Guest subdermal Posted June 20, 2003 Share Posted June 20, 2003 Just got back from the shop that's been doing my engine work (yes I'm one of those dweebs who needs someone else to build their engine). We finally got to do my dyno run... 471 hp @ 5200 520 fpt @ 4300 I know there's guys here who've done better, and who've done the work themselves, but I am one happy camper right now Quote Link to comment Share on other sites More sharing options...
80LS1T Posted June 20, 2003 Share Posted June 20, 2003 471 hp @ 5200 520 fpt @ 4300 Is that at the wheels? I would say if thats at the wheels then theres a good reason why you are such a happy camper! Heck even if thats at the flywheel you should be happy! You'll still have like 400HP/442 ft. lbs. (15% drivetrain loss) at the wheels! Yeah most of use do our own work but I dont think too many of use actually build the engines. I did but thats only because I had the facilities to do it. What kind of car are you putting it in? Guy Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted June 20, 2003 Share Posted June 20, 2003 subdermal what was the engine combo used Quote Link to comment Share on other sites More sharing options...
Guest subdermal Posted June 20, 2003 Share Posted June 20, 2003 That's at the fly... it'll be a while before the engine's actually in the car (a 1974 260z). The car and the engine are in the same building now at least, which is a step up Quote Link to comment Share on other sites More sharing options...
Guest subdermal Posted June 20, 2003 Share Posted June 20, 2003 subdermalwhat was the engine combo used 406sbc w/ centerport cooling trickflo aluminum heads (ported) speedpro H107CP pistons comp cams camshaft CCA-12-212-2 edelbrock performer rpm intake crane rockers 11744-16 650 demon carb Quote Link to comment Share on other sites More sharing options...
Guest Potent68 Posted June 20, 2003 Share Posted June 20, 2003 I'm impressed. I'm so sick of seeing people who didn't grow up playing with carbuerators thinking they need 800cfm's to make decent power! Sounds like a very nice setup. Congratulations! Tom Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted June 21, 2003 Share Posted June 21, 2003 .., 471 hp @ 5200 & 520 fpt @ 4300.., and who've done the work themselves, but I am one happy camper right now Subdrml, Dont apologize for not building the engine...who cares who built the engine as long as it is what you want and dependable relateive to your needs! Those are excellant numbers-good choice of eng.components. BTW: did your engine dyno include the BMEP & BSFC numbers? If it did could you post them on this thread; if possible-could you post them in 500rpm increments Kevin, (Yea,Still an Inliner) Quote Link to comment Share on other sites More sharing options...
DavyZ Posted June 22, 2003 Share Posted June 22, 2003 Not everyone has the tools/time/money to build an engine. Having one custom built is fine, so don't short change yourself! Good luck with handling all that power Davy Quote Link to comment Share on other sites More sharing options...
Guest subdermal Posted June 22, 2003 Share Posted June 22, 2003 did your engine dyno include the BMEP & BSFC numbers? If it did could you post them on this thread; if possible-could you post them in 500rpm increments ? Sure thing - click here for the full dataset. Re: engine building - I'm overjoyed with the engine, regardless of who built it. I'm just new to this, and not used to having a hobby that I know so little about Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted June 23, 2003 Share Posted June 23, 2003 Subdrml, The link you offered for viewing your dyno run is broken link: any idea why? I am definately interested in seeing your dyno data. Any idea why your link is not accessible? Kevin, (Yea,Still an Inliner) Quote Link to comment Share on other sites More sharing options...
Tim240z Posted June 23, 2003 Share Posted June 23, 2003 Subdrml' date=' The link you offered for viewing your dyno run is broken link: any idea why? I am definately interested in seeing your dyno data. Any idea why your link is not accessible? Kevin, (Yea,Still an Inliner)[/quote'] Hmmm...I could see it earlier, but not now either....looks like a server problem.....maybe too many hits? Tim Quote Link to comment Share on other sites More sharing options...
pparaska Posted June 23, 2003 Share Posted June 23, 2003 Don't feel bad about not building it yourself. I paid someone to build my 406 shortblock (still on the stand). $1600 for a balanced and blueprinted, forged piston shortblock (minus cam and timing set), block supplied by builder, all other parts new. I couldn't touch that, as machining prices around me are high. Those are some fine numbers! Congrats! What are your plans for getting the torque to the ground? Quote Link to comment Share on other sites More sharing options...
Guest subdermal Posted June 23, 2003 Share Posted June 23, 2003 Subdrml' date=' The link you offered for viewing your dyno run is broken link: any idea why? I am definately interested in seeing your dyno data. Any idea why your link is not accessible? Kevin, (Yea,Still an Inliner)[/quote'] Yeah, lots of ideas, and they all have to do with my !$#%!kin ISP and them not listening to me last night when i was kind enough to explain the problem to them... I've got 8 websites that have now been down for 16 hours, plus every other customer of theirs within a 12 block radius, because their tech last night was too ignorant to be put in charge of a taco stand much less a commercial-class network... grrr.. okay done venting now... Sorry for the inconvenience. All I can suggest is "try again later"? I can't even post them elsewhere because right now I cant get at them either. Quote Link to comment Share on other sites More sharing options...
Guest subdermal Posted June 23, 2003 Share Posted June 23, 2003 Those are some fine numbers! Congrats! What are your plans for getting the torque to the ground? Thank you! My driveline plans for now include a reinforced th350, a light foot, and heavy prayer. Next season I hope to have an LSD unit from a 300zx, although I have recently heard a rumour that a ford 9" isn't a bad swap... more research required... Quote Link to comment Share on other sites More sharing options...
Drax240z Posted June 23, 2003 Share Posted June 23, 2003 Just a note on the data sheet. Anyone else find it satisfying to see that 470+hp is produced with around 520cfm of air flow? I just hear of over carburation in abundance (not necessarily on this board) and its cool to see numbers to prove that you don't need a 1050cfm carb to make 500hp. Quote Link to comment Share on other sites More sharing options...
Guest subdermal Posted June 23, 2003 Share Posted June 23, 2003 Just a note on the data sheet. Anyone else find it satisfying to see that 470+hp is produced with around 520cfm of air flow? I just hear of over carburation in abundance (not necessarily on this board) and its cool to see numbers to prove that you don't need a 1050cfm carb to make 500hp. And just a note on your note... when I bought the car it had a beat up 400 in it (all I kept was the block) and the previous owner had dual 500s on it' date=' with a stock motor Way waaaay down the road I may convert to EFI though - carbs have always confused me, but plugging in a laptop sounds like the perfect way to tune/fix something BTW the site is back, here is the link again Quote Link to comment Share on other sites More sharing options...
Guest BigWhyteDude Posted June 24, 2003 Share Posted June 24, 2003 Hey Drax240z what kind of carts are those in your sig? Quote Link to comment Share on other sites More sharing options...
jt1 Posted June 24, 2003 Share Posted June 24, 2003 Subdermal, those are some nice results. What was the compression ratio and what kind of gas? Do you have any flow data on the heads? Were they the 23 TrickFlows? Thanks, John Quote Link to comment Share on other sites More sharing options...
Drax240z Posted June 24, 2003 Share Posted June 24, 2003 They are Formula SAE cars. Check out http://www.uvic.fsae.ca for more info. 1000cfm on a stock motor. That sounds like the typical over-carbing that I hear about time and time again. As for converting to EFI, I agree that the laptop sounds like the perfect way to tune an engine. Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted June 25, 2003 Share Posted June 25, 2003 Finally got to see you dyno run; excellant numbers BTW. I too am curious about the Cyl.Head's Intake/Exhaust Port cc's and your cam spec's. Notice on your dyno run where your BSFC is at its lowest number-this is where your engine will make its best MPG...as if we care about MPG w/an engine like that. As for your BMEP-when this number is at its highest your peak torque will begin to surface. I too agree that it is nice to see small CFM carbs on a well built engine. Anyone who doesnt understand what an engine needs-just look at the CFM column of Subdrml's dyno run. The smaller carb's aid in "Throttling" the engine-this has a better effect on airflow velocity and makes for a less "Peaky" engine: CUDO's to your engine builder. Also notice how the VE% changes w/engine speed. BMEP & BSFC are the two items that one isnt able to calculate w/paper theory calculations-it is something you have to get from R&D. I've tried & I've tried-and to no avail Thanks for posting your dyno run-it is ineresting to see a complete dyno run & the numbers that it generates. Kevin, (Yea,Still an Inliner) Quote Link to comment Share on other sites More sharing options...
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