BuzzKen
Vendor , w/Business number
Anybody got any ideas on what max safe boost for the turbo would be for a GTB2260VK on a 3.0TDI?
GTB2260 on 3.0TDI, max safe boost?
- Thread starter BuzzKen
- Start date
devonutopia
Top Post Dawg
Is that the stock turbo for that lump?
I would imagine with a stock engine that turbo would have no worries boosting to 2.3 to 2.5 bar on a remap. I know people pushing that sort of boost safely on 1.9 application.
I would imagine with a stock engine that turbo would have no worries boosting to 2.3 to 2.5 bar on a remap. I know people pushing that sort of boost safely on 1.9 application.
BuzzKen
Vendor , w/Business number
It's on a 3.0, not a 1.9. Running the same boost numbers will grenade the turbo right quick. It comes stock on certain versions of the 3.0.
JFettig
Vendor
Do the math!
JFettig
Vendor
I'll do the math next weekend if you want. Are you bringing it down or flying?
BuzzKen
Vendor , w/Business number
Driving alh. Just let Mark know so we can move forward pls. Thx.
This will help with tuning the '13 and newer as well.
This will help with tuning the '13 and newer as well.
Last edited:
bhodgkiss
Veteran Member
Yes that'd be a ~400-450bhp turbo if it was boosted to 2.5bar?? 
JFettig
Vendor
lol what ben?
Ken, see e-mail. need more info to get more exact numbers.
Ken, see e-mail. need more info to get more exact numbers.
bhodgkiss
Veteran Member
im saying a 3ltr running 2.5bar boost would be a 400bhp motor - outside the realms of a 2260
adamss24
Veteran Member
i ran 2.4 bar of boost on a gt2265 hybrid, ran the same on a gtb2260vk hybrid also with no issues- clutch did not stand a chance so no way to test the car to it's full potential... i don't think 2.5 bar of boost on a stock gtb2260vk is too much...
devonutopia
Top Post Dawg
Not knowing how the 3 litre engine works in relation to this turbo compared to a 1.9 doesn't make it easy for me to comment. I can only use my personal experience on a 1.9 PD130 lump.
Why can't the same turbo run the same boost on a higher displacement engine? That's what I am wondering (and I am no mechanic so genuinely interested to know)
Why can't the same turbo run the same boost on a higher displacement engine? That's what I am wondering (and I am no mechanic so genuinely interested to know)
DJGonzo
Veteran Member
Because it probably flows more than an 8v 1.9l. You need to know flow to know where your motor will sit in the compressor efficiency map.
If a motor flows more than another, boost will be lower for the same power output. Otherwise you run the risk of overspinning the turbo and kablam!
Volumetric efficiency basically.
I will send you some good data tonight.
1.8bar is still safeish. It will not explode but the expecter life of the turbo is not going to like it.
And you can burn all the fuel you get from the pumps on certain 176kw modes even with stock turbo...Good car ruined by CP4 pump.
And you can burn all the fuel you get from the pumps on certain 176kw modes even with stock turbo...Good car ruined by CP4 pump.
bhodgkiss
Veteran Member
You'll be pushing 50% more air in with a 3.0ltr lump vs a 1.9!
Revs will be similar.
So same boost, much greater mass flow
Revs will be similar.
So same boost, much greater mass flow
JFettig
Vendor
If you taper boost appropriately is it really that hard on the turbo?
It should theoretically be able to run 28-30psi in a certain region of the rpm range shouldn't it? I calculated 28psi up to 3800RPM and taper to 22psi by 5000rpm based on a similar compressor map, what others had said about max flow, and how the turbo actually spools based on a log.