Did I blow a gasket?? - Page 6 - Pontiac Solstice Forum
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post #76 of 76 (permalink) Old 07-14-2019, 02:38 PM
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So, for HP Tuners:

Credits are tied to the car's VIN *and* the HP Tuners interface (MPVI) based on its serial number. Once you use the credits for that car, you can re-flash it as many times as you want as long as you're using the same interface. (Some people call it a "cable," but it's really an embedded computer that plugs into the OBD-2 port.) You can switch PCs, etc. as many times as you want, reflash all you want, as long as it's the same physical interface and same VIN.

For the Opel Injectors:

When editing the calibration in the HPT VCM Editor application, set the Injector Constant (under Injector Control / Flow Rate) to 0.02471.

Under [ECM]12308 - Injector Offset vs Pressure Delta vs IGNV, you'll find a table labeled "Pressure Drop (MPa)." It's a table with 12 columns and one row. Set the following values

Column | Value
0.2 | 0.0420
0.4 | 0.0420
0.8 | 0.0450
1.4 | 0.0480
2.3 | 0.0510
3.5 | 0.0530
5.0 | 0.0560
7.5 | 0.0590
10.0 | 0.0620
12.5 | 0.0770
15.0 | 0.0920
18.0 | 0.0950

Or, see the attached image. (Courtesy of the nice guys at ZZP.)

I've had better experience with Dave Gilbert's tunes than with some other vendors. Also, his tunes are not locked, which is a Very Good Thing. Even though you've already put quite a bit of cash into this, I think the $375 for Dave's tune is worth it. I just installed the big wheel K04 from Werks yesterday along with their tune. The performance difference is substantial.

If you get a tune from any vendor, make sure you tell them that you're running an LDK with the Opel injectors. They should make the required changes in the tune before they send you the first round. Dave will have you drive and log some stuff, send the logs to him, and he'll make whatever changes are required and iterate.

For E85, the tune has to be adjusted, and I think you need the right HPFP if the LDK didn't come with it. I've seen quite a few mentions of using the C7 Corvette HPFP, but I haven't gone down that path yet so others would be more qualified to answer. If you can get the part number off of the HPFP on your new engine, you can look that up to see if it's E85 (or "flex fuel") compatible. If so, it should be fine.
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Blue-ish 2006 2.4, Werks stage 1 turbo, Borla cat-back, DDM braces, Spec aluminum flywheel, Spec stage 2 clutch, Werks aluminum radiator, some gauges, RKSport hood, Morimoto FX-Rs, GReddy Profec, Norm's fenders

'07 GXP, Werks Big Wheel K04 and tune, Solo catless downpipe, TCE Wilwood 6 piston front brakes, 4-piston rears , stainless brake lines, slotted/drilled rotors, BC Racing BR coilovers, Performance Autowerks intercooler, DDMWorks CAI, charge pipes and braces, RPM rollbar

Last edited by raygun; 07-14-2019 at 02:41 PM.
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