I just came to say this thread is awesome and keep up the good work!
On the 'mildly' Cheap SS Monte Carlo chasing a 9.0___
- Thread starter 64nailhead
- Start date
Thanks.
It’s picture time in the thread, but it will be a slow build through the winter - 4 months until April lol.
Well you knew that a month ago. Once you hit 135 mph it doesn't matter what the ET is. You need a license, chassis cert and all the safety gear.
Yeah, getting something to soften the 1st gear let out is one of my goals this winter. The stick blower combo is fun but like you say it's mean on parts. It's easy to get disillusioned.
So if DW happens in 21 are you shooting to go? Did you have a reservation for 20 that rolls into 21? I haven't seen any updates whether they are just moving 20's plan into 21 or doing something new?
I hope it just rolls 20's tracks forward and if it makes it to Byron dragway I'll plan to drive down.
It seems that it's pretty loose depending on the track - Island looks over EVERYTHING, Cicero was concerned about by my jacket and valve stems, Lebanon Valley cared about the Helmut only, and I was waved through at Atco until that run. But I agree with you and I know the car needs to be safer - retained axles, brakes and seat belt for starters. Thanks for the comment 🙂
Back in the day of your car being new, nothing hit as hard as your car does now and was also considered 'streetable' with the HP it's making. Street driven and 140-150mph 1/4's was unheard of when I was a kid. Thank you boost and track prep lol!
Regarding DW, I was in the top 20 or 25 on the waitlist. They've never turned anyone away, but next year will be the test, if they run it. But if they do have it, then I'm going as long as it's on this side of the Mississippi (or not much west of it).
Yea sweet dreams.... not breaking your mutts How u going to get there..
145 mph in 1/4 mile is in the mid low 9s.
share your recipe thoughts...
Yeah NHRA added the 135 stipulation to accommodate NHRA Super Street class. Used to only be 9.99. But when the 10.90 guys were running 10.90's at 140 mph on the throttle stop, speed became a criteria for a license. My friend was one of them. He had gone as far as going 8.60's off the throttle stop and 10.90's at 150 on it.
Subscribed. Don't know how I missed this thread. Love the build. Looks fun! Was a fun read today.
This was the launch from the fastest the car has gone which was last weekend. You can see how long it took me to get the boost up after launching. It left the line somewhere between 4.5-.4.8 psi and that 's all I could get no matter of spark, AFR or anything.
So I decided to dig in today. Is the issue my hot side (world's worst lol), a leak on the intake or exhaust, or something else? As it turns out it was something else. I've been running a 4psi spring in my chinesium VS 44mm gate ad making 22 psi or so on spring. To explain that some, a 4lb spring should level out around 4lbs of boost give or take a couple of pounds. But because I was making 20+ I assumed it was the poor flow because of my crappy design. But as it turns out I've been making 20lbs and struggling to get to 5 lbs on the launch due to both the crappy design, too light of a WG spring, and my stubbornness with Mac valve plumbing. With some changes to WG spring (put in 16lbs of spring) and Mac valve plumbing, here are the results in a driveway (no full launch):
It's not visible in the screenshot, but when I let go of the transbrake button I was at 8.9lbs and it went to 13+ in less than 7/10ths of a second. I let out a '****in' yikes' and had a smile from ear to ear - hehe.
My wastegate change was to use the Mac valve to bleed the air off from the bottom of the WG diaphragm rather than trying to add manifold pressure to the top of the diaphragm. The issue will be that it will make too much boost. The solution is one of two things - less spring or to use CO2 on the top of the gate with my current Mac valve. Both require some time playing (which is fun) and testing a couple of different systems that are cheap.
In the real world at the strip this means that I should be able to easily see a low 1.5 or better 60', and an easy 30lbs at the big end as long as I can keep from spinning during the 1st to 2nd and 2nd to 3rd shifts.
BTW - ordered 35 spline spool setup from Quick's today (Black Friday saved me 10% 🙂 🙂 ).
So I decided to dig in today. Is the issue my hot side (world's worst lol), a leak on the intake or exhaust, or something else? As it turns out it was something else. I've been running a 4psi spring in my chinesium VS 44mm gate ad making 22 psi or so on spring. To explain that some, a 4lb spring should level out around 4lbs of boost give or take a couple of pounds. But because I was making 20+ I assumed it was the poor flow because of my crappy design. But as it turns out I've been making 20lbs and struggling to get to 5 lbs on the launch due to both the crappy design, too light of a WG spring, and my stubbornness with Mac valve plumbing. With some changes to WG spring (put in 16lbs of spring) and Mac valve plumbing, here are the results in a driveway (no full launch):
It's not visible in the screenshot, but when I let go of the transbrake button I was at 8.9lbs and it went to 13+ in less than 7/10ths of a second. I let out a '****in' yikes' and had a smile from ear to ear - hehe.
My wastegate change was to use the Mac valve to bleed the air off from the bottom of the WG diaphragm rather than trying to add manifold pressure to the top of the diaphragm. The issue will be that it will make too much boost. The solution is one of two things - less spring or to use CO2 on the top of the gate with my current Mac valve. Both require some time playing (which is fun) and testing a couple of different systems that are cheap.
In the real world at the strip this means that I should be able to easily see a low 1.5 or better 60', and an easy 30lbs at the big end as long as I can keep from spinning during the 1st to 2nd and 2nd to 3rd shifts.
BTW - ordered 35 spline spool setup from Quick's today (Black Friday saved me 10% 🙂 🙂 ).
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