Rb25 w/stock injectors, MAF, safe to drive home at 7-8psi?

Discuss the RB20, RB25 and RB26 series engines.
SuicidnS13
Posts: 376
Joined: Sun Feb 10, 2008 5:13 am
Car: SC300 2jz, 93 Vert (RB), AcuraTL

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So guys getting ready to finish a top mount upgrade on the RB with an sc61 and a tial 38mm gate with a 7psi spring. It is running stock injectors still with stock MAF. Will it be safe to drive home from the fab shop at only like 7-8 psi? I know the 370's are good to like 320whp, will the MAF max out? Ive seen dynos of SC61's in the 300whp range at 8-10psi. Im sorta tight on money to update the fuel system for atleast a few weeks to a month. I have an AEM wideband to help check on AFRs as well.

So drive it home or tow it to dyno shop to get a baseline and see if my stock injectors are allready maxed out? Id love to beable to run it at low boost for a while, I hate having a car parked for so long. Whats the highest whp seen on the stock 370's? Also what is the j60 maf good for?


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SullivanRacing06
Posts: 1974
Joined: Sat Apr 21, 2007 8:45 am
Car: r32 gtst, 06 350z, r32 gtr, rs4 steaga, 04 350z, f350/6bt
Location: Gainesville

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any reason your asking this? if your worried about the injectors maxing out so dont hit boost? common sense is key here....

SuicidnS13
Posts: 376
Joined: Sun Feb 10, 2008 5:13 am
Car: SC300 2jz, 93 Vert (RB), AcuraTL

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I really wanna give it gas once. But if you feel my stock fuel system is maxed out already I wont. What is our stock fuel and maf system safe up to?

boosted98gst
Posts: 158
Joined: Sat Jul 02, 2005 9:34 pm

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Just dont risk it!! I know so many people have f-ed up motors because they could not wait to put supporting mods on the car. Not only is the fuel system going to be maxed or close to maxed out, the car is not tuned. To be honest if your putting this kid of money into a car are you really even going to risk it over one pull? That is redunkulious. Personally myself I would have the car trailored home, but you could easly get by just by staying out of boost. Dont be retarted and throw your hard work down the drain just because you cant wait. Good luck.

SuicidnS13
Posts: 376
Joined: Sun Feb 10, 2008 5:13 am
Car: SC300 2jz, 93 Vert (RB), AcuraTL

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Got it, thanks guys. Just got used to the 2jz world, where stock fuel systems are good to 550whp or more depending on Fuel Pressure.


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