LT1-LT4 Modifications 1993-97 Gen II Small Block V8

How bad do i need a tune?

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Old May 24, 2005 | 06:26 PM
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Question How bad do i need a tune?

My engine well be up and running by the end of this weekend. I plan on going on a 400 miles trip on the 10th of June. So that gives be abnout 2 weeks. I have a cc305, port heads, 11:1 cr, forged bottom-end, and almost all of the bolt-ons. I was wondering with this set-up would it be bad to drive 400 miles there and back without a dyno-tune? or should i try and see if i can get a tune before i go? I plan on babing the car the hole time and putting as much miles on it as i can before i go. I have been without my car for almost 10 months now and i'm going to give it by best to have it ready for the trip.

Thanks!
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Old May 24, 2005 | 06:52 PM
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Originally Posted by Lt1Camaroz28
My engine well be up and running by the end of this weekend. I plan on going on a 400 miles trip on the 10th of June. So that gives be abnout 2 weeks. I have a cc305, port heads, 11:1 cr, forged bottom-end, and almost all of the bolt-ons. I was wondering with this set-up would it be bad to drive 400 miles there and back without a dyno-tune? or should i try and see if i can get a tune before i go? I plan on babing the car the hole time and putting as much miles on it as i can before i go. I have been without my car for almost 10 months now and i'm going to give it by best to have it ready for the trip.

Thanks!
You should at least get a mail-order tune...driving that far will be killer on your gas mileage.
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Old May 24, 2005 | 08:13 PM
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Originally Posted by RamAir95TA
You should at least get a mail-order tune...driving that far will be killer on your gas mileage.
But well it hurt my engine?
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Old May 24, 2005 | 08:43 PM
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Originally Posted by Lt1Camaroz28
But well it hurt my engine?
It most likely wont run well enough to drive it 400miles un tuned. For the cost of getting a mail order tune its not worth it to drive around without one.

Plus, if you have bigger injectors i wouldnt even start it without a tune.
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Old May 25, 2005 | 04:08 PM
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I ran my cc305 with ported heads, headers, and etc... for several months without a tune. Got good gas mileage too. But, I didn't have bigger injectors. Like he said above, if you have bigger injectors, then don't try it. You may run into some stumbling when you pull off though.
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Old May 25, 2005 | 05:18 PM
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Originally Posted by biltLT1
I ran my cc305 with ported heads, headers, and etc... for several months without a tune. Got good gas mileage too. But, I didn't have bigger injectors. Like he said above, if you have bigger injectors, then don't try it. You may run into some stumbling when you pull off though.
Looking at your set-up it's almost the same as mine. How do you like it? I don't have bigger injectors yet. But i'm going to put them on when i spray it. I guess i'll see how it runs and go from there. Thanks!
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