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| 331ci 86GT - Just for fun. (Page 8/8) |
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La fiera
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AUG 18, 10:29 PM
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Is it done Fish?! 330WHP and 345WTQ is my prediction. Good luck mate!
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fishsticks
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SEP 07, 02:03 AM
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| quote | Originally posted by La fiera:
Is it done Fish?! 330WHP and 345WTQ is my prediction. Good luck mate! |
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It is, in fact... -mostly- done. 
I've put a couple thousand miles on it. Getting ready to put it away for the year once the weather changes.
Work has been an absolute killer the last couple months. There are a few things I want to do, but haven't had time. Getting it on a dyno is one of those.
I need to retorque the heads as well I think. I have a (very) small amount of coolant pooling on the back of the block which is either coming from the intake manifold passage or the rear head. No smoke and compression is good on all cylinders so don't think anything major is afoot. I do have a tiny bit of moisture on the breather cap.
The car loves RPM. Lighter valvetrain/bigger cam/improved exhaust so it rips to 6500 in no time.
This winter I need to rethink suspension/aero. The car is kinda scary above 100mph while under throttle because it has so much torque along with the annoying lift Fieros seem to generate.
I have a new Tacoma on order (we had a truck go down and with 335K miles it was time to retire it) so trying not to split my attention too much. I'm also getting married next month. Great time in my life but horrible for working on project toys.
Your latest video popped up for me on YT, which is what actually reminded me to check in here, lol. Is it done yet?
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La fiera
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SEP 07, 09:50 PM
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Glad yours is doing great! Yes, mine is done. Last time I test drove the car tt was acting very erratic,it would cut ignition at 4000rpm. it was a bad ICM.
Now I can fine tune the fueling map. Imworking on getting the tip in throttle crispy clean, it idles beautifully now.
Be careful getting to 6500rpm, I can recall a previous post where your forged piston/rod combo was several grams heavier and you decided not to balance the assembly.
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batboy
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SEP 08, 06:05 PM
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Fun post to read. It feels a little like deja vu all over again. My Fiero SBC V8 project sat neglected for 11 years. Now I'm back working on it again. I'll be watching your progress with interest since we are in parallel universes. You made the exhaust look easy. I might need to talk with you about how to fabricate a decent exhaust system. I thought that I was the only one dumb enough to consider building a HP engine to keep the torque down. I'm using a single plane intake for that very reason. Carry on.
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Patrick
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SEP 08, 08:04 PM
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batboy
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SEP 08, 11:12 PM
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Hey Patrick, there's still a few old-timers around I see. So much for me trying to keep a low profile.
| quote | | This winter I need to rethink suspension/aero. The car is kinda scary above 100mph while under throttle because it has so much torque along with the annoying lift Fieros seem to generate. |
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Been there and done that. I always suspected the floatiness was due to: (1) a sbc with cast iron heads and intake adds about 150 lbs. or more to the rear of the car. (2) Air flows through the radiator, heats up, then becomes turbulent flow under the hood until it's pushed out under the car. (3) A combination of worn suspension parts and sloppy bushings makes things worse.
Me and my car are going on a diet. The new engine will have aluminum heads and intake, along with tube headers, which should reduce weight by over 60 lbs. I moved the battery to the front for better weight distribution. To improve air flow, I installed a chin spoiler which not only funnels air into the radiator, but also generates a downward force. I have vents in the hood which allows some of the hot air an escape route above the car in addition to going under. I have spent a lot of time and money to rebuild and beef up the suspension. I have changed out pretty much all of the rubber bushings for poly ones. After doing most of these mods, my Fiero drove great and was no longer floaty at speed. Too bad the engine was toast.
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mafv8
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SEP 09, 03:48 PM
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Keep the updates coming, good to see a couple of SBC Fiero projects going. ------------------
84SE, aero body, 4 speed and an injected 355 V8
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