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TOPIC: Car Surging
#104
Car Surging 8 Months, 4 Weeks ago Karma: 0  
The last time I had my car tuned here in St. John's before I had to store it for the winter, for some reason , it was surging when it built boost....it felt like Boost Cut or fuel Cut, I am not sure, I was running 15 pounds of boost, first and second gear seemed to work fine, then in third soon as the boost would rise, it would surge forward like Boost Cut...Any ideas?
Blacksi (User)
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Gender: Male inshapept@hotmail.com Location: St. John's, Newfoundland , Canada Birthdate: 1976-11-03
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#114
Re:Car Surging 8 Months, 4 Weeks ago Karma: 0  
do you have datalogs? Most likely your getting boost creep and you are hitting your boost cut.

Then the question could be why are you creeping? manifold wastegate placement?
ahobbs (User)
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#115
Re:Car Surging 8 Months, 3 Weeks ago Karma: 0  
I am using a Lovefab Minime EQ and a Tial 44mm wastegate , the WG is just to the left of the manifold...heres a Pic, kinda hard to see it but its on the left side of it...
Blacksi (User)
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#116
Re:Car Surging 8 Months, 3 Weeks ago Karma: 0  
Oh yeah and in the Pic you can see there's No dumptube hooked up at that point, that was another issue I had on the dyno the 2nd time, whenit hit full boost the exhaust gasses were being sucked directly into the turbo inlet and bogging down the engine ( and I was running a screen cause I can't fit a regular filter on the turbo cause the altenator is in the way, but we fabricated an airbox now so that will help, and I have the dumptube now too ) and I have a 3inch downpipe and a straight-through catless exhaust....what do you think?
Blacksi (User)
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#118
Re:Car Surging 8 Months, 3 Weeks ago Karma: 0  
it doesnt sound like boost creep or boost/fuel cut to me. I'd try to have the data log checked and see how it performing during those times. that should reveal what's going on.
Russyo (User)
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#120
Re:Car Surging 8 Months, 3 Weeks ago Karma: 0  
Yeah I have a version of that same manifold and I didn't have any issues at all
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