EVO Green/20g-LT airflow numbers
Dec 10, 2006 | 03:45 PM
#46
What do you think about the boost surge (hump) you are getting? Do you think it is the high boost wastegate actuator that is causing it? I remember Buschur's first 20G-8 turbo use to surge like crazy so it was horrible for daily driving.
Dec 10, 2006 | 03:57 PM
#47
Originally Posted by EvoBig16G
What do you think about the boost surge (hump) you are getting? Do you think it is the high boost wastegate actuator that is causing it? I remember Buschur's first 20G-8 turbo use to surge like crazy so it was horrible for daily driving.
Dec 10, 2006 | 05:59 PM
#48
i have the buschur 20g-9 but i dont think its a LT cause i bought it off a member there just few weeks back..not long at all.. but the turbo sounds different... it has a whine everytime i hit high boost... i didn't know if it was normal or a leak... it sounds distinctly diffrrent from a boost leak.. i had boost leak previously and it whistled cause of the leak...i get it fixed now it just give low whine everytime i hit high boost... is this normal? even on a regular 20g9-5.. buschur racing one... it has also been ported and polished...
Dec 11, 2006 | 08:55 AM
#50
Unfortunately I have never run any variant of that turbo. Friends of mine have run the 3076 wheel in bolt on DSM turbos however, and looking at their logs and logs from DSMlink forums and other sources it seems to max out at 52 lbs/min. The 3071 will be somewhat below that. 99.99% of the time compressor wheels do max out at what they are rated at regardless of what turbine wheel and housings it's paired with (within reason, as long as there are no major restrictions of course), so I'm sure the 3071 wheel flows what it is rated at, just like the 3076. I can't recall what it's rating was, I want to say mid-high 40s. If that is correct, I would speculate that this bolt on turbo is a better option for most people.
also did you but the green from fp, and did you get it ported and clipped?
Dec 11, 2006 | 09:15 AM
#51
I bought mine from BR. Not ported or clipped, just the upgraded WGA.
My BOV is Gus modded, and when I put the Gus port to atmosphere it doesn't leak for as high as I can test it (got to nearly 40 psi once before the tester turned into a cruise missile). During my testing with this turbo I made pulls with the gus port to atmo, and with it set up to work like stock, and airflow/boost remained unchanged. I know I did this test at around 46 lbs, and I'm nearly certain I did it again at 48-49 lbs.
My BOV is Gus modded, and when I put the Gus port to atmosphere it doesn't leak for as high as I can test it (got to nearly 40 psi once before the tester turned into a cruise missile). During my testing with this turbo I made pulls with the gus port to atmo, and with it set up to work like stock, and airflow/boost remained unchanged. I know I did this test at around 46 lbs, and I'm nearly certain I did it again at 48-49 lbs.
Dec 11, 2006 | 11:42 AM
#52
Evolving Member
Joined: Jun 2006
Posts: 425
Likes: 0
From: So cali.
Let me get this straight, when everyone state to look at how many lbs the turbo flow. It is always ment at peak boost ? For example, people say the 50 trim will flow 50lbs/min but that is at peak boost? If that is true then the 50 trim doesn't flow 50lbs/min on pump gas then?
Dec 11, 2006 | 11:57 AM
#53
Let me get this straight, when everyone state to look at how many lbs the turbo flow. It is always ment at peak boost ? For example, people say the 50 trim will flow 50lbs/min but that is at peak boost? If that is true then the 50 trim doesn't flow 50lbs/min on pump gas then?
Dec 11, 2006 | 12:13 PM
#54
Evolving Member
Joined: Jun 2006
Posts: 425
Likes: 0
From: So cali.
Thank you for the replay, if you think about it, this turbo is cabable of 400whp on pump gas then. Cause there are 50 trim turbo that are hitting close to 400whp on pump gas. I think on 91 it be real close since this turbo flow pretty good.
Dec 11, 2006 | 02:38 PM
#55
the numbers for pump gas 50 trim evo's go from about 415-450, with 450 being the exception, rather than the example.
Dec 11, 2006 | 05:51 PM
#57
I am looking for atleast 420WHO from this baby and I bet it can do it. The FP GREEN made over 400Pump Gas WHP on DSM's, the Evo is better all around so it should work. My only concern is the twin scroll being able to flow enough up top.
Also if you use the stock IX Wastegate thingy vs.s the HP thingy, won't spoolup time INCREASE because of it opening sooner?
Also if you use the stock IX Wastegate thingy vs.s the HP thingy, won't spoolup time INCREASE because of it opening sooner?
Dec 11, 2006 | 08:24 PM
#58
Evolving Member
Joined: Jun 2006
Posts: 425
Likes: 0
From: So cali.
Damn 400whp on pump gas with similar powerband as a stock turbo would be insane. I'm looking forward to this turbo now, just need couple more question back from Burschur and I'll go ahead and bit the dust and get this turbo. I'm currently at 330whp/310lbs on 91 octane at 23lbs.
