20G turbo upgrade from Buschur Racing.
Jan 12, 2006, 05:55 PM
#781
This what confused me. You say here that an Evo 16g flows 625. Now reading your last post I assume you meant 525. That clears thing up. Thanks for the chart.
Originally Posted by Ted B
My info shows that compressor to have a choke flow rating of around 680 cfm as compared to 625 cfm for an EVO 16G, which equates to somewhere in the neighborhood of 5-10%.
Jan 19, 2006, 10:05 AM
#783
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im awaiting that call from jarrod saying that they got the batch in and will be shiping it out, but i was told 6-8 weeks about 2 to 3 weeks ago so i still have time.
Jan 20, 2006, 12:54 PM
#785
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Originally Posted by Nez136
i just got the call, mine is on the way! Thank you Buschur crew for the good customer service.
Jan 20, 2006, 03:39 PM
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Originally Posted by Ted B
According to the map I have, the stock turbo is approaching the limits of its efficiency right around 38 lb/min, which is a little over 500 cfm at standard temp, altitude, etc. If you can squeeze 42 lb/min out of it, that works out to 560 cfm as per my chart above, which as per my recollection, matches the published specs.
The 52 lb/min of the 3076 equates to ~690 cfm using the same reference.
We can convert those lb/min figures to approximate practical hp limits by doing this:
42 lb/min * 60 min/hr = 2520 lb/hr (air)
Using an AFR of 11.5:1, 2520 lb/hr / 11.5 = 219 lb/hr fuel
219 lb/hr fuel / .55 lb/hr/hp = 398bhp (stock turbo)
We can assume this as a practical limit for the bone stock turbo, which is roughly in line with Dynojet numbers (which are probably more reflective of bhp). Naturally, we know that we can eek another 10% with some effort, but that should be considered more or less a figure used for planning.
If we apply the same calculations to the 52 lb/min of the 3076, we get 493 bhp, which seems realistic.
The 52 lb/min of the 3076 equates to ~690 cfm using the same reference.
We can convert those lb/min figures to approximate practical hp limits by doing this:
42 lb/min * 60 min/hr = 2520 lb/hr (air)
Using an AFR of 11.5:1, 2520 lb/hr / 11.5 = 219 lb/hr fuel
219 lb/hr fuel / .55 lb/hr/hp = 398bhp (stock turbo)
We can assume this as a practical limit for the bone stock turbo, which is roughly in line with Dynojet numbers (which are probably more reflective of bhp). Naturally, we know that we can eek another 10% with some effort, but that should be considered more or less a figure used for planning.
If we apply the same calculations to the 52 lb/min of the 3076, we get 493 bhp, which seems realistic.
) gt3037 will move the same amount of air as the 20g9.
Apr 24, 2006, 05:02 AM
#792
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i have my dyno sheet up here somewhere on pump and no cams with knocking problems and a high flow cat. since then gotten rid of the cat, and cams are going to be on the way soon. i dynoed 325 325 then with knocking up top. im guessing next time i should be at around 350+ 350+ with cams and a new tune. assuming im not haveing knocking problems.
Originally Posted by Spooldyou
no there are just so many different versions and BS around this turbo that nobody can get a striaght answer.
Apr 24, 2006, 06:02 PM
#794
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Originally Posted by yesevo
how much more hp increase are we looking at if u compare 20g over stock turbo?
I dynoed 430whp and 377trq C16/meth. My car doesn't exactly have the strongest motor either.
This is a great street turbo/track turbo if your looking for a little more power without all the lag.
Check out my sig next to my 1/4 time, this was into a 10mph head wind. Check out DragNRacing's signature also. He is running 11.2 or 11.3 @ 124 with the same 20G-9.
Apr 24, 2006, 06:43 PM
#795
Originally Posted by Evo Police
My 20g stage II turbo 6 blade is going on this Friday. Once I get it tuned and redynoed I will post my findings and opinion. Hopefully this will help with those debating which 20g turbo to buy whether my results or good or bad.