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Old 12-15-2002, 15:21   #1 (permalink)
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which mods????

have xh ute with pacemakers, high flow cat and 2.5 inch exhaust. Am looking into the following mods:

au heads gt40p
3.73 diff ratio
king dragon filter
cam upgrade
port/mill current head

any suggestions or comment about what i should look at doing for power and torque gains???

cheers
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Old 12-16-2002, 01:57   #2 (permalink)
100 SPEED LIMITED SILVAEA
 
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how bout a blower then?
8psi would wake the beast up to run more boost you would be required to do some mods to the rest of ur car
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Old 12-16-2002, 02:20   #3 (permalink)
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It depends on how much money you have to spend. First, look at the heads and intake. At around $1000 a pair, the GT40P's have good flow for a good price. For a few more kw, look at some alloys, but add a few $1000 to the price. To go with the heads, get a GT40/edelbrock/trickflow intake because the stock intake is the most restrictive part of the engine. Then look at a cam and roller rockers. The crane 2031 is a very good cam for mid range torque and high rpm improvement, and is EEC friendly (there are lots of good cams too). You will also need a larger throttle body, MAF and injectors to cope with the extra power.

BTW, porting your stock heads will probably give you the same flow as the GT40P's. If you go for the GT40P's you will need new 90 degree sparkplug leads to fit. Also, GT40P spark plugs are expensive at around $20 each.
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Old 12-17-2002, 01:18   #4 (permalink)
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Note about the Crane 2031 cam. Like the Cobra/Sprint cam for which it is an excellent replacement this cam requires 1.7 ratio rockers as opposed to the more common 1.6 ratio.
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Old 12-17-2002, 22:32   #5 (permalink)
Two SC 61's = trouble
 
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In some ways with these early V8's the best way to go maybe is forced induction.. 320 to 400 h.p easy and can be taken off any time..Like an afternoon putting on a blower.. ok one big hit on expense but it's known power.. But in N/A "ALL" the parts are required costing the same or more...

Check this sight out O/K it's U.S and mustangs but the engines are bassically the same..Check the specs that some of these guys run.. some are quite std.. some not..
http://www.corral.net/forums/forumdi...?s=&forumid=71
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Old 12-17-2002, 23:15   #6 (permalink)
methanol injected clevo
 
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the sprint cam is MILD, believe me..

Go the E303! if you get the better induction bits :) (thats my next part)
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