RB25det stock specs

Discuss the RB20, RB25 and RB26 series engines.
JCAP_Tuning
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Joined: Mon Aug 11, 2003 6:02 pm

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What is the redline and stock boost on the RB25det?

Also, does anyone know the stock gear ratio in the rear diff?


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Checkered-Member
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Car: 1998 Nissan Altima (modded)
2003 Audi A6 2.7T (stock)
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Inline-6 RB25DET DOHC Displacement 2498ccBore & Stroke 86.0mm x 71.7mm Compression Ratio 9.0:1 Max. Power 250 (187kw) at 6400 Max. Torque 217 (295Nm) at 4800 Red line: 7000Bhp/Liter 100

single Garrett T03 stock boost @ 6.8 psi

Shoot…………don’t remember the gear ratio off the top of my head...lets see if I can find it (or remember)

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2003 Audi A6 2.7T (stock)
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ha found it

1st 2.785 2nd 1.545 3rd 1.000 4th 0.694 Reverse 2.272 Final drive 4.083

JCAP_Tuning
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Joined: Mon Aug 11, 2003 6:02 pm

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I thought the turbo was a T3 flange, but was a T28 turbo.

BlockHead
Posts: 210
Joined: Tue Jan 07, 2003 1:05 pm

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actually its a T-25 which is a t3 turbo made by garrett, and the red line seems to be different on different years, because the stock redline when getting a power fc is 6800 but other ppl say their's is at 7200 on stock computer.


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