Ahh yes, . . . . the RB25

Discuss the RB20, RB25 and RB26 series engines.
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rustbucket
Posts: 224
Joined: Tue Apr 11, 2006 3:05 am
Car: '90 s13 RB25DET SII

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Took my car to the 1/4 drag strip at Budds Creek MD last night. I was hoping to run 12.5 ish. I can get the damn scanner to pick the timeslip up so I ll write it out. This was my fastest run with 93 octane, FMIC and 12psi of boost. (mickey thompson drag radials and stock rear shocks with 1/2 a tank of gas)

Launched around 4500rpms

R/T .40960' 1.671 330 5.0461/8 7.859mph 88.421000 10.2691/4 12.302mph 111.48



I tried to hit atleast a 12.299, but the clutch wouldnt hold a 5000 rpm launch.I got some attention, but unfourtunately I paired up with an 8-10sec muscle car almost every run so my car didnt look that fast.Didnt build it for drag, but im pretty freaking pleased with that time slip.


Yellow4g63
Posts: 3718
Joined: Mon Jan 20, 2003 6:07 pm
Car: 95 Nissan RB20 240SX RB20
91 Nissan NX2000 VE power
95 Nissan 240SX Stock
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Thats a good 60' time!. Stock suspension seems best for drag racing lol.

SeVa-S13
Posts: 8478
Joined: Thu Jan 23, 2003 9:11 pm
Car: '05 GTO 6spd

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Stock is always pretty good for dragging; try taking off your front (or mayber even both) swaybars and you just may get that 12.2. Good runs.

TOPSECRT88
Posts: 1235
Joined: Sun Apr 03, 2005 10:58 am
Car: S14

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Yellow4g63 wrote:Thats a good 60' time!. Stock suspension seems best for drag racing lol.


What kind of numbers are you making with that setup? Also looks like you did better than you were expecting w/ 1/4 time..

gomer23
Posts: 498
Joined: Sun Apr 10, 2005 10:01 am
Car: 1989 Nissan 240sx
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Damn I guess I do need tires really bad haha. awesome time man. Makes me want to get my **** together so I can see a number like that haha.

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partymonster 975
Posts: 1100
Joined: Sun Jul 10, 2005 7:44 am
Car: 03 Maxima SE, 94 Corolla

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? all u got is a FMIC? wow. Nutz, post ur mods if u got them. I want to do an RB swap maybe and I want that time lol.

RBadam
Posts: 76
Joined: Wed Oct 04, 2006 7:42 am
Car: 240sx

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rustbucket wrote:Took my car to the 1/4 drag strip at Budds Creek MD last night. I was hoping to run 12.5 ish. I can get the damn scanner to pick the timeslip up so I ll write it out. This was my fastest run with 93 octane, FMIC and 12psi of boost. (mickey thompson drag radials and stock rear shocks with 1/2 a tank of gas)

Launched around 4500rpms

R/T .40960' 1.671 330 5.0461/8 7.859mph 88.421000 10.2691/4 12.302mph 111.48



I tried to hit atleast a 12.299, but the clutch wouldnt hold a 5000 rpm launch.I got some attention, but unfourtunately I paired up with an 8-10sec muscle car almost every run so my car didnt look that fast.Didnt build it for drag, but im pretty freaking pleased with that time slip.
thats awsome, is all you have is a boost controller and fmic??? i need slicks.....

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rustbucket
Posts: 224
Joined: Tue Apr 11, 2006 3:05 am
Car: '90 s13 RB25DET SII

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Hybrid FMIC, NISMO FPR, Walbro 255lph fuel pump and HKS EVC 4 set to 12 psi. The car also has nothing but a radio and two seats w/manual seatbelts. The ambient air temp was about 40 degrees.

Don't have any hp numbers, I tuned it with my highly calibrated *** dyno.

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300Plus
Posts: 700
Joined: Sat Jul 09, 2005 8:11 pm
Car: 1995 S14 w/ Rb25det Series II

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Nice man! S13 I take it? I'm going back to the track this weekend with my full interior S14 , boost at 12, and slicks. would love to see near those numbers

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rustbucket
Posts: 224
Joined: Tue Apr 11, 2006 3:05 am
Car: '90 s13 RB25DET SII

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I forgot to mention I have the VLSD from a manual Transmissioned R33, about 1.5k rpms to revlimiter in 4th gear by the end of the 1/4mile.

Good luck 300plus

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Shocker
Posts: 2082
Joined: Sun Aug 01, 2004 2:40 pm
Car: 89 240sxHB rb26/30

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ive got 255/55/16 BFG drags, r33 rear end and 5 speed rb25 transmission, trapping 109, crossing around 5800-5900 ish in 4th.

but to bad I cant lanch.. stuck with a 12.88 with a 1.91 60ft... nice time to btw! awesome!

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300Plus
Posts: 700
Joined: Sat Jul 09, 2005 8:11 pm
Car: 1995 S14 w/ Rb25det Series II

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rustbucket wrote:I forgot to mention I have the VLSD from a manual Transmissioned R33, about 1.5k rpms to revlimiter in 4th gear by the end of the 1/4mile.

Good luck 300plus
Thanks man. I'm running the same VLSD and 5 speed RB25 transmission, with custom intake mani, FMIC, and I'll be around 12-14psi on slicks... so we'll see what happen I'll def have to work on my launching, hope to get 3 or 4 runs in so by the end I better see atleast 12s lol

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Shocker
Posts: 2082
Joined: Sun Aug 01, 2004 2:40 pm
Car: 89 240sxHB rb26/30

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300Plus wrote:Thanks man. I'm running the same VLSD and 5 speed RB25 transmission, with custom intake mani, FMIC, and I'll be around 12-14psi on slicks... so we'll see what happen I'll def have to work on my launching, hope to get 3 or 4 runs in so by the end I better see atleast 12s lol
Slicks.. hell you better get 12's...


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