra hp when at atmospheric pressure you have 260 hp and adding 1/4 more atmospheric pressure (3.5lbs) you gain almost 100 hp, i know it would actually take closer to 6-7lbs of boost.
I am just curious because i will definatly get a twin turbo for my 05 when it comes in but i want acurate info from my choise in venders.
Thank you,
Danny
2/3/05, 04:43 PM
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Originally posted by TURBO 05@February 3, 2005, 6:35 PM
wait a min i got all excited about your results then went home and though about how your results are inacurate.
At 3.5lbs of boost the maximum rwhp you could have assuming a perfect system with no hp loss would be (assuming 260rwhp stock) about 320rwhp... it is simple math. Please explain how you got the extra hp when at atmospheric pressure you have 260 hp and adding 1/4 more atmospheric pressure (3.5lbs) you gain almost 100 hp, i know it would actually take closer to 6-7lbs of boost.
I am just curious because i will definatly get a twin turbo for my 05 when it comes in but i want acurate info from my choise in venders.
Thank you,
Danny
wait a min i got all excited about your results then went home and though about how your results are inacurate.
At 3.5lbs of boost the maximum rwhp you could have assuming a perfect system with no hp loss would be (assuming 260rwhp stock) about 320rwhp... it is simple math. Please explain how you got the extra hp when at atmospheric pressure you have 260 hp and adding 1/4 more atmospheric pressure (3.5lbs) you gain almost 100 hp, i know it would actually take closer to 6-7lbs of boost.
I am just curious because i will definatly get a twin turbo for my 05 when it comes in but i want acurate info from my choise in venders.
Thank you,
Danny
