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Garrett76Zt

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Posts posted by Garrett76Zt

    GT Turbo Compressor Maps vs. L28ET Air Flow

    in Turbo / Supercharger

    Posted

    I dont have any charts to post but from my experience with the turbo's I've run . . . The 60-1 t3/t4 option is a great one. I ran a stage V .63 A/R backside and a TO4E cover, 3" inlet. Its relatiively cheap (i ran a standard journal bearing version) and flows over 60 lb/min. On my L28 (.080 over 3.0liter) I got full boost(25psi) at around 3700rpms and made 440whp on a stock head/cam.

     

    I ended up killing it with too many hot shut downs (DANG you DNI shootout! hahaha.) and decided to do a minor upgrade. I specifically asked for a slight bump in power without sacrificing spool and what I ended up with was a "blowzilla", basically a GT40 Compressor side, 4" inlet housing, and the same exact turbine setup from before. Same exact boost the car put down 460whp with no noticeable change in spool. Both of these are journal bearing and can be had brand new for less than $1000.

     

    I thought both of these were a great compromise in streetability. Powerband was from 3700-6000rpms and then once I upgraded cams up to 7krpms. Certainly didnt spool like a stock t3, haha, but very reasonable in my opinion. Just my .02 hope it helps. . .

    L motor crankshaft differences?

    in Nissan L6 Forum

    Posted

    Hey guys, tried searching a bit but am honestly looking for a quick answer. My Z just munched the #3 rod bearing and the rod and crank are toast. I'm looking to pick up another crank and (1) 9mm 240z rod to get the car back on the road. Are all L motor cranks the same?(excluding the diesel) I'm running an L28et crank now. Thanks.

    The BMW Daily Driver Thread

    in Non Tech Board

    Posted

    .

     

    My main complaint on this car is the lack of low-end torque. Long-time HybridZ members know that I’m a lazy and unskilled driver, who would rather cart and whine than strive for self-improvement, and therefore I should probably be driving a diesel pickup with a slushbox…. but that said, on the 1992 325is (before VANOS and all those midrange torque augmentation bits) you really have to whale on the rpms to get the car moving. Handling, however, is almost as good as the hype.

     

     

    Like I've been saying Michael, aint nothing a little boost can't fix! I hope all you BMW guys are aware of the power that guys are making with these motors in stock form once turbocharged!

    It's official Chevy 4.2ltr into a 70 Z Car! Need help Guys!

    in 6 Cylinder Z Forums

    Posted

    I was wondering the same thing, also if you read this technical overview http://media.gm.com/division/powertrain/news/4200_Tech.pdf they talk about metal powder forged rods... are these strong?

     

    awesome info. After reading that I really want to turbocharge one! they've really tried hard to reduce detonation in this motor. I mean you can run 87 octane in it with 10:1 CR! Also curious if a "short 3mm ringland" could be one deficit when trying to boost it. As far as the metal powder cast rods . . .heres what I found:

     

    A company that makes metal powder forged rods, Metaldyne. They have some info on the process.

     

    http://www.metaldyne.com/metaldyne/sections/powdermetal/connectingRods.asp

     

    Here are two bullet points that caught my eye:

    • Meets or exceeds the ultimate tensile and yield strength of forged steel

    • Requires less machining, reducing OEM cost

     

    Check out the videos at the bottom of the page . . .

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