16V max HP
#1
16V max HP
So if the fuel system could supply, what's the max horsepower a USA 4.5L could deliver and still be streetable.
If 225 is stock, then easily 325 (SC). Push a little more 350. Could the pistons and head gaskets handle the 400 mark?...........
If 225 is stock, then easily 325 (SC). Push a little more 350. Could the pistons and head gaskets handle the 400 mark?...........
#7
Originally Posted by toofast928
I'm planning on adding a SC and convert to MAF. That should give me 340 at the crank. But I was just wondering at what HP the bottom end begins to break?
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#9
we managed 310 rwhp with cats and stock manifolds from a 2v euro
I can't seem to get more than 305rwhp with headers and CIS injection
#10
what about my 1979 4.5 liter with cis. think of have a blown beast soon as well i know our cam are more agressive than the 80-82. first stage for me is getting my gauges to monitor the system, fuel pressure, a/f ect. by then andy should have twin screw kit out. i'll drop him 3k start. i was honestly thinking off trading my near perfect 928 for a turbo those guys make hp alot easier because there already turbo.
#12
Originally Posted by John Veninger
To bad you didn't try it with headers or were those stock manifolds from an 86?
I can't seem to get more than 305rwhp with headers and CIS injection
I can't seem to get more than 305rwhp with headers and CIS injection
Thanks in advance
JF
#13
It's a 5.0L using Euro top end. Dave Lloyd hit 307rwhp, but I have a bit more torque.
Click the link to the EuroS in my sig. You can see my dyno and Dave's at the racing site. Waiting to see what Stan's new motor does!
Click the link to the EuroS in my sig. You can see my dyno and Dave's at the racing site. Waiting to see what Stan's new motor does!
#14
Administrator - "Tyson"
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Any stroker 16V's out there? I know many people will squak at this idea being a waste with the S4 heads out there. Chevy is proving over and over 32 valve's are not needed for big hp numbers.
#15
Originally Posted by John Struthers
Your talking a 4.5L, AFC-L injected, right?
If it's an 80' thru 82' you should be nearer 9.0 : 1 .
Perhaps a fatter/metal composite gasket to lower the CR would be in order.
If it's an 80' thru 82' you should be nearer 9.0 : 1 .
Perhaps a fatter/metal composite gasket to lower the CR would be in order.