[GTOGEORGE]

Originally Posted by RAIV-Z

I believe it is, I sent a note to Carl last week to confirm leaving in 2nd gear is ok.

Why would you want to leave in second? Your clearly not putting any power to it til the back half of the 1/8.....just wondering.


GTO George

[RAIV-Z]

Originally Posted by JSPONT

I see my question brought up what I was thinking. I did not want to get to personal and ask to see a time slip(hint) . Grinner TB work in 1st and 2nd gear.
It would be interesting to see what happens with a little more power at the launch in 2nd gear. Car looks great! Thanks for keeping us posted.

Times from the 2nd video.
60 1.246
330 3.345
1/8 5.064
MPH 143.08
1000 6.546
ET 7.846
MPH 167.09

[RAIV-Z]

Originally Posted by ponjohn

You guys mean that is a lot of first gear compared to a glide?

That is a very tall tire.

Calculated MPH with different transmission 1st gears @7500rpm:
https://spicerparts.com/calculators/...rpm-calculator

T400 2.48 = 77.51
Rossler 2.10 = 91.54
Powerglide 1.82 = 105.62

[RAIV-Z]

Originally Posted by John Langer

What size rear tire? You use Viking shocks?

33.5x16.5. Yes, I'm using Viking shocks.

[RAIV-Z]

Originally Posted by GTOGEORGE

Why would you want to leave in second? Your clearly not putting any power to it til the back half of the 1/8.....just wondering.


GTO George

To see what effect is has on building boost sooner with the current tune.

[John Langer]

Originally Posted by GTOGEORGE

Why would you want to leave in second? Your clearly not putting any power to it til the back half of the 1/8.....just wondering.


GTO George

So you can put the power to it. It is an acceleration competition, not the salt flats. I would love to not have to pull power out on the hit and leave at a much higher rpm for the first second. I could go much quicker if I could.

[John Langer]

Originally Posted by RAIV-Z

33.5x16.5. Yes, I'm using Viking shocks.

Me, I would go with a different shock.

[RAIV-Z]

Originally Posted by John Langer

Me, I would go with a different shock.

If we hit the limits of what these can do for us, I'm open to options. At this point we haven't made any chassis/suspension adjustments from our original starting point.

Which shock/spring vendor? Santhuff?

[John Langer]

Originally Posted by RAIV-Z

If we hit the limits of what these can do for us, I'm open to options. At this point we haven't made any chassis/suspension adjustments from our original starting point.

Which shock/spring vendor? Santhuff?

Real cars need real shocks that respond to change and have repeatability. I use santhuff. Others have found success with afco/menscer, bell/kinetic, Penske, jr1 to name a few.

[Jeff Kinsler]

Originally Posted by John Langer

Real cars need real shocks that respond to change and have repeatability. I use santhuff. Others have found success with afco/menscer, bell/kinetic, Penske, jr1 to name a few.

No more of a truer statement than that.

[RAIV-Z]

Originally Posted by John Langer

Real cars need real shocks that respond to change and have repeatability. I use santhuff. Others have found success with afco/menscer, bell/kinetic, Penske, jr1 to name a few.

For now we'll work with what we have, if they become the limiting factor they will be changed. I do expect we'll be able to hit consistent 1.1x 60's.

[LiL Jack]

Originally Posted by RAIV-Z

To see what effect is has on building boost sooner with the current tune.

You need to hit it hard out the gate to get it moving.

[RAIV-Z]

Originally Posted by LiL Jack

You need to hit it hard out the gate to get it moving.

What RPM are you launching at? I'm at 4800rpm now, planning on increasing to to ~5500.

[GTOGEORGE]

Originally Posted by RAIV-Z

What RPM are you launching at? I'm at 4800rpm now, planning on increasing to to ~5500.

So what kind of boost you running ......leaving and down the track?

GTO George

[RAIV-Z]

Originally Posted by GTOGEORGE

So what kind of boost you running ......leaving and down the track?

GTO George

~6lb on the launch with a target of 12lb as the last event, target and a target of 20lb going down the track.

[LiL Jack]

Originally Posted by RAIV-Z

What RPM are you launching at? I'm at 4800rpm now, planning on increasing to to ~5500.

3700

A buddy of mine leaves on 12#, but closer to 40# down the track.

[wreckmastr]

Originally Posted by RAIV-Z

What RPM are you launching at? I'm at 4800rpm now, planning on increasing to to ~5500.

Are you pulling any timing on the launch (Launch retard)?

3400 launch at 9lbs here

[RAIV-Z]

Originally Posted by wreckmastr

Are you pulling any timing on the launch (Launch retard)?

3400 launch at 9lbs here

I'm not pulling any timing while on the t-brake in the current tune.

[LiL Jack]

Originally Posted by RAIV-Z

I'm not pulling any timing while on the t-brake in the current tune.

That’s correct you should not be or it won’t go up on the brake. It activates when u let go of the brake. You might want to try lowering the leave RPM, it will hit the converter harder.

Work on the front half and the back half will follow.

[cgeise]

You need to pull timing out on the t-brake - it helps spool faster -- Tell LIL Jack to -- stay in his own lane --