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PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Dyno Tune or Street Tune

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Old Oct 2, 2020 | 09:31 PM
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Default Dyno Tune or Street Tune
Earlier this year I finished re-building an LS1, 243 heads, TSP cam, rings, bearings, oil pump, etc.. I'm going to start the car (67' Camaro) at my house next week. my question is should I get a dyno or street tune? Is it safe to push a freshly re-built engine? or am I just worrying too much. thanks.
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Old Oct 2, 2020 | 10:36 PM
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If you didn't change anything that would affect the tune you should be fine.
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Old Oct 2, 2020 | 10:42 PM
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Only things stock is pistons, rods and crank. TSP cam, Ls6 intake, 243 heads, I forgot to mention that.
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Old Oct 2, 2020 | 10:57 PM
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Which cam?
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Old Oct 3, 2020 | 12:11 AM
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Torquer V2


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Old Oct 3, 2020 | 12:19 AM
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You will need a tune for sure that is a decent sized camshaft that will not play well untuned. A good tuner will dyno then drive on the street to tweak any drivability issues.
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Old Oct 3, 2020 | 12:23 AM
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Thanks I needed some reassurance. I thought I needed a break in period before the dyno.
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Old Oct 3, 2020 | 12:32 AM
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Originally Posted by avchz
Thanks I needed some reassurance. I thought I needed a break in period before the dyno.
What are your plans for the tune? Tow it to the tuner, send in the PCM for a base tune and drive to the tuner? I'd install a wideband to monitor AFR's, have you thought about buying HP Tuners and getting started with a remote tune, then take it and have it dyno tuned? I started off with a mail in tune then bought & learned HP Tuners and haven't looked back. The GEN 3 tuning is pretty easy compared to GEN4 plus tuning.
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Old Oct 3, 2020 | 01:16 AM
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Originally Posted by RedXray
What are your plans for the tune? Tow it to the tuner, send in the PCM for a base tune and drive to the tuner? I'd install a wideband to monitor AFR's, have you thought about buying HP Tuners and getting started with a remote tune, then take it and have it dyno tuned? I started off with a mail in tune then bought & learned HP Tuners and haven't looked back. The GEN 3 tuning is pretty easy compared to GEN4 plus tuning.
I got a stand-alone harness and PCM from PSI, the tune it has right now is enough to start the car. Then I would tow it to a local tuner for a dyno tune here in my area (couple blocks away). I will keep the AFR gauge in mind. But I don’t think I will do any tuning my self for now I don’t have a PC and This is my first LS build so I’m a beginner to all this. I’m more accustomed to carbs on big block Chevy. That’s what I had in the car before this aluminum piece of EFI. Looks prettier and is lighter let’s see how it performs.
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