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Old 10-21-2009, 12:28 AM   #1
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Default my 2871r dyno vs the turbonetics *******

So the 2871 is at 20psi also. It wasnt tuned long though. Timing wasnt changed from the S60. Just adjusted AF so it would be safe. I believe there is alot of room for timing and much better improvement.
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my 2871r dyno vs the turbonetics shitter-t3-s60-stage-1.jpg   my 2871r dyno vs the turbonetics shitter-315hp.jpg   my 2871r dyno vs the turbonetics shitter-315hp-boost.jpg  
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Old 10-21-2009, 12:33 AM   #2
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Significantly faster spool.
+40 lb-ft
+30 hp

How is that other company still in business?
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Old 10-21-2009, 12:35 AM   #3
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Great gains, was your previous turbo DBB?
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Old 10-21-2009, 01:43 AM   #4
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Quote:
Originally Posted by SolarYellow510 View Post
Significantly faster spool.
+40 lb-ft
+30 hp

How is that other company still in business?
I am actually down in power. The s60 was on a mustang, the 2871 is on a dyno pack. The car feels significantly less powerful.
It does appear to spool better, but def alot less *****.
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Great gains, was your previous turbo DBB?
The previous turbo was the Turbonetics bb. Its not a DBB and that company is full of lying ********.

Anyway. I think the 2871 has alot of room for improvement. I am going to leave it at the dyno for a while to get it dialed in..

I will post the difference between now and then as soon as I have it.
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Old 10-21-2009, 02:26 AM   #5
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may i ask what's your build on your engine. too lazy to search. LOL

that's the turbo i'm going to put on soon hopefully
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Old 10-21-2009, 12:39 PM   #6
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The 2871 .64a/r feels to small on my car. If I had the choice again I would have sprung for a 3076. I'm on a built motor aswell.
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Old 10-21-2009, 12:57 PM   #7
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Wow RRE is still around? I remember them back from my DSM days.
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Old 10-21-2009, 01:00 PM   #8
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damn, I bet that car scoots.
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Old 10-21-2009, 01:02 PM   #9
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Hmm. Kind of looks like you wanted a 3071.
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Old 10-21-2009, 01:19 PM   #10
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I love how the t3s60 womps the 2871. I can't wait to dyno my shizzle on the NE Dyno Day.
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Old 10-21-2009, 01:26 PM   #11
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hmm i think once you get the timming sorted it will be atleast as good if not better. still very respectable and workable in getting sideways imo
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Old 10-21-2009, 01:32 PM   #12
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Get the timing sorted out. What A/R did you go with?
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Old 10-21-2009, 01:39 PM   #13
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2871 has 3 different compressor trims too. Lot of flavors in trims and A/R combos.
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Old 10-21-2009, 01:41 PM   #14
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If he got the turbo he was talking about from the other thread, it's the 52 trim compressor. He was talking about doing a very small A/R to aid spool, which would obviously hurt top end.
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Old 10-21-2009, 06:53 PM   #15
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I dont have the a/rs on hand.
This is the .64 housing.

Once the timing is sorted I think it will be much better.

this is the turbo I have. The very generic model most have.
TurboByGarrett.com - Catalog

Again, we will sort the timing and see what happens. I am surprised i am at the same boost. I expected to be running it lower. i am sure the timing is why. I would like to see 350-360 whp and ftlbs on this dyno pack thingy.

RRE is still rocking it out. They had the bay full of time attack car, road race, and ralley cars. I was the 5th person on the dyno that day..

More to come. car should be on the dyno next week..
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Old 10-21-2009, 07:17 PM   #16
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Its nice to see what they turbos can do.
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Old 10-22-2009, 12:06 PM   #17
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What gear was your car in when pulling on the Dynapack? It says you have a final drive ratio during the pull of 6.033 to 1. If you were in fourth, which is probable, that would mean that your tq and hp numbers are artificially high (which always makes a happy customer but doesn't tell the truth). The dyno operator knows this and is giving you BS numbers to make you feel good. That is why it feels slower than the numbers indicate. The numbers are just incorrect. It is a very common trick...happens often...

Good luck.
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Old 10-22-2009, 12:18 PM   #18
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Final drive ratio is irrelevant as Dyno is calibrated to Hub speed and engine rpm. The software should self calibrate, unless they didn't set it up properly.
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Old 10-22-2009, 05:47 PM   #19
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I am not sure what gear it was in.
I am quite sure this tuner and the shop would not **** around with fluffing numbers. They know it wont fly with me and or my engine builder. The tuner is also an honest guy.

I am down on power simply because the 2871 numbers are on a wimpy dyno, not a mustang.
The HP is about what the mustang said and about TQ is about 20ftlbs less.

So the lower tq and the non mustang dyno all = less power. It wasnt a slouch, it just didnt have the ***** I did before. This is the one track I need every amount of power i could get..

Quote:
Originally Posted by sixshooter View Post
What gear was your car in when pulling on the Dynapack? It says you have a final drive ratio during the pull of 6.033 to 1. If you were in fourth, which is probable, that would mean that your tq and hp numbers are artificially high (which always makes a happy customer but doesn't tell the truth). The dyno operator knows this and is giving you BS numbers to make you feel good. That is why it feels slower than the numbers indicate. The numbers are just incorrect. It is a very common trick...happens often...

Good luck.
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Final drive ratio is irrelevant as Dyno is calibrated to Hub speed and engine rpm. The software should self calibrate, unless they didn't set it up properly.
I believe this was happening..
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Old 10-22-2009, 05:53 PM   #20
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Quote:
Originally Posted by Braineack View Post
Final drive ratio is irrelevant as Dyno is calibrated to Hub speed and engine rpm. The software should self calibrate, unless they didn't set it up properly.
Not on a Dynapack. They do it correctly, by inputting the final drive and then using the 1:1 gear.
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