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Hey guys, I just got my car back from the dyno and I was a bit underwhelmed with the results - 156hp and 161ft/lb at the wheels (curves with AFR attached). The long block was assembled by a pretty reputable builder with the following specs: Bored out L28 to 2.95L F54 block with a N47 head 11.3:1 CR 290° cam with 0.490" lift Then I came along and messed something up with the following: MSA 6-1 header into 2.5" exhaust MSD 6AL-2 programmable ignition box triggered by a 280zx dizzy Cannon intake manifold Weber DCOE40s 36mm chokes 160 main 160 air correction F2 emulsion tube 3.5 A/V 55F9 idle The timing curve was initially dialed in by the tuner to eliminate knock with the 94 octane that I delivered the car with. The dizzy is locked out at 35°BTDC and the timing map they arrived at is attached. After the 1st round of results, I asked them to run some higher octane to get in all the timing that I thought was left on the table to control the knock. With 108 octane the car didn't pick up any power from advancing the curve that was developed with the 94. I found that a bit odd, but not sure how you argue with the data. The dyno was an eddy brake Land and Sea Dynomite axle hub set up. Let me know what your thought are on where I could look next, or if you think something is really bottlenecking the output. From all the searching I've done, it seems like all the hardware should support 200+whp, but we're not even close. Thanks! L28 dyno.pdf
Hey guys. I'm a whore for data/info. I was wondering if those of us who have put their cars on dynos could share the results. I'm curious to see what kinds of mods give what kind of power, and what kind torque curves, how soon power comes, etc.... HOWEVER, to make certain this thread is not simple dyno sheet porn/bragging (which is not a problem here, porn and brag all you want. that's PART of the fun), I'd like to put some rule that will actually make the thread useful and easier to read.... 1. L28e blocks only. i'm curious about other engines but the second people post l24, or rb engines, the whole thread will loose focus. OVERSIZED L28 welcomed (strokers and bored engines, for e.g.). 2. Each posted sheet must be accompanied by the following info, in the following format (make certain you kindof get it right, but let's not go overboard about the form here): 1- car: year, model. 2- State of the engine: stock, stock rebuilt, slight mods, heavy mods, total-batshit-crazy-overboard-modded... 3- peak power @ RPM + boost level (PSI) if applicable 4- peak torque @ RPM + boost level (PSI) if applicable 5- short list of relevant mods if applicable, INCLUDING: fuel/ignition management, high compression pistons, turbo size/type, piston oversize and whatever else you did that could make a difference. for parts that are standards and don't really contribute like intercoolers and oil pumps and what not, no need for details. For other mods, like a crazy-fucked-up-pink-shifter-with-part-of-christian-relic-inbeded, well, if it doesn't add hp, don't list it. 6- anything else you feel might HELP OR HINDER your hp figures, like for my car, it's got a megasquirt with a tune that my 5 year old probably could improve, so yeah, that does not help. IF your engine is stock, please write the mileage here! it'd be fun to see how much mileage has eaten how many hp. 7- anything else that's interesting about your engine that can have an impact on the topic. *post dyno sheet* if you actually have a paper sheet, just take a photo with your cell phone or something, and post it. just make certain it's clear. if you don't have a sheet, just the numbers, well that's not as cool, but still interesting. post it! Comment posts ARE welcomed. I mean, i'm doing this so we can look at the dyno results and then talk about them... just make certain you don't post a sheet and a comment in the same post, i guess, to keep things clean. don't be afraid to post a sheet, then comment on whatever else in another, immediate post (like, two in a row). oh yeah! all dynos are different, there are different types, and some have to be corrected for altitude and all that. yeah, yeah, sure... that's 100% right. but I'm not doing this to compare who'd got the biggest dic... ah, HP numbers! this is only to get ballpark ideas of what mods give what kind of power. All right guys. go for it! Seb. PS: if you have a pre- mod sheet and a post- mod DYNO result sheet, you AUTOMATICALLY become king of the thread. there may be more than one king. deal with it.
HybridHydra posted a topic in The Tool ShedWhat modifications can I do to my L28E with N42 block and head, to reach around 400-500 hp? I have NO budget but the TC24-B1(z) is completely out of my reach. Transmission upgrades for the increased hp engine. I'm thinking a OS-Giken Super Single Clutch. Is there a difference between the NS081-AB8 and the NS081-AA8?