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Old 03-23-2005, 08:06 PM   #1
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Building the new motor

Hey turbo guys. What is everybody using as far as compression ratios? Looks like I have my choice of 9-1 or 10.5-1. Im planning on getting up to the 350+ hp range. The car already made about 220 before the rings blew. Im using a garrett t3 .42 ar with the jgs manifold.


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Old 03-23-2005, 08:29 PM   #2
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Personally, I would go for 8:1. The lower the compression the more boost can be run safely.
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Old 03-23-2005, 09:25 PM   #3
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The rings didnt blow because of the 220 the rings blew because of lack of tuning or poor tuning

The SVT will take 320+HP in its stock form no problem but tuning is the key

You need crower rods , billet mains ETC

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Old 03-23-2005, 11:54 PM   #4
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With 8-1 I think the car would be very sluggish off the line, I dont get full boost till about 3800.

Tom, LOL I think im just going to have to go with your shortblock and pro tuner. Yeah I told the dyno guys to just get it tunned fast. Well now i have 4 pistons that are very mad at me. Looks like I get to save up for about 2 months. I guess when Im ready to order with you, Tom we can further discuss the compression and what not to suit my needs.
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Old 03-24-2005, 06:30 AM   #5
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Sure we can , I would shoot for 8.5 to 8.7 this works well for the street and the SVT seems to be ok with it

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