going from high to low boost
#1
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Location: Albany NY
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going from high to low boost
i bought a complete turbo kit for my D16Y8. RC 440 injectors, greddy cast manifold, borg warner GM - 4 turbo, Tail wastgate, HKS BOV, chipped P28 ECU with jump down harness, ebay inercooler and piping among all the little odds asn ends, ect.
im running a completely stock internal Y8 so i only want to run this set up on 6 psi. the previous owner of this kit was running 10 psi also on a stock Y8 engine. the ecu is tuned for this set up wile running at 10 psi.
so my question is do i need to get my car re tuned because i am running lower boost?
im running a completely stock internal Y8 so i only want to run this set up on 6 psi. the previous owner of this kit was running 10 psi also on a stock Y8 engine. the ecu is tuned for this set up wile running at 10 psi.
so my question is do i need to get my car re tuned because i am running lower boost?
#2
Re: going from high to low boost
Your answer is no, you do not. There's no need to detune an ecu its better to actually tune it to full potential and just back boost down the ecu will compensate. So no it will run just fine ecu will compensate. Might not be 100% effective but surely wont blow nothing up or drive funny.
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#8
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iTrader: (1)
Re: going from high to low boost
I made 260whp with my stock internals d-series, for a long time with zero problems. other than the head lifting with the stock head bolts after about a year, replaced them with ARP's and drove it for another year until i sold it, the new owner turned the boost up way past what it was tuned to and destroyed the engine. YMMV
#9
Re: going from high to low boost
When i say compensate i mean you dont need 10 different tune for 10 different boost levels. Tune to max power and just back from there. No need to have 3 or 10 different tunes.
#11
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Re: going from high to low boost
A good tuner doesn't just tune for peak boost. A good tuner should tune all load columns between 0 and target boost.
This can be done several ways, smaller wastegate spring, dialing back the boost controller or very carefully with left foot braking and throttle. Load bearing dynos make part throttle (and partial boost) tuning much easier.
This can be done several ways, smaller wastegate spring, dialing back the boost controller or very carefully with left foot braking and throttle. Load bearing dynos make part throttle (and partial boost) tuning much easier.
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