Even if they make a similar wheel for the 38r? Then again that charger is pretty solid in stock form, the 38r.
This is BA tho!
Radically Redesigned Wicked Wheel® makes 43 PSI on my STOCK turbo!
- Thread starter Power Hungry
- Start date
Even if they make a similar wheel for the 38r? Then again that charger is pretty solid in stock form, the 38r.
This is BA tho!
Morgan@Midwest Diesel & Auto
New member
In for 38r results!
Sent while hooked to something, somewhere, with my foot through the floor!
Sent while hooked to something, somewhere, with my foot through the floor!
dirtflinger92
New member
In for more results!!
Groomzybanshee
New member
How long is the turbo gonna last at that psi? Or you thinking it may be better being its closer to 1:1
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Power Hungry
Member
The one thing I can't actually measure (at the moment) is RPM of the turbine. However, I'm ordering an optical pickup so that I can add turbine speed to the datalogging results. Given that the exhaust side of things hasn't changed (from both a configuration and a pressure standpoint) I'm going to have to proceed with the basic premise that the turbo isn't working any harder and therefore shouldn't suffer any significant failure.
Historically, when we've talked about stock turbos failing at high boost levels, this was because the only way to achieve higher boost on a stock turbo was to push more fuel, which created more backpressure, which drove the turbine faster and created more boost. It's the overdriving of the turbine which ultimately ends up with a turbo failure. Since we're making more boost due to a redesign of the compressor wheel, not by overdriving the turbine, the turbo isn't really working any harder. The compressor is just more efficient, as indicated by the 1.2:1 backpressure/boost ratio.
From a logical standpoint, I have no concerns for turbo reliability.
Historically, when we've talked about stock turbos failing at high boost levels, this was because the only way to achieve higher boost on a stock turbo was to push more fuel, which created more backpressure, which drove the turbine faster and created more boost. It's the overdriving of the turbine which ultimately ends up with a turbo failure. Since we're making more boost due to a redesign of the compressor wheel, not by overdriving the turbine, the turbo isn't really working any harder. The compressor is just more efficient, as indicated by the 1.2:1 backpressure/boost ratio.
From a logical standpoint, I have no concerns for turbo reliability.
96stacked&smoken
New member
So these will work on a obs? Very cool stuff for sure.:thumbsup:
indyF-350psd
New member
what about the H2E? similar size wheel as the 38r?
neverkickn
New member
So the boost and backpressure numbers that you listed where both absolute? I assumed that the boost numbers where gauge pressure.
Fordguy100
New member
Backpressure staying roughly the same is incredible for the boost difference! I agree with what you said, shows how much more effective the compressor is at flowing air vs the stocker, otherwise backpressure would be much higher.
dietoremain
New member
http://www.dieselsite.com/wickedwheelwithfreepedestalo-rings-instock.aspx
Here is the page to pay up n be a tester.. im still waitin to hear anything back sent my $ to Bob... im guessing he will ask specs on my truck and gotta sign a disclaimer of course..
Here is the page to pay up n be a tester.. im still waitin to hear anything back sent my $ to Bob... im guessing he will ask specs on my truck and gotta sign a disclaimer of course..
Power Hungry
Member
Holy crap... That's what I get for going over the datalogs at midnight. My numbers are off. The Boost was GAUGE pressure (as indicated by the video of the boost gauge), but the EBP numbers I was looking were ABSOLUTE values. Compensating for a BARO offset of 14.3225 PSI, the backpressure numbers were actually around 37-38 PSI stock and 38-39 PSI with the new wheel. This means the corrected ratios were 1.226:1 for the stock wheel and 0.907:1 for the new wheel.
I apologize for my miscalculations. Not to often I make such a blatant oversight. :morons: However, it still does not detract from the fact that the new wheel is extremely efficient.
Here is a graph of the (corrected...
) drive pressure vs boost. Unfortunately, since this was pulling directly from the MAP sensor for boost, it can only read to around 22-23 PSI which makes it rather useless for reference. I'm trying to fit a 100 PSI pressure sensor to the truck and correct the MAP table so that the datalogs will be more useful. At that time, I'll also be logging MAT sensor output to get a clearer idea of what the inlet temps are.(Click on image to enlarge)
Once I get the new sensor installed, more data will be forthcoming.
Buffalo444
New member
This just gets better and better.
sent by the beard
sent by the beard
BIGISLAND7.3
New member
Subd, Just wondering but how would this run on a "stock" truck with just an intake and exhaust? .
yzrmbsg
Member
This is pretty cool, in for more results!
dietoremain
New member
With or without tunes? Honestly if its not a tuned truck I dont see a reason.. But a stock style truck with supporting mods and tunes will benefit.. I am going to speak with Bob tomorrow on the phone and get set up for testing I am very confident I will have results that will be noticeably improved.. But its all down to the real world driving.. Its gonna be a few weeks but I'm very excited this is a whole nother world for making a GTP38 turbo worth more than a paper weight..
BIGISLAND7.3
New member
With a tuned truck , Will there be a noticeable difference? . Would the truck benefit if its a ZF6 compared to an auto ? .
