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This is really impressive for a bolt on turbocharger running E85 and pump gas. On this tune the customer swapped out the header and it appears we lost some bottom end power over the old but peak power stayed about the same (on pump gas). All the dyno plots on this tuning session had the “blips” where the WG opens and I just noticed this time around the dyno was set to 150 instead of 120 so that could have something to do with it.
Dyno: Dyno Dynamics @ Pina Motorsports, WA Tuner: Phil Grabow Element Tuning Wheel HP: 532whp UNCORRECTED Wheel TQ: 513wtq UNCORRECTED Target Boost: 26 psi Target AFR: 11.5 Fuel: E85 and 92 Octane pump gas Ambient Temp: 50 Elevation: 0
Initially I tuned the car with DW 1000cc injectors but for E85 we stepped up to RC 1600cc with the base fuel pressure set to 50 psi but the regulator diaphragm failed so we had to replace the regulator with an Aeromotive A1000 (don’t waste your money on anything else!). We also swapped in a TurboSmart BOV to better manage peak boost pressure and not blow open.
Year: 2007 Engine Management: Element Tuning Hydra EMS Turbo: Element GT65 Bolt On Intercooler: APS Meth Kit: None Injectors: RC 1600cc, Bosch 044 Fuel Pump, A1000 regulator Engine: Element Tuning Rods, CP Pistons, Cosworth cams, stock block and bore. Intake/Inlet: Magnus, APS Headers: AMR Uppipe: AMR Downpipe: ? CBE: Invidia Other:
The Element GT65 Bolt-on really shined on E85 fuel especially given the car didn’t have anything done to the heads but a set of cams.
What an animal this STi is on E85. Not only did it belch out 597 whp at max boost but it also made 530 whp at a reasonable 23 psi.
Dyno: Dynojet, PA Tuner: Sean M Wheel HP: 597whp UNCORRECTED Wheel TQ: 566wtq UNCORRECTED Target Boost: 30 psi Target AFR: 11.5-11.8 Fuel: E85 Ambient Temp: 40 Elevation: 0
Customer road tuned too boot!
Year: 2007 Engine Management: Element Tuning Hydra 2.6 EMS Turbo: Element Tuning GT65 Intercooler: TurboXS Meth Kit: Hydramist 80/20 water/methonal (not used for E85) Injectors: 2200cc, Bosch 044 Fuel Pump Engine: Element Tuning Pro Comp, Element Tuning Rods, CP Pistons, Element Big Valve Heads (+1mm valves, Cosworth cams) stock block and bore. Intake/Inlet: Element Tuning Headers: ? Uppipe: Element Tuning Downpipe: Element Tuning CBE: Greddy Other: Element Tuning Competition Catch Can
The dyno fans were completely inadequate and I’m surprised the car made as much power as it did but he did have heating issues as a result. I’m sure with proper fans we could have seen as much as +30 HP.
This is really impressive for a bolt on turbocharger running pump gas and only at 22 psi. The plot didn’t turn out as smooth as I like but the AFR was within .1 and timing was smooth. I think we just had a little boost oscillation going on. I also find it difficult on the Dyno Dynamic dyno to load and unload just right resulting in a boost spike and then a little oscillation (too many buttons to press. LOL!).
Dyno: Dyno Dynamics @ Pina Motorsports, WA Tuner: Phil Grabow Element Tuning Wheel HP: 452whp UNCORRECTED Wheel TQ: 482wtq UNCORRECTED Target Boost: 22 psi Target AFR: 11.1 Fuel: 92 Octane pump gas Ambient Temp: 50 Elevation: 0
Initially we tuned the car at OEM fuel pressure but the DW 1000cc injectors were maxing out so we bumped the fuel pressure to 50 psi just to get the car tuned safely. The plan is to get some larger 1260cc injectors and the Hydramist system to turn things up.
Year: 2007 Engine Management: Element Tuning Hydra EMS Turbo: Element GT65 Bolt On Intercooler: APS Meth Kit: None Injectors: 1000cc DW, Bosch 044 Fuel Pump Engine: World One, Element Tuning Rods, CP Pistons, Cosworth Cams, Brian Crower Valves, Valve Springs and Retainers, stock block and bore. Intake/Inlet: APS 70mm intake, APS 3 Inlet hose, Magnus Intake Manifold, (longrunner, jet hot coated) Headers: Gruppe-S Exhaust Manifold (jet hot coated) Uppipe: SBR Up-Pipe with 44mm Tial Ewg (jet hot coated) Downpipe: Invidia Catless CBE: Invidia Other: Element Tuning Competition Catch Can, Unorothox Racing stock diameter pulley
set, Greddy Racing Radiator and Oil Cooler
I honestly couldn’t believe the power we hit with the Element GT65 Bolt-on especially given the car didn’t have anything done to the heads but a set of cams. I was tuning other cars this same day with rotated 35R kits and head work that were making the same power at this boost level. This car has had a rough past with bad tuning and engines but World One Performance sorted out the car so I could do my job. I was really happy for the customer this turned out so well.
With larger fuel injectors I think we could have turned up the boost a little (maybe 1-2 psi) for another 30 whp or so. With the Element Hydramist we should be able to add an additional 4 psi and get this car close to 500 whp on pump gas.
This was originally written up in April 2008 on NASIOC, but its relevance continues to this day. Plus, given how everyone is trying to save money these days, $1899 for a 450+ whp turbo is a much smarter purchase than spending well over $2500 for a rotated turbo kit that puts out the same amount of power and even spools slower.
This was the maiden voyage for our GT65 stock location turbocharger and for being internally gated 512 whp is pretty impressive. Not only did it impress on the dyno but also took the NASA Time Attack Unlimited class (TTU) win on both days at Virginia International Raceway.