PRC 250CC aftermarket castings/g6x3 cam 505rwhp/464rwtq
03-31-2012, 06:03 PM
#1
PRC 250CC aftermarket castings/g6x3 cam 505rwhp/464rwtq Car is wicked fast. 505RWHP 464 RWTQ
7200 RPM rev limiter. Car didnt start dropping hp until about 65-6600 rpm
Driveability is decent enough. It obviously does not like to be driven with the clutch out at parking lot speeds etc. It will buck slightly in too high of a gear if rpms drop below 1800 or so. Other than that I can live with it just fine. 1st and 2nd gear are useless even with my 305 555r drs. Not much traction in second even from a 40-50 roll.
Detect a slight power loss from bolt on form up to maybe 3k rpm or so. It comes on so quick it doesnt really bother me. Cant notice a drop off in power SOTPants until about 6600rpm. So just like the graph would indicate.
Here is vid
http://www.youtube.com/watch?v=pZN_seeuWTQ
And the graph
7200 RPM rev limiter. Car didnt start dropping hp until about 65-6600 rpm
Driveability is decent enough. It obviously does not like to be driven with the clutch out at parking lot speeds etc. It will buck slightly in too high of a gear if rpms drop below 1800 or so. Other than that I can live with it just fine. 1st and 2nd gear are useless even with my 305 555r drs. Not much traction in second even from a 40-50 roll.
Detect a slight power loss from bolt on form up to maybe 3k rpm or so. It comes on so quick it doesnt really bother me. Cant notice a drop off in power SOTPants until about 6600rpm. So just like the graph would indicate.
Here is vid
http://www.youtube.com/watch?v=pZN_seeuWTQ
And the graph
Last edited by UltraZLS1; 03-31-2012 at 06:15 PM.
04-01-2012, 08:56 AM
#4
He did say that T-Rex cammed ls1 m6 cars make ~420rwhp on his dyno.
I know some people have reported ~500rwhp cam only. Honestly in my opinion I think it is just dyno differences. A lot of guys have put in the g6x3 and I have seen numbers as low as 455rwhp cam only m6 and as high as like 495rwhp cam only m6.
btw...thanks for the kind words
04-01-2012, 09:14 AM
#6
In all honesty my car in bolt on form would beat my car now. I cant get any traction up to like 70 mph. I really dont think I even need this much power on the street lol. You cant even use it.
Regardless of if the numbers are good or not...I am 100% satisfied...it doesnt seem slow at all.
04-01-2012, 10:36 AM
#7
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How much air pressure are you running in your 555'rs???
I run mine around 23psi for street driving and drop them down to about 15 or so when I get to the track. Your lack of traction has me thinking someone has FULL 40psi in them. Close friend of mine has Stock heads G6x3, Fast 102, Kooks LT, UD pulley, made 488whp/44x wtq SAE, and 4.10's. He says 1st is a spin fest if you just Plant the pedal to the floor. But 2nd comes on strong. Hes running the NT05r w/ around 25psi.
I run mine around 23psi for street driving and drop them down to about 15 or so when I get to the track. Your lack of traction has me thinking someone has FULL 40psi in them. Close friend of mine has Stock heads G6x3, Fast 102, Kooks LT, UD pulley, made 488whp/44x wtq SAE, and 4.10's. He says 1st is a spin fest if you just Plant the pedal to the floor. But 2nd comes on strong. Hes running the NT05r w/ around 25psi.
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04-01-2012, 10:48 AM
#8
How much air pressure are you running in your 555'rs???
I run mine around 23psi for street driving and drop them down to about 15 or so when I get to the track. Your lack of traction has me thinking someone has FULL 40psi in them. Close friend of mine has Stock heads G6x3, Fast 102, Kooks LT, UD pulley, made 488whp/44x wtq SAE, and 4.10's. He says 1st is a spin fest if you just Plant the pedal to the floor. But 2nd comes on strong. Hes running the NT05r w/ around 25psi.
I run mine around 23psi for street driving and drop them down to about 15 or so when I get to the track. Your lack of traction has me thinking someone has FULL 40psi in them. Close friend of mine has Stock heads G6x3, Fast 102, Kooks LT, UD pulley, made 488whp/44x wtq SAE, and 4.10's. He says 1st is a spin fest if you just Plant the pedal to the floor. But 2nd comes on strong. Hes running the NT05r w/ around 25psi.
29-30psi. Dont want to run much lower daily driving.
The rear rims are 20 x 11...so its got a nice full contact patch for the tire size.
I think part of the problem is that it was about 55 outside. In the summer at 75-80 temps with a nice warm road 2nd gear may get useable...we will see.
It is not quite as crazy as my h/c ls1 was as far as traction problems...but that car had no suspension mods and 17 inch 275 kumho street tires.
I have trailing arms, toe rods, diff bushings and subframe bushings. As well as a good alignment. Not much else I can do to get it hooking better with the current rubber.
The nto5r is a stickier tire...but have read you only get about 3-5 k out of them. So I went middle of the road with 555rs because people are reporting about 10-15k from them.
04-01-2012, 06:00 PM
#9
What are the came specs?
04-02-2012, 12:30 PM
#11
Don't sweat the dyno numbers....go kick some @$$ at the track!
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04-02-2012, 09:18 PM
#15
29-30psi. Dont want to run much lower daily driving.
The rear rims are 20 x 11...so its got a nice full contact patch for the tire size.
I think part of the problem is that it was about 55 outside. In the summer at 75-80 temps with a nice warm road 2nd gear may get useable...we will see.
It is not quite as crazy as my h/c ls1 was as far as traction problems...but that car had no suspension mods and 17 inch 275 kumho street tires.
I have trailing arms, toe rods, diff bushings and subframe bushings. As well as a good alignment. Not much else I can do to get it hooking better with the current rubber.
The nto5r is a stickier tire...but have read you only get about 3-5 k out of them. So I went middle of the road with 555rs because people are reporting about 10-15k from them.
The rear rims are 20 x 11...so its got a nice full contact patch for the tire size.
I think part of the problem is that it was about 55 outside. In the summer at 75-80 temps with a nice warm road 2nd gear may get useable...we will see.
It is not quite as crazy as my h/c ls1 was as far as traction problems...but that car had no suspension mods and 17 inch 275 kumho street tires.
I have trailing arms, toe rods, diff bushings and subframe bushings. As well as a good alignment. Not much else I can do to get it hooking better with the current rubber.
The nto5r is a stickier tire...but have read you only get about 3-5 k out of them. So I went middle of the road with 555rs because people are reporting about 10-15k from them.
I'd have gotten 15K out of my NT555r's, but I've done a few too many ridiculous burnouts on them, so I didn't quite make it there. I think I might just put regular street tires back on it because the lack of traction to me is actually funny and amusing...then get a seperate set of wheels/tires for the drag strip.
04-02-2012, 10:29 PM
#16
HAHA, mine is the same way, like I said over on the other forum (I'm MikeOD on there)...I don't think I lost anything down low, and my car comes on so dam strong up top...it's a whole new animal on the highway.
You just need some warmer pavement, it'll get stickier. It's still really early in the season.
I'd have gotten 15K out of my NT555r's, but I've done a few too many ridiculous burnouts on them, so I didn't quite make it there. I think I might just put regular street tires back on it because the lack of traction to me is actually funny and amusing...then get a seperate set of wheels/tires for the drag strip.
You just need some warmer pavement, it'll get stickier. It's still really early in the season.
I'd have gotten 15K out of my NT555r's, but I've done a few too many ridiculous burnouts on them, so I didn't quite make it there. I think I might just put regular street tires back on it because the lack of traction to me is actually funny and amusing...then get a seperate set of wheels/tires for the drag strip.
It was almost 60 today but a lot sunnier. I finally got the courage to bang through the gears and it stayed on the road lol. I started getting some decent traction about halfway through second. When it was 52 and cloudy 2nd was not useable for the most part.
