[JANNETTYRACING]

Originally Posted by PRAY

Yes you do. The guy I was speaking with is probably the king of VVT cams. He has deleted the AFM lifters but is still running a VVT cam as far as I can tell. Actually, with this car, they are all VVT. It is just if you chose to use it or not I guess. I was pretty surprised when he said he was buzzing it to 7,500 with no issues. I usually even limit my LS7 cars to 7,200 even though they make power to 7,400.

What is current race weight full tank you in the driver seat?

[PRAY]

Originally Posted by JANNETTYRACING

What is current race weight full tank you in the driver seat?

My current race weight going down the track is 3,840. I dont believe in weight reduction in my personal car. I have been as fast as 99.7 in the 1/8 and I would say 126 or better in the 1/4. I only have a slip at 125.07 with the 1/8 mile being 98.05 on that run. It was +200 DA that day.

[JANNETTYRACING]

Originally Posted by PRAY

My current race weight going down the track is 3,840. I dont believe in weight reduction in my personal car. I have been as fast as 99.7 in the 1/8 and I would say 126 or better in the 1/4. I only have a slip at 125.07 with the 1/8 mile being 98.05 on that run. It was +200 DA that day.

You are showing 590 Crank HP to go 125 MPH at that weight.

125 MPH shows 10.60 ET when everything is right, converter gearing weight transfer and traction.

So there is a lot left in your chassis right now.

You need 10 more HP to go 126.5 to achieve 10.50 ET

Or you could reduce your weight by 100 lbs.

Hope this helps.

[PRAY]

Originally Posted by JANNETTYRACING

You are showing 590 Crank HP to go 125 MPH at that weight.

125 MPH shows 10.60 ET when everything is right, converter gearing weight transfer and traction.

So there is a lot left in your chassis right now.

You need 10 more HP to go 126.5 to achieve 10.50 ET

Or you could reduce your weight by 100 lbs.

Hope this helps.

So you're saying there's a chance. LOL.

I am hoping these cut outs I am adding will give me the 10rw. Chris at Circle D is building me a 4C right now. I am guessing it will stall at 3,800 on E. I am pretty stuck with my tire choice right now. I may remove my cats as well for a money run. I am going to get everything dialed in and possibly drop the seats and put the wife in the car for a pass. I have about 85 lbs on her at least +the seats. If I could get one more -1000 DA day it would be a done deal. The car is pretty impressive for what it is right now.

If I can get the car to go 10.7 in +200 DA I will be pretty happy. Then I am going to drop my heads on and shoot for 10.50 on the stock cam.

I think for the 10.50 boltons only I will need a dedicated car with the above prescribed build. I don't have the guts to take my daily driver that far.

Thanks for the advice and encouragement. You just made it seem so much closer.

[oldman]

Originally Posted by PRAY

So you're saying there's a chance. LOL.

I have about 85 lbs on her at least +the seats.
.

The oldlady constantly reminds me she put my LS1 into the 12s first (near stock on stock GS-C summer tires) as she is only 95 lbs soaking wet, heck that just ain't fair...

[PRAY]

Originally Posted by oldman

The oldlady constantly reminds me she put my LS1 into the 12s first (near stock on stock GS-C summer tires) as she is only 95 lbs soaking wet, heck that just ain't fair...

It's always good to have a jockey near by. I bet there has never been a race horse ridden by it's owner.

[laynlo15]

That 4k converter is going to hurt your mph speed some. Mine makes 544/559 it just went 10.85 and my highest mph was 129.88 into a 20 mph headwind. Your gonna need over 600 at the wheels and the NA car is just not going to MPH like a blower car. That converter is gonna be pretty loose and should get you into the 1.40 60ft times. Pretty big prediction and not saying you can't do it, but with stock cam and no FI its gonna be tough to make 600 rwhp. Just sayin

[ULTRAZLS1]

An s550 5.0 has been 10.49 @ 129 with all the bolt ons and a big stall running ftw purple race fuel. Probably in the 500 rwhp range. Looking at his weight loss mods it's extensive but not crazy I'm guessing his raceweight is 35-3600.

Without internal mods the 5.0 has an advantage with its independent variable cam timing. They can still make power and extend the rpm range another 1000 rpm. Full control of all 4 cams. A hardcore race tune in a coyote is similar to a mild cam swap in a pushrod motor.

In an all out NA build the lt1 should have the advantage but with just bolt ons the coyote is hard to beat with its ti vct.

[PRAY]

Originally Posted by laynlo15

That 4k converter is going to hurt your mph speed some. Mine makes 544/559 it just went 10.85 and my highest mph was 129.88 into a 20 mph headwind. Your gonna need over 600 at the wheels and the NA car is just not going to MPH like a blower car. That converter is gonna be pretty loose and should get you into the 1.40 60ft times. Pretty big prediction and not saying you can't do it, but with stock cam and no FI its gonna be tough to make 600 rwhp. Just sayin

It's a tall order for sure. But in my experience you need about 75-100rw less hp in a N/A car to run with a F/I car. Yet again, another bold statement. But my experiences and current results out there speak to the truth of it. A N/A car usaully won't match the MPH but the ET will match. With a stick car it is even worse.

In our current situations you have about 100rw on my in the same gear, possibly even a little more. I have done any 5th gear pulls lately. But in +500 DA air I am just a little over .2 tenths behind you and down about 2mph in the 1/8 and 4mph in the 1/4. Your 60ft is around .6 better than mine on average.

Dang, I got to run. I will finish my thoughts when I get home later.

[laynlo15]

I think you'll be further behind this coming weekend when I retune and add the VP MS109 which I expect to pick up 40 rwhp. The weather will be real similar to my last time out and hopefully not have a 20+head wind to deal with like last time. I know you have the ability to make these Camaro's run really fast as you have done. If you achieve your goal I'm gonna consider you the King of NA on this forum. You better get going before the weather eats up your hefty goals. You know I wish you well.

[PRAY]

Originally Posted by laynlo15

I think you'll be further behind this coming weekend when I retune and add the VP MS109 which I expect to pick up 40 rwhp. The weather will be real similar to my last time out and hopefully not have a 20+head wind to deal with like last time. I know you have the ability to make these Camaro's run really fast as you have done. If you achieve your goal I'm gonna consider you the King of NA on this forum. You better get going before the weather eats up your hefty goals. You know I wish you well.

When I get back to a lap top I will finish my above post. I was comparing our cars as they set to get my eventual point that I think will help everyone.

With just some trans TM and shift point tuning you will be way ahead. There is just a bunch left in your tune all the way around to make you go faster.

[PRAY]

Back to what I was saying.

The cars are close due to the 60ft and 1/8 ET. Back half mph won't make up for the front half. In comes the converter. I will have to go back and look at your dyno graphs to see how the cars compare tq wise from 2,500 to 5K. With our 60fts we are around 5K at that mark. My car doesn't really start to come onto power untill 3,600 and rockets up from there. If I can leave at 3,600 I am under power and climbing. No lul for 1K rpm and almost .9 seconds. Also with todays control over the trans and converter you won't lose any mph with the correct lock up speeds applied. If anything you may gain some mph with being able to leave under power with some real tq multiplication.

MPH is only a concern since I need a minimum of it to go 10.50's. Seems to be around 510-525rw. Cars have gone into the 10's at 121mph.

I will post some good F/I vs. HP times and power numbers later. I have to get to grinding right now.

[laynlo15]

Bret very nice to talk to you, I wish I understood and had your knowledge of the tuning aspect of it. I appreciate you taking the time on the phone with some tranny info. I hope you make your goal and that would definitely be impressive.

[PRAY]

Originally Posted by laynlo15

Bret very nice to talk to you, I wish I understood and had your knowledge of the tuning aspect of it. I appreciate you taking the time on the phone with some tranny info. I hope you make your goal and that would definitely be impressive.

Thank you Sir, anything to help another guy reach his goals. Hopefully the little changes we made will show out well for you at the track. I still have to go back and find your dyno graphs to verify my thoughts. Just burried in IM/TB's and heads right now. Along with some builds I have going on. My car is sitting till my converter shows up.