vortech pulley
vortech pulley
whats is the smallest pulley i can install on my g35 w/stock internals? and what slight modifications would i need to ensure that there is no porblems such as detonation.
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kmech_7
- Posts: 322
- Joined: Fri Jan 19, 2007 7:16 pm
- Car: 2003 Infiniti G35 coupe (Skyline) Vortech Supercharged Jul 08 ROTM
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Re: vortech pulley (g35_cd6)
i would be carefull if i were you. you dont want to go anything over the one step down pully. the next pulley will make 9-10psi. in some instances this pulley will spike at 12psi. this is bad....this will cause your early det.
you will need larger injectors for the next step up pulley. if you dont do this you will loose an injector(it will fail) much sooner then l8r. on the 'stock' vortech setup you are already over maxing the stock injectors at 157%.
With more boost comes more fuel (unless you like pistons frozen in place by your rings). along with the injectors i would get rid of the vortech in-line fuel pump and your in tank pump, oh, and the vortech fmu. once you get rid of these i would drop in a Walbro 255lph in tank pump with the 440cc or more injectors. its much more reliable this way and will create a better fuel curve to tune with a stable slope.
and last but not least......get someone whom knows wtf they are doing with a tune. if you are looking for a good tune for the vortech send me a message some time.....i go MIA from time to time here on NICO.
you will need larger injectors for the next step up pulley. if you dont do this you will loose an injector(it will fail) much sooner then l8r. on the 'stock' vortech setup you are already over maxing the stock injectors at 157%.
With more boost comes more fuel (unless you like pistons frozen in place by your rings). along with the injectors i would get rid of the vortech in-line fuel pump and your in tank pump, oh, and the vortech fmu. once you get rid of these i would drop in a Walbro 255lph in tank pump with the 440cc or more injectors. its much more reliable this way and will create a better fuel curve to tune with a stable slope.
and last but not least......get someone whom knows wtf they are doing with a tune. if you are looking for a good tune for the vortech send me a message some time.....i go MIA from time to time here on NICO.
Re: vortech pulley (kmech_7)
give me and idea on a good tun for it. i just ordered the software from splitsec and plan on tuning it myself. all what size pulley were u talkin bout cuz i have bn looking @ the 2.75 and the 2.95 have no clue how to figure out what boost level that brings it up to tho.
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Frank @ VORTECH
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- Joined: Wed Mar 26, 2008 10:56 am
- Car: 91 240SX Coupe, BMW E46 Coupe
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Re: vortech pulley (g35_cd6)
Be careful you don't over spin the supercharger (SC 53,000 RPM MAX) . That could cause the bearings to fail. The 2.87 pulley does over spin the blower and the 3.12 is safe but spins the blower at its MAX RPM. A 2.75 pulley would slip and cause the blower to fail.
Typically for every pulley size you go down you gain about 2 PSI.
Typically for every pulley size you go down you gain about 2 PSI.
Re: vortech pulley (g35_cd6)
3.12 is the "safe" option...if you run anything smaller regardless of your mods you still run the risk of the belt slipping