[Bomicino]

Curious if youre still in 3rd? My 275/40r17 is 25.7" i think. Im around 5k in 4th. Wondering if a 28 would help launch rpm and saving a shift.

[wnta1ss]

Doesn't a stock M6 go into 4th gear on the dragstrip? And your car has a higher peak-power rpm than stock, meaning that going taller would be the wrong direction. You should rev that thing in my opinion.

From looking at your time slip, my guess is that you could be getting the M6 bog issue, and also it's possible that the shift points that were used might not be optimal. The 60' and 330' could be the bog thing, which probably contributed to the low mph at mid track. The 117 trap speed also seems low for a 499rwhp car as light as this one.

[Umbriel]

Originally Posted by wnta1ss

Doesn't a stock M6 go into 4th gear on the dragstrip? And your car has a higher peak-power rpm than stock, meaning that going taller would be the wrong direction. You should rev that thing in my opinion.

From looking at your time slip, my guess is that you could be getting the M6 bog issue, and also it's possible that the shift points that were used might not be optimal. The 60' and 330' could be the bog thing, which probably contributed to the low mph at mid track. The 117 trap speed also seems low for a 499rwhp car as light as this one.

Agreed, my A8 car trapped 122-123 with 490 rwhp in 2000+ DA.

[17camaroSS]

I agreed with the statement above. My a8 car trapped 124 mph with 474rwhp.

[Jhunsberger]

Bone stock M6 trapped almost 117, bottom side of 4th thru the lights. Now current Whipple setup going thru the lights top of 4th (5500 ish) @ 132 with 28" tall MT ET Street R bias ply's.

[Bomicino]

Thanks for the input. My time was in 90 degree/ real humid air. Im hoping better air will bring my MPH up. Ill keep working with my current tire. I cant feel the bog that everyone talks about. Ive got a mamo V2 and roto fab on the way, hopefully those help a bit. Also waiting on MSD 2-STEP, which ships out on the 17th. Figure it should help with consistency and get that 60' down.

My dyno graph showed peak hp @ 6200, so i was shifting around 6500.

[wnta1ss]

Originally Posted by Bomicino

Thanks for the input. My time was in 90 degree/ real humid air. Im hoping better air will bring my MPH up. Ill keep working with my current tire. I cant feel the bog that everyone talks about. Ive got a mamo V2 and roto fab on the way, hopefully those help a bit. Also waiting on MSD 2-STEP, which ships out on the 17th. Figure it should help with consistency and get that 60' down.

My dyno graph showed peak hp @ 6200, so i was shifting around 6500.

Took a look at your dyno chart and while there is a small dip around 6250rpm, it comes back up and looks like decent power at almost 6500rpm. Therefore I agree with 6spdhyperblue that a shift point higher than 6500rpm is worth a try.

[Bomicino]

Nice, thanks for the input guys. Ill let it rip past 65 and see what that does. I inquired about getting my jntake ported by Pray, but he's 8 week out. I plan to get back out within the next couple weeks, and will report back. Id take 11.80s @ 120+ as a win.

[wnta1ss]

Originally Posted by Bomicino

Nice, thanks for the input guys. Ill let it rip past 65 and see what that does. I inquired about getting my jntake ported by Pray, but he's 8 week out. I plan to get back out within the next couple weeks, and will report back. Id take 11.80s @ 120+ as a win.

With your cam, I seriously think that an MSD and a 95tb is the way to go. MSD is much better in the upper end, which is where your cam is doing it's thing as well. Complementary in other words. Yes I realize that you're currently in the same boat with employment that a lot of people are, so the price is a concern, maybe just wait until things improve before buying something?

[KingLT1]

Stock intake manifold is killing your cams potential...you need a ported MSD/95 combo.

[Bomicino]

I agree, but 2k for what, 20ish wheel throughout?? Hard pill to swallow. I guess if it carried power for 500 or so more rpm, that would be the bigger benifit. Gotta pay to play, but damn. Cars getting strapped down on august 11th again. Im not expecting too much, just want things to be touched up and the tune be clean as possible.

[s346k]

Originally Posted by Bomicino

I agree, but 2k for what, 20ish wheel throughout?? Hard pill to swallow. I guess if it carried power for 500 or so more rpm, that would be the bigger benifit. Gotta pay to play, but damn. Cars getting strapped down on august 11th again. Im not expecting too much, just want things to be touched up and the tune be clean as possible.

maybe only 20 peak. id guess you'll see 40ish @ 6500+.

speaking of intake manifolds, when is tsp gonna release any info their new LT1 manifold?

[Bomicino]

40 would probably be worth it. If TSP's LS3 manifold is 1k with rails, id hope ours would be under 900. Thatd be the move if it proves worthy and doesnt NEED 600 in porting

[KingLT1]

Originally Posted by Bomicino

40 would probably be worth it. If TSP's LS3 manifold is 1k with rails, id hope ours would be under 900. Thatd be the move if it proves worthy and doesnt NEED 600 in porting

20 if you are only comparing peak... as previously mentioned the big gains are going to be up top past peak where the stock intake is falling off in the area where your cam wants to rev. In order to make a cam car perform you have to rev it higher because the power curve shifts to the right. Your engine is only at peak for a narrow window of time. The MSD will carry peak power much further and the car will be substantially faster because it will continue to pull all the way out to rev limit without falling off. It will also setup the next gear higher in the rpm range which helps a lot.