[pimprn]

So I’m tuning my car and my wgdc is very high for this big turbo it’s off expecially when you compare it to another log from someone else running the exact same turbo. I pressure tested to 40psi (boost leak) all seems good and I don’t know what to do next could my wastegste not be calibrated properly even though my car isn’t throwing any codes. Reason I say that is mas flow is similar but my wgdc is higher ???

I dunno what the heck is going on my log :

https://bootmod3.net/log?id=649f8336ae729bae22aa5e53

Someone else running e30

https://bootmod3.net/log?id=643b41eeae729b6e18f92d5d

[LA1Z24]

Recently, there has been a rash of bad exhaust housings being used for hybrid turbos. easiest check...

Remove the downpipe, try and wiggle the wastegate flap. If it moves around on the shaft, it's toast. New turbo required.

[pimprn]

I want to check with ista that the shop who installed this turbo did it right first. My car isn’t throwing codes which makes me think it’s done right but I dunno have to test to make sure.

[thejeremyman9]

Originally Posted by pimprn

So I’m tuning my car and my wgdc is very high for this big turbo it’s off expecially when you compare it to another log from someone else running the exact same turbo. I pressure tested to 40psi (boost leak) all seems good and I don’t know what to do next could my wastegste not be calibrated properly even though my car isn’t throwing any codes. Reason I say that is mas flow is similar but my wgdc is higher ???

I dunno what the heck is going on my log :

https://bootmod3.net/log?id=649f8336ae729bae22aa5e53

Someone else running e30

https://bootmod3.net/log?id=643b41eeae729b6e18f92d5d

Looks like yours is a custom tune. Did you log the OTS map?

[pimprn]

Originally Posted by thejeremyman9

Looks like yours is a custom tune. Did you log the OTS map?

Yeah it is, i dont think its the tune, i think its mechanical.

[thejeremyman9]

Originally Posted by pimprn

Yeah it is, i dont think its the tune, i think its mechanical.

What makes you think that? The only way to eliminate the tune is to try the OTS tune with the same hardware?

Didnt you just compare your custom tune log to someone running the OTS stage 2+ tune?

[pimprn]

Originally Posted by thejeremyman9

What makes you think that? The only way to eliminate the tune is to try the OTS tune with the same hardware?

Didnt you just compare your custom tune log to someone running the OTS stage 2+ tune?

Cary jordan is tuning my car. But i will compare to confirm. OTS stage 2H made my car run horrible. The stage 2+ made it run good with my upgraded turbo...

[AmuroRay]

Originally Posted by pimprn

So I’m tuning my car and my wgdc is very high for this big turbo it’s off expecially when you compare it to another log from someone else running the exact same turbo. I pressure tested to 40psi (boost leak) all seems good and I don’t know what to do next could my wastegste not be calibrated properly even though my car isn’t throwing any codes. Reason I say that is mas flow is similar but my wgdc is higher ???

I dunno what the heck is going on my log :

https://bootmod3.net/log?id=649f8336ae729bae22aa5e53

Someone else running e30

https://bootmod3.net/log?id=643b41eeae729b6e18f92d5d

What mods are on the car? Airbox and inlet and effect WGDC

[thejeremyman9]

Originally Posted by pimprn

Cary jordan is tuning my car. But i will compare to confirm. OTS stage 2H made my car run horrible. The stage 2+ made it run good with my upgraded turbo...

Horrible as is not as fast or horrible as in there was actually a problem? The 2H map wont be as powerful as the 2+ map. And in theory a custom tune should be more power/"better" but that is not always the case.

[VGSON]

See you're running the cts big boss correct? Like Ray pointed out-What is your exhaust and intake system like? Those can significantly effect wgdc as well. Need zero restriction on either end. 200 cell catted downpipe at a minimum. Catless if possible.

You're WGDC is a little high, but not that bad. The turbo hits close to target then starts to open. Which is showing the boost taper Cary and others put into the tune.

[pimprn]

Originally Posted by VGSON

See you're running the cts big boss correct? Like Ray pointed out-What is your exhaust and intake system like? Those can significantly effect wgdc as well. Need zero restriction on either end. 200 cell catted downpipe at a minimum. Catless if possible.

You're WGDC is a little high, but not that bad. The turbo hits close to target then starts to open. Which is showing the boost taper Cary and others put into the tune.

My inlet was stock and exhaust is stock other then my catless downpipe. Could the inlet pipe actually hinder it that much? I have the CTS inlet pipe i have to put on.

Im away at work right now. will be home soon will test. Another guy told me to test with downpipe off because that was his problem, and take a log in 5th gear to make sure boost is flat. He definatly knows what hes talking about so i hope hes right hahaha....

[pimprn]

Originally Posted by AmuroRay

What mods are on the car? Airbox and inlet and effect WGDC

Dorch stage 2, vrsf charge pipe, cts n55 boss turbo, csf upgraded intercooler, and i will be putting that cts inlet pipe on.

[pimprn]

Originally Posted by thejeremyman9

Horrible as is not as fast or horrible as in there was actually a problem? The 2H map wont be as powerful as the 2+ map. And in theory a custom tune should be more power/"better" but that is not always the case.

Horrible as in it ran like shit lol.......But the custom tune ran the best, more throttle response just all around way way better..

[VGSON]

Originally Posted by pimprn

My inlet was stock and exhaust is stock other then my catless downpipe. Could the inlet pipe actually hinder it that much? I have the CTS inlet pipe i have to put on.

Im away at work right now. will be home soon will test. Another guy told me to test with downpipe off because that was his problem, and take a log in 5th gear to make sure boost is flat. He definatly knows what hes talking about so i hope hes right hahaha....

You have a catless downpipe which is good, definitely get an inlet. Not saying the inlet will fix all your issues, but will help. Keep sending logs to CAry and wait for his input. It takes time(revisions) for them to increase the boost/timing. Whats his directions?

[pimprn]

Originally Posted by VGSON

You have a catless downpipe which is good, definitely get an inlet. Not saying the inlet will fix all your issues, but will help. Keep sending logs to CAry and wait for his input. It takes time(revisions) for them to increase the boost/timing. Whats his directions?

I don’t think I can go much higher on boost as I’m on pump gas. But his direction is to check the wastegate that it’s calibrated properly. He says he sees it all the time.

So when I get home Wednesday I’m going to check and make sure. My car isn’t throwing any codes so we’ll see, but Cary says it night be on the high end of the tolerance.

[thejeremyman9]

Originally Posted by pimprn

My inlet was stock and exhaust is stock other then my catless downpipe. Could the inlet pipe actually hinder it that much? I have the CTS inlet pipe i have to put on.

Im away at work right now. will be home soon will test. Another guy told me to test with downpipe off because that was his problem, and take a log in 5th gear to make sure boost is flat. He definatly knows what hes talking about so i hope hes right hahaha....

Logging 5th gear is just going the put the car under more load so might mask a problem in lower gears but it doesnt solve anything. Also running with no DP is dumb for a ton of reasons, so IDK what that guy is talking about.

Originally Posted by pimprn

Horrible as in it ran like shit lol.......But the custom tune ran the best, more throttle response just all around way way better..

If your car didnt run right on the OTS map you might have another problem... the OTS map should run fine.

[pimprn]

Originally Posted by thejeremyman9

Logging 5th gear is just going the put the car under more load so might mask a problem in lower gears but it doesnt solve anything. Also running with no DP is dumb for a ton of reasons, so IDK what that guy is talking about.



If your car didnt run right on the OTS map you might have another problem... the OTS map should run fine.

The whole point of running a log in 5th gear is because the tuner puts that curve down in 3rd gear because thats where you spend most of youre time making torque and are in that gear. So if i see boost stay close to target and not fall off in 5th gear because that curve wont be tuned in the map. Then i know i can rule out boost falling off due to whatever Because it does stray away from target.

So Running no downpipe eliminates the idea of a restriction as that was his issue. He had the same symptoms as me. May sound stupid but always good to eliminate possible problems while trouble shooting so ill just check to see to make sure its not the problem stupid or not......

[thejeremyman9]

Originally Posted by pimprn

The whole point of running a log in 5th gear is because the tuner puts that curve down in 3rd gear because thats where you spend most of youre time making torque and are in that gear. So if i see boost stay close to target and not fall off in 5th gear because that curve wont be tuned in the map. Then i know i can rule out boost falling off due to whatever Because it does stray away from target.

So Running no downpipe eliminates the idea of a restriction as that was his issue. He had the same symptoms as me. May sound stupid but always good to eliminate possible problems while trouble shooting so ill just check to see to make sure its not the problem stupid or not......

Did not follow the 1st part at all. But by all means log any gear.

No DP = no O2 sensors and you blasting exhaust out of the turbo right toward the firewall lol? But sure, go right ahead

[n55david]

Stock inlet will kill 30hp or more...

This thread is hilarious btw

[pimprn]

Originally Posted by thejeremyman9

Did not follow the 1st part at all. But by all means log any gear.

No DP = no O2 sensors and you blasting exhaust out of the turbo right toward the firewall lol? But sure, go right ahead

Disconnect the downpipe from the bottom. Not the turbo connection.

[pimprn]

Originally Posted by n55david

Stock inlet will kill 30hp or more...

This thread is hilarious btw

Crank or wheel?

[n55david]

Originally Posted by pimprn

Crank or wheel?

Depends on the dyno