I was just recently going reading a back issue of TURBO magazine with the 420A turbo article. I noticed that the HRC turbo kits are able to run (Stage2) 2 to 3psi more than the STAR kits. I realize that this is a fuel system issue! I am curious as to what aspect of HRC's fuel system allows it to boost more then the STAR kit ?
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'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
...the in-line works in conjunction with the stock pump as to keep the pressure of both pumps down. Very good idea. It allows for more fuel at even highger pressure than just a Wahlbro replacement. Someone here "did the most" with the inline AND intank. That's an even better idea!
Skrilla '97 Base Talon NA "Technology: The Only Replacement for Displacement" "Peace and Turbo Grease"
*Skrilla "Honest officer, I thought you were trying to race me" Talon: 1st 2.4L '97 Prelude '04 350Z
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#105389, "RE: Actually..." In response to Reply # 2
So, which one is better? I thought an intank fuel pump is better then an inline??
Ball Bearing Star Stage II "Power is nothing without control"
I use to have a White 99 GS Sport with a Star Stage II Ball Bearing T3/T4 turbo...it was fun untill....well those who remember me know Oh Ya...this is what I have now... a 99' GSX...
#105391, "RE: HRC vs. STAR maximum boost !!" In response to Reply # 0
LAST EDITED ON 26-Mar-01 AT 05:44 PM (PST)
That is my favourite issue of all time! Its the deciding issue that made me start to save up money in order to buy my turbo kit.
I wouldn't take that issue word for word though because it does have some errors including the price of Hahn's kit at the time!
You can't run max boost possible (by the turbo) on stock internals anyway so I would suggest you consider setting aside some money for fuel upgrades (be it SAFC, Injectors of better Fuel Pump).. Ideallly a SAFC & Injectors coupled with a Stage II would be perfect.
In case you are wondering, I have a HRC Stage 2.5 (with FMIC)
Guy RS_Guy
Keep all your fingers crossed people! Looks like it's all falling in place finally... I might actually be *driving* my car soon! Its only been 5 LONG months...
#105392, "RE: HRC vs. STAR maximum boost !!" In response to Reply # 5
The in tank pump is cabable of flowing huge amounts of fuel as evidenced by the 500+hp turbo DSMs that have them. The problem is even the "high pressure" intank pump performance declines as fuel pressure goes up. If a kit was designed with larger injectors and to run no more than say 55psi of pressure the intank pump would be all thats needed. At Stage 1 and 2 fuel pressures what Skrilla said. I'm thinking about skipping the in tank pump all together and just getting an inline (high pressure walboro+in-line=too much) but then that might still be too much fuel(and pressure) with the included 12:1 regulator.
#105394, "RE: HRC vs. STAR maximum boost !!" In response to Reply # 7
320cc injectors and a 10:1 regulator. I did the RCE calculations with 330cc injectors and a 4:1 regulator and the horsepower capability seemed reasonable up to 10lbs of boost. I'm sure with a 10:1 regulator, inline pump and 320cc injectors you should have fuel to spare at 10psi
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Oh Ya...this is what I have now... a 99' GSX...
