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Forum nameTurbo/Nitrous Tech
Topic subjectHRC vs. STAR maximum boost !!
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=105386
105386, HRC vs. STAR maximum boost !!
Posted by BoostnRS, Mar-26-01 09:10 AM
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 ?

<Please be as specific as possible>
Thanks!


105387, RE: HRC vs. STAR maximum boost !!
Posted by DarkOne, Mar-26-01 09:56 AM
That one's easy. The fuel pump included in the kit. HRC's inline flows more, at higher pressures. Period.

______________________________________
-DarkOne
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105388, Actually...
Posted by Skrilla, Mar-26-01 11:23 AM
...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"
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105389, RE: Actually...
Posted by 99GSBBTurbo, Mar-26-01 11:39 AM
So, which one is better? I thought an intank fuel pump is better then an inline??



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105390, RE: Actually...
Posted by 95ESi, Mar-26-01 06:43 PM
>just a Wahlbro replacement. Someone
>here "did the most" with
>the inline AND intank. That's
>an even better idea!

hheheheh and that would be me and Jason! :)


l e o n

105391, RE: HRC vs. STAR maximum boost !!
Posted by RS_Guy, Mar-26-01 11:40 AM
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



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105392, RE: HRC vs. STAR maximum boost !!
Posted by Stan2gnt, Mar-26-01 09:02 PM
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.


Stan2gnt
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105393, RE: HRC vs. STAR maximum boost !!
Posted by BoostnRS, Mar-27-01 05:13 AM
Right now im running a stock fuel pump with a Hypertech 500hp inline fuel pump ($150).. with 320cc's and a 10:1 FMU..

You guys think this is okay for 10psi boost on stock internals?


105394, RE: HRC vs. STAR maximum boost !!
Posted by Stan2gnt, Mar-27-01 11:33 AM
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


Stan2gnt
Stan2va@aol.com
95 Talon ES-I-NOS but T soon!
http://members.nbci.com/FlyEsi/home.htm
You too can have a never updated site complete with old info and dated pics!