Greddy Bolt on Turbo....
01-14-2004 | 10:39 PM
#1
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Posts: n/a
Greddy Bolt on Turbo....
Has anyone ever heard of this turbo before??? Better yet is anyone on island running the Turbo?? Greddy Bolt On TZ518Z (TD05-18g). Supposedly supposed to be a bolt on turbo upgrade that allows for the use of the stock ecu and only requires that you have a front mount intercooler, and a tubo back exhaust??
Anyone have any ideas about a turbo upgrade with no engine management?? I never thought that was possible.
"From Turbo magazine Febuary 2003 issue "Our blitzkrieg tech attack was at full song when we heard Greddy was testing turbos for its basic bolt-on upgrade for the stout Subaru WRx. We went into full combat mode and crashed its R&D party held at the company's HQ in Irvine and at GT Motorsports in Ranch Cucamong, Calif.
Greddy had zeroed in on a T518Z turvo, a fresh unit from Greddy's parent company in Japan. Developted by mitsubishi and trust-designed 8cm^2 compressor housing that gets maximum thrust from the 18g Wheel. The T518Z featyres a special flange that matches the odd, triangle-shaped WRX Downpipe. The unit was bolted on and the WRX was powered up on GT's four-wheel-drive dynojey. The Subaru, fitted with a greddy front-mount intercooler kit and evo exhaust system, ran 12 psi of boost. With the stock ECU heading the tuning effort, the WRX laid 238.5 hp and 215.2 lb-ft of torque. Greddy highly recommends its e-manage tuning computer because the engine can run a tad lean on the topend if boost is pushed past the 12-psi max. Tuning with the e-manage netted 280 plus whp.
WRX pilots looking for a quick power fix have a real direct bolt-on option in greddy's T518Z upgrade."
Anyone have any ideas about a turbo upgrade with no engine management?? I never thought that was possible.
"From Turbo magazine Febuary 2003 issue "Our blitzkrieg tech attack was at full song when we heard Greddy was testing turbos for its basic bolt-on upgrade for the stout Subaru WRx. We went into full combat mode and crashed its R&D party held at the company's HQ in Irvine and at GT Motorsports in Ranch Cucamong, Calif.
Greddy had zeroed in on a T518Z turvo, a fresh unit from Greddy's parent company in Japan. Developted by mitsubishi and trust-designed 8cm^2 compressor housing that gets maximum thrust from the 18g Wheel. The T518Z featyres a special flange that matches the odd, triangle-shaped WRX Downpipe. The unit was bolted on and the WRX was powered up on GT's four-wheel-drive dynojey. The Subaru, fitted with a greddy front-mount intercooler kit and evo exhaust system, ran 12 psi of boost. With the stock ECU heading the tuning effort, the WRX laid 238.5 hp and 215.2 lb-ft of torque. Greddy highly recommends its e-manage tuning computer because the engine can run a tad lean on the topend if boost is pushed past the 12-psi max. Tuning with the e-manage netted 280 plus whp.
WRX pilots looking for a quick power fix have a real direct bolt-on option in greddy's T518Z upgrade."
01-14-2004 | 10:59 PM
#2
yes, the Greddy turbo is nice. There should be one sitting in the display case at Speed Gear still.
You don't "have" to have EM to run an upgraded turbo, But you need it to take full advantage of the upgrade. I ran with a VF30 for about 6 months with only a MBC and things were fine! (and we all know how I drive!
) Farid had the VF30 in there for as long as he had the WRX also.
The HKS turbo kit doesn't come with any EM either, .... so basically they're leaving it up to you to decide what to go with.
But like I said, to take full advantage of the turbo, you need some kind of EM to turn up the boost.
You don't "have" to have EM to run an upgraded turbo, But you need it to take full advantage of the upgrade. I ran with a VF30 for about 6 months with only a MBC and things were fine! (and we all know how I drive!
) Farid had the VF30 in there for as long as he had the WRX also.The HKS turbo kit doesn't come with any EM either, .... so basically they're leaving it up to you to decide what to go with.
But like I said, to take full advantage of the turbo, you need some kind of EM to turn up the boost.
01-14-2004 | 11:44 PM
#3
Like what Sean said. I have this turbo, I like it, although it's kinda laggy. It flows quite a bit (more than a vf-30) so to take full advantage of it you need em and an upgraded fuel system. From what I understand, people push Sti 550cc injectors to about 90% duty cycle exploiting this turbo to it's full potential. If you have questions about it, PM me and I'll send you my #.
01-15-2004 | 12:28 AM
#4
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From: Southern California
Car Info: 2016 Z51 C7, 2007 Exige S, 2008 ZX-10R, 2016 Taco
According to Kingpin
Performance, we don't need STI injectors. You can modify your stock injectors to flow 740-750. Taken from www.kingpinperformance.com
Its a tough choice on which injector to buy for your WRX. Buy STI Pink injectors? $300-$550 and you get an extra 100cc worth of fuel. PE 650 or 850's? $600-$800 a set and because these are mechanically slow you need tuning or a flash to make them work correctly. Other companies sell an option for $450 and another that requires you to solder in a resistor pack. You can skip all of this and make your own 740CC injectors for free.
The Stock Blue 440CC injectors and the STI pink 540s are identical other then the end cap and the color so either injector will work for this mod. There is no advantage to having the Pink STIs once modded so sell them, Make some cash and mod your stock injectors. There are a few ways to accomplish the mod but what needs to happen is the end cap of the injector needs to be removed. You can grind it off or cut it off. Does not matter really. You can use a band saw or a dremel tool and a vice. Take your time and cut the silver end cap off where the nozzles (holes) are.
Since you are removing the end cap you dont need to send these off to have them matched. There will be no adjustment a injector shop can do anyways since they are sealed units. What you are doing is removing the flow restrictor (end cap). The biggest advantage is that the stock ECU is calibrated for the correct opening time compensation for these injectors (dead time). PE's are twice as slow and need more dead time. All of the issues that the PE's bring to the table are absent with these injectors.
Questions:
How much will the injectors flow once modified?
740-750CC
What about the spray pattern?
You end up with a find disk pattern
What about the idle?
Rock solid idle as stock once AFR's are tuned.
What about reliability?
They are stock Denso injectors and you are just removing the end cap containing the sized holes.
Do I need a fuel pump?
Yes, Pressure at the injector is reduces since the injector body can now flow more fuel. You need a fuel pump capable of handing 740CC injectors. Walbro is fine.
What if I dont have engine management will these work on a stock ECU?
NO, You will nearly double the fuel flow so you will need a Utec, SAFC, Link, Gems, Flashed ECU or other EM to calibrate these injectors.
I am still worried about equal flow. How Can I be sure this works?
You can send the injectors To Venom performance in California or RC engineering for testing once the mod is complete. Venom will even do the mod for you and test each one but the cost is nearly $300.
Why are you posting this information and not selling modified injectors?
Because it costs nothing to do this mod and its better to give back to the community. If you do not want to perform this simple mod yourself there are companies out there that will take your $200-$300. Maybe one of the members will try this, report back and offer to mod your injectors for a reasonable price? $50? This way its worth his time to do it and you save a ton of cash in the process by not having to spend $450+ on injectors. Work as a community guys
How many cars have you tuned with these injectors and how long have people been running them?
Kingpin has tuned 7 cars with these modified injectors. All idle smooth, All run fantastic and all have low IDC's One customer has 5000 miles on his set now with out issue.
Hope you guys try this and report back. I would not suggest something that I do not believe it. Some of you can flow test them if you wish and let us know the results. Let the flood gates open!
Thanks
San (I read a lot)
Its a tough choice on which injector to buy for your WRX. Buy STI Pink injectors? $300-$550 and you get an extra 100cc worth of fuel. PE 650 or 850's? $600-$800 a set and because these are mechanically slow you need tuning or a flash to make them work correctly. Other companies sell an option for $450 and another that requires you to solder in a resistor pack. You can skip all of this and make your own 740CC injectors for free.
The Stock Blue 440CC injectors and the STI pink 540s are identical other then the end cap and the color so either injector will work for this mod. There is no advantage to having the Pink STIs once modded so sell them, Make some cash and mod your stock injectors. There are a few ways to accomplish the mod but what needs to happen is the end cap of the injector needs to be removed. You can grind it off or cut it off. Does not matter really. You can use a band saw or a dremel tool and a vice. Take your time and cut the silver end cap off where the nozzles (holes) are.
Since you are removing the end cap you dont need to send these off to have them matched. There will be no adjustment a injector shop can do anyways since they are sealed units. What you are doing is removing the flow restrictor (end cap). The biggest advantage is that the stock ECU is calibrated for the correct opening time compensation for these injectors (dead time). PE's are twice as slow and need more dead time. All of the issues that the PE's bring to the table are absent with these injectors.
Questions:
How much will the injectors flow once modified?
740-750CC
What about the spray pattern?
You end up with a find disk pattern
What about the idle?
Rock solid idle as stock once AFR's are tuned.
What about reliability?
They are stock Denso injectors and you are just removing the end cap containing the sized holes.
Do I need a fuel pump?
Yes, Pressure at the injector is reduces since the injector body can now flow more fuel. You need a fuel pump capable of handing 740CC injectors. Walbro is fine.
What if I dont have engine management will these work on a stock ECU?
NO, You will nearly double the fuel flow so you will need a Utec, SAFC, Link, Gems, Flashed ECU or other EM to calibrate these injectors.
I am still worried about equal flow. How Can I be sure this works?
You can send the injectors To Venom performance in California or RC engineering for testing once the mod is complete. Venom will even do the mod for you and test each one but the cost is nearly $300.
Why are you posting this information and not selling modified injectors?
Because it costs nothing to do this mod and its better to give back to the community. If you do not want to perform this simple mod yourself there are companies out there that will take your $200-$300. Maybe one of the members will try this, report back and offer to mod your injectors for a reasonable price? $50? This way its worth his time to do it and you save a ton of cash in the process by not having to spend $450+ on injectors. Work as a community guys
How many cars have you tuned with these injectors and how long have people been running them?
Kingpin has tuned 7 cars with these modified injectors. All idle smooth, All run fantastic and all have low IDC's One customer has 5000 miles on his set now with out issue.
Hope you guys try this and report back. I would not suggest something that I do not believe it. Some of you can flow test them if you wish and let us know the results. Let the flood gates open!
Thanks
San (I read a lot)
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