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#16 (permalink) |
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i need to ask something. anyone had problems with the stock rod? the stock rod its a very strong one and IMO the stock one can handle a lot of power. If someone gota interest in a forjed rod for our engine, thats a good option for those who wants run N/A to make it lighter. its a good option make a forged custom rod to the fe3 engine with the F2T crank and FE3 pistons.
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Turbo Mx-3 GS with FE3N Engine Swap with 425whp
Owner of a 10 seconds FWD Mazda http://www.youtube.com/watch?v=MJqBkD2zwgA#GU5U2spHI_4 |
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#17 (permalink) |
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Investing on custom short rods to accommodate stock pistons isn't like betting on the wrong horse. It's like betting on a jar of hide glue...
I'm a bit in the middle of things, if the rods are good for revving a boosted stroked DOHC I'd be in, but there's certain affairs in the way that will have a strong impact on future development of the engine, can't say anything until I've gotten them cleared. |
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#18 (permalink) |
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its still horrible. no matter how many times you look it up :-(
piston pin height is the way to go for any serious power. if you just want the 2.2 bottom end, use an f2t. if you want the top end, use an fe3, if you want both, don't skimp. just my thoughts, mileage may vary. fred. |
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#20 (permalink) |
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But the question is, anyone had problems or broke a Stock Rod?
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Turbo Mx-3 GS with FE3N Engine Swap with 425whp
Owner of a 10 seconds FWD Mazda http://www.youtube.com/watch?v=MJqBkD2zwgA#GU5U2spHI_4 |
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#21 (permalink) |
![]() Join Date: Mar 2002
Location: 5900 ft above you aka the highest elevation state in the USA,
CO,
USA
Age: 23
iTrader: (1)
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you can always do like randys did, and use some slightly modded v8 rods with custom pistons.
thats what i did on the KL, used chevy wrist pin ford stroker 347 rods. 8 h beams for $300 FTW |
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94 MX3: 400+ whp E85 alcoholic. 13.0 @ 114
93 Nissan Pathfinder: Remote mounted T3 turbo 01 Yamaha YZ250 04 Suzuki GSX-R600 12.55 @ 115.4 98 Ford Ranger 3.0L |
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#22 (permalink) | |
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You are onto it stroker.
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extended use over the 500 crank hp mark upto 7500rpm = bent rods a few runs down the drag strip doesnt count as extended use. hence you have been ok so far :-) i'd say 400whp or so (450crank) is a reliable limit for them with a stock stroke!!! once you change that, the ball game is entirely different. (ie, worse) fred. |
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#23 (permalink) |
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I haven't had any problems what so ever with my rods in my FE3.
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91' Lx to 89' GT Swap/T-Bird Turbo/Zebel Housing/2.5" Downpipe,Test Pipe,Sebring Exhaust/Probinator Chip/15psi/Walbro 255LPH Fuel Pump/8.5mm Magnecor Wires/Msd Blaster 2/P&P Head/Fidanza Aluminum Flywheel/Exedy Clutch/AWR Mounts/AWR Trailing Arm/GT Rear Disc Conv/Subaru Front Dual Calipers/Pacesetter Short Shifter/Upper Bar from Bulldog Racing,Rstb and Lower Tie Bar/ 2 MazdaSpeed Bucket Seats with 4 point Harness.
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#24 (permalink) | |
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"A few runs" with 550whp+ when you use slick tires, a lot of boost, some nitrous, and wheelie bar, the engine suffers more than a 300whp engine in a street car. |
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Turbo Mx-3 GS with FE3N Engine Swap with 425whp
Owner of a 10 seconds FWD Mazda http://www.youtube.com/watch?v=MJqBkD2zwgA#GU5U2spHI_4 |
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#25 (permalink) |
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A circuit track would count ase extended use. The biggest difference is that while a drag engine will see enormous rod forces, the track engine will se full power for much, much longer time without chance to really settle down in between, also the engine may be over revved past the shift point because of track topology and so on.
When the rod is run at great load, the material will absorb a part of the mechanical energy, and the energy can cause alterations in the metal properties. On a drag car, the engine only needs to provide full power for a number of seconds, and is then let cool down. On a track, even one lap will take minutes and have a large portion of it driven at full power. The process is partially reversible, but the amount is rather a constant number rather than percentage; in a drag engine, the reversibility will cover most of the alterations, but after a long and heavy run, the same amount of reversibility will only recover a small fraction. |
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#26 (permalink) | |
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Quote:
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-Sometimes you have to lie to find out what the truth is....
89MX6 GT 4WS 90 Probe GT Quote:
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#28 (permalink) |
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i agree that the stock rods are very strong. But a new set of lighter forged rods that are balanced within +-1 gram with ARP bolts for $260 would be a steal. I am not positive on them being lighter or if they come with arp bolts, because I am still waiting for a reply.
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90 MX6 GT http://www.cardomain.com/ride/2036393
Stock: 15.446 @ 88.78 F2T Best: 12.71 @ 104 FE3T: 11.941 @ 99.03 (missed 4th) Best MPH: 12.24 @ 117.03 videos:http://videos.streetfire.net/uploaded/Shwine617.htm |
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#30 (permalink) | |
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STW is right on the money!
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the rods have a limit, they are not golden. everything has a limit. the guy that bought fallguys engine found it before the rest of us after a number of months hammering it hard. you can build your engine to put out 500hp for a few months or for a few 100 thousand k's. its up to you. new rods provided that they are meatier (not lighter) with better fasteners to match are a good thing. fred. |
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