what should i buy 1st
05-04-2006, 06:32 AM
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what should i buy 1st
just bought a 97 active thunder 454 mag carb.running 66.7 mph with 23p mirage.want to go faster and not sure what i should do 1st.motor is all stock.motor is also spinning 5100 rpm.should i prop up?was thinking of building a 496 this winter but would like to pickup some mph this summer
05-04-2006, 06:43 AM
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Re: what should i buy 1st
Originally Posted by awsomethunder
just bought a 97 active thunder 454 mag carb.running 66.7 mph with 23p mirage.want to go faster and not sure what i should do 1st.motor is all stock.motor is also spinning 5100 rpm.should i prop up?was thinking of building a 496 this winter but would like to pickup some mph this summer
if you are running at 5100 and trimmed properly i would try a labbed finished 25p mirage that should put you at around 4900 and that is good with a 454 and you should pick up a couple mph. but you will lose some low end and mid range.
05-04-2006, 07:28 AM
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Re: what should i buy 1st
Originally Posted by awsomethunder
just bought a 97 active thunder 454 mag carb.want to go faster and not sure what i should do 1st. was thinking of building a 496 this winter but would like to pickup some mph this summer
Yes, try props---------AND (if you have some spare bucks) I would add a decent breathing aftermarket exhaust system like a Stainless Marine or GIL or something comparable.
The aftermarket exhaust system isn't going to help much with a stock engine, BUT as you modify your engine with more hi-perf parts you will notice an increase in power. Besides, most aftermarket exhaust manifold systems are made of aluminum and will be much lighter than the stock Merc HEAVY cast iron system you now have, plus it will dress up your engine and give it some rumble/thunder.
Adding hi-perf induction parts (heads, porting, intake manifolds, cams, cubic inches, etc.) aren't going to do you any good unless you have a good breathing exhaust system to handle it. Hope this helps---have fun!
05-04-2006, 04:45 PM
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Re: what should i buy 1st
I wouldn't run your oil much hotter than 240 degrees.
You need to tell us for much money you want to spend if you want us to help you spend it!
You need to tell us for much money you want to spend if you want us to help you spend it!
05-04-2006, 05:40 PM
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Re: what should i buy 1st
I would wait and put the money into the new motor. Buy things that can be used w/the end product. Like a good exhaust. Don't pay 4 it twice and accumulate a garage full of parts that were never effective. Decide what the ultimate goal is and then buy parts that can be used now and then. Don't reinvent the wheel.
Buying props, unless you ultimately luck out and get a set that will work on the end product why spend the $'s this yr?? Just my .02, been there done that.
Buying props, unless you ultimately luck out and get a set that will work on the end product why spend the $'s this yr?? Just my .02, been there done that.
