When does the Van Turbo Light?
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Laughing Gas
Joined: May 2007
Posts: 793
Likes: 29
When does the Van Turbo Light?
Title sums-it up.
Presuming a stock van turbo, about what RPM does the boost come online?
Where I am going with this is that I am focusing on the van turbo and just want to know when the turbo wakes-up so that I can decide on what rear gear to use.
Reason for going with the van turbo is that I want to move away from the wastegate. Also, I know what I am getting into by ditching the WG and am not worried about it as I can easily manage RPM's with the ZF.
Apologies in advance if this information is out there, but am not seeing it.
And while on the topic, is anybody selling the van turbo anymore or do I need to recover one from a bone yard and rebuild it? Years ago some of the vendors carried the van turbo, but I recently hit their sites and am not seeing it available anymore.
Presuming a stock van turbo, about what RPM does the boost come online?
Where I am going with this is that I am focusing on the van turbo and just want to know when the turbo wakes-up so that I can decide on what rear gear to use.
Reason for going with the van turbo is that I want to move away from the wastegate. Also, I know what I am getting into by ditching the WG and am not worried about it as I can easily manage RPM's with the ZF.
Apologies in advance if this information is out there, but am not seeing it.
And while on the topic, is anybody selling the van turbo anymore or do I need to recover one from a bone yard and rebuild it? Years ago some of the vendors carried the van turbo, but I recently hit their sites and am not seeing it available anymore.
Butt-Head
Joined: Apr 2004
Posts: 9,432
Likes: 2,920
From: Reed Point, MT
That's a vague question to ask because it has no clear cut answer. Every situation will be dependent on ambient conditions, elevation, and fuel delivery. Do you know anyone with a 1995-1997 manual pickup? That will be a great indicator for your location if you can drive that around for a little while.
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Laughing Gas
Joined: May 2007
Posts: 793
Likes: 29
Ah, good point that I should have also clarified not only stock turbo, but stock vehicle 
And anybody driving one can freely clarify whether they are at sea level or above and whether they did any modifications
Goal remains to learn when the boost comes online and in all the descriptions of this turbo, have yet to see any stated RPM ranges.
And anybody driving one can freely clarify whether they are at sea level or above and whether they did any modifications
Goal remains to learn when the boost comes online and in all the descriptions of this turbo, have yet to see any stated RPM ranges.
Lead Driver
Joined: Jun 2013
Posts: 5,647
Likes: 891
From: north of Minneapolis, MN
I ran one for a bit, in my experience it really didn't start making boost until it was far too high in the rpm range for my driving style....like 2500-2600, then it was a beast.
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Laughing Gas
Joined: May 2007
Posts: 793
Likes: 29
Found a few threads and it seems that there is a bit of blurring over a van versus hybrid-van turbo.
By hybrid-van turbo I am defining it as starting with the truck turbo, swapping the turbine housing (either 1.15 or 1.0 A/R), and nothing else on the turbine side. Seems that these turbos do not wake up until higher in the RPM band. This makes sense as the truck and van turbos reportedly use different turbine wheels.
Did find a thread where the poster used a van turbo (reported as OE from a van) on a 250 (and possibly 160/100 injectors plus a WW2) where turbo lit around 1600 RPM's (or more specifically, at 59 - 60 mph with an A/T, and am presuming OE tires). For comparison, the same individual reported the OE turbo lit at 55 - 56 mph's.
Naturally, I remain open to inputs from actual observations and corrections to what I am sensing so far.
By hybrid-van turbo I am defining it as starting with the truck turbo, swapping the turbine housing (either 1.15 or 1.0 A/R), and nothing else on the turbine side. Seems that these turbos do not wake up until higher in the RPM band. This makes sense as the truck and van turbos reportedly use different turbine wheels.
Did find a thread where the poster used a van turbo (reported as OE from a van) on a 250 (and possibly 160/100 injectors plus a WW2) where turbo lit around 1600 RPM's (or more specifically, at 59 - 60 mph with an A/T, and am presuming OE tires). For comparison, the same individual reported the OE turbo lit at 55 - 56 mph's.
Naturally, I remain open to inputs from actual observations and corrections to what I am sensing so far.
Hotshot
Joined: Dec 2012
Posts: 11,269
Likes: 1,654
From: Las Cruces New Mexico
When the van turbo craze started it was more encline to help reduce the egts when towing not not so much for faster spool. On my obs with the HPX wheel, and stock 1.15 exhaust housing my turbo lights on the 1900rpm, but I also have mods.
More Turbo
Joined: Oct 2013
Posts: 584
Likes: 1
Why not just unplug the wastegate hose from the actuator?
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PREMIUM SPONSOR
Joined: Dec 2012
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From: Oakdale, CA
As stated, the exact RPM it will spool will vary. I personally prefer the 1.0 housing over everything when it comes to a daily driver which occasionally tows.
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Laughing Gas
Joined: May 2007
Posts: 793
Likes: 29
This still leaves me with a smaller turbine wheel and A/R housing.
I might go this way.
First step is to get an actual van turbo and then will decide whether to keep the 1.15 housing or drop to a 1.0 A/R.
Can decide on differential gears later but wanted to try and get real-world reports of the turbo's sweet spot so that I can put the money elsewhere if it is not looking like a gear change seems necessary.
And getting it to spool is not much of a worry
First step is to get an actual van turbo and then will decide whether to keep the 1.15 housing or drop to a 1.0 A/R.
Can decide on differential gears later but wanted to try and get real-world reports of the turbo's sweet spot so that I can put the money elsewhere if it is not looking like a gear change seems necessary.
And getting it to spool is not much of a worry
Lead Driver
Joined: Jun 2013
Posts: 5,647
Likes: 891
From: north of Minneapolis, MN
This still leaves me with a smaller turbine wheel and A/R housing.
I might go this way.
First step is to get an actual van turbo and then will decide whether to keep the 1.15 housing or drop to a 1.0 A/R.
Can decide on differential gears later but wanted to try and get real-world reports of the turbo's sweet spot so that I can put the money elsewhere if it is not looking like a gear change seems necessary.
And getting it to spool is not much of a worry
I might go this way.
First step is to get an actual van turbo and then will decide whether to keep the 1.15 housing or drop to a 1.0 A/R.
Can decide on differential gears later but wanted to try and get real-world reports of the turbo's sweet spot so that I can put the money elsewhere if it is not looking like a gear change seems necessary.
And getting it to spool is not much of a worry
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Laughing Gas
Joined: May 2007
Posts: 793
Likes: 29
Good to know and I suspected that was the case. Not really a factor though as I can just swap the van turbo back out with a modded stock turbo with the 1.0 housing. In any event, am still focusing on the van turbo first.
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