Moparts

9 second pass? How fast?

Posted By: moparmc

9 second pass? How fast? - 10/04/21 04:53 PM

I have been out in the Mopar wilderness for a while but finally managed to finish building my car. Took me a few years though I will admit.
Hopefully it performs well, but I guess you never know until you get it to the strip. It's a low deck stroker with a glide and weighs 3000lbs.

Specs are:
Factory 400 block (no aftermarket here in Australia at the time)
Aluminium caps, studs, hardblock and a girdle
4.3 Ohio crank
6.7 rod
Off the shelf flat top 13:1 compression
Milodon dual line oiling and Milodon gear drive
Isky rr665 ( 282 intake and 286 exhaust on 110 with .750 lift with 1.7 Jesel)
Indy 345 CNC with 2.25 intake valve
Ported Indy intake
Ron's Terminator alcohol
Star vacuum pump
2 1/8 into 4"

Powerglide with 1.80 straight cut gears
5250 stall
4.3 gears sheet metal 9' housing
Coil over front
Caltracs rear

Assuming the block stays put, any guesses on how fast this thing will be over the quarter?

Attached picture IMG20210911162912.jpg
Attached picture IMG20210911162929.jpg
Posted By: B3422W5

Re: 9 second pass? How fast? - 10/04/21 05:16 PM

9. 20’s to 9.40’s
Posted By: moparmc

Re: 9 second pass? How fast? - 10/04/21 05:29 PM

I should have said, it's 517 cu/in and the glide has a trans brake.
Posted By: one bad fish

Re: 9 second pass? How fast? - 10/04/21 05:30 PM

nice ride
Posted By: moparmc

Re: 9 second pass? How fast? - 10/04/21 05:41 PM

Thanks, paint is over 20 years old too.
I wish I aged that well.
Posted By: AndyF

Re: 9 second pass? How fast? - 10/04/21 06:26 PM

500 inch short block with big cam, Indy 345 heads and 13:1 compression should give you around 800 hp on the dyno. So that would be a 4:1 ratio with 3200 lbs on the starting line which puts you in the lower 9's and 145 mph. But of course the devil is in the details. Lots and lots and lots of stuff to sort out on a new car. Launch RPM, convertor, shock settings, spring rates, tire pressure, etc. so don't be surprised if the first passes are in the mid 10's. Could take you a few dozen runs before you get it dialed in, all depends on your experience.
Posted By: rebel

Re: 9 second pass? How fast? - 10/04/21 07:37 PM

if I had your combo in my car, i would be expecting mid 8's. I have a similar combo already, but less cubes 455 & running pumpgas & on good days i'm 8.9, on bad 9.0's.
Posted By: Clanton

Re: 9 second pass? How fast? - 10/04/21 08:25 PM

Originally Posted by moparmc
I have been out in the Mopar wilderness for a while but finally managed to finish building my car. Took me a few years though I will admit.
Hopefully it performs well, but I guess you never know until you get it to the strip. It's a low deck stroker with a glide and weighs 3000lbs.

Specs are:
Factory 400 block (no aftermarket here in Australia at the time)
Aluminium caps, studs, hardblock and a girdle
4.3 Ohio crank
6.7 rod
Off the shelf flat top 13:1 compression
Milodon dual line oiling and Milodon gear drive
Isky rr665 ( 282 intake and 286 exhaust on 110 with .750 lift with 1.7 Jesel)
Indy 345 CNC with 2.25 intake valve
Ported Indy intake
Ron's Terminator alcohol
Star vacuum pump
2 1/8 into 4"

Powerglide with 1.80 straight cut gears
5250 stall
4.3 gears sheet metal 9' housing
Coil over front
Caltracs rear

Assuming the block stays put, any guesses on how fast this thing will be over the quarter?




I see you have your vacuum pump hose placed in the valley pan so do you think it will suck oil in this area or do you have a baffle system in place?Thank you for your info on this.
Posted By: metallicareload

Re: 9 second pass? How fast? - 10/04/21 08:31 PM

Originally Posted by Clanton
Originally Posted by moparmc
I have been out in the Mopar wilderness for a while but finally managed to finish building my car. Took me a few years though I will admit.
Hopefully it performs well, but I guess you never know until you get it to the strip. It's a low deck stroker with a glide and weighs 3000lbs.

Specs are:
Factory 400 block (no aftermarket here in Australia at the time)
Aluminium caps, studs, hardblock and a girdle
4.3 Ohio crank
6.7 rod
Off the shelf flat top 13:1 compression
Milodon dual line oiling and Milodon gear drive
Isky rr665 ( 282 intake and 286 exhaust on 110 with .750 lift with 1.7 Jesel)
Indy 345 CNC with 2.25 intake valve
Ported Indy intake
Ron's Terminator alcohol
Star vacuum pump
2 1/8 into 4"

Powerglide with 1.80 straight cut gears
5250 stall
4.3 gears sheet metal 9' housing
Coil over front
Caltracs rear

Assuming the block stays put, any guesses on how fast this thing will be over the quarter?




I see you have your vacuum pump hose placed in the valley pan so do you think it will suck oil in this area or do you have a baffle system in place?Thank you for your info on this.


Looks like it snakes over to valve cover in middle. It would be interesting to see what kind of baffles you guys with vacuum pumps are running?
Posted By: jim sciortino

Re: 9 second pass? How fast? - 10/04/21 11:28 PM

Bottom 9s. The converter may be a little tight, but since you already have it, may as well let it rip.
Posted By: AndyF

Re: 9 second pass? How fast? - 10/05/21 01:40 AM

Originally Posted by jim sciortino
Bottom 9s. The converter may be a little tight, but since you already have it, may as well let it rip.


I'd suggest that we don't know what the stall speed on the converter actually is since the combination hasn't run and since the OP doesn't know how much power the engine makes. Without a dyno sheet the converter builder was just guessing at the stall speed.
Posted By: Cab_Burge

Re: 9 second pass? How fast? - 10/05/21 01:54 AM

Low to mid nines to start with at or above 142MPH, tuning it should make it faster, especially after breaking it in and finding the correct tune up wrench
Please keep us in the loop wrench
Posted By: moparmc

Re: 9 second pass? How fast? - 10/05/21 03:19 AM

9's will be a welcome change from the diesel 4x4 I drive around in. But will take some getting used to.

It will be 3030lb on the line, came in at just under 2800lb without my 235 in the seat.

Probably right on the converter, it is a bit tight, in hindsight I should have made it closer to 6000. Never had a 2 speed before, it will be a learning curve. It did have a 727 - billet drum, A&A t/brake, 5 pinon steel planet roller bearings etc etc plus a Frank Lupo converter but had to let it go to fund kid's sporting endeavors, hard to find another on over here so powerglide was the only option.

Vacuum pump pick up was originally in the top of the cover but pulled way too much oil, so I searched the forum and found that a good spot for it is in the valley side of the valve cover. This location work's great even with spray bar oiling. The only baffle is by way of the Star supplied fitting as in the picture.

Might be a few more weeks before I hit the track. I'll keep you guys posted when I do.

Attached picture STAR VACUUM PUMP BAFFLE 001.jpg
Posted By: BloFish

Re: 9 second pass? How fast? - 10/05/21 04:06 AM

Mid 9’s for sure.
Posted By: HardcoreB

Re: 9 second pass? How fast? - 10/05/21 11:20 AM

Nice car!!! It should run real well. I'm sure all of 800HP. Well you asked how fast so, 148-150 the ET may take you a while to use all the MPH. Should go 9.4 relatively easy.
Posted By: Chargerfan68

Re: 9 second pass? How fast? - 10/05/21 12:36 PM

Originally Posted by moparmc
9's will be a welcome change from the diesel 4x4 I drive around in. But will take some getting used to.

It will be 3030lb on the line, came in at just under 2800lb without my 235 in the seat.

Probably right on the converter, it is a bit tight, in hindsight I should have made it closer to 6000. Never had a 2 speed before, it will be a learning curve. It did have a 727 - billet drum, A&A t/brake, 5 pinon steel planet roller bearings etc etc plus a Frank Lupo converter but had to let it go to fund kid's sporting endeavors, hard to find another on over here so powerglide was the only option.

Vacuum pump pick up was originally in the top of the cover but pulled way too much oil, so I searched the forum and found that a good spot for it is in the valley side of the valve cover. This location work's great even with spray bar oiling. The only baffle is by way of the Star supplied fitting as in the picture.

Might be a few more weeks before I hit the track. I'll keep you guys posted when I do.


That is the same baffle i ran with the Star pump setup on my low deck stroker. Worked well and i only had about 2 ounces of oil in catch can after 1/2 dozen or so dyno pulls.
Posted By: moparmc

Re: 9 second pass? How fast? - 01/26/22 11:26 AM

I thought I would give you guys a quick update since my last post.

I had hoped to get to the track earlier but had a couple of issues. Firstly, I found some bearing material in the oil filter so to be safe, I pulled the engine. I ended up changing out the rod and main bearing.
Second problem came about when I had the roll cage tech inspected. Long story short, out with the existing moly cage and in with a new one.$$$

Finally got to the track only to have a problem with the shifter cable (stretched I think). But I guess these things are to be expected with a new build.

There is some good news as despite the car only having 2nd gear (1:1) in the powerglide, it still managed to run in the 9.8's. It did that time rolling out the start as no transbrake in 2nd and backing off at the top end, so I'm guessing that there is plenty more left in it. It definitely runs hard.
Posted By: rb446

Re: 9 second pass? How fast? - 01/26/22 11:54 AM

cool, just doing a few calcs and judging by the pic you have 28" slicks?.....@800fwhp and 3030@the line on a good day sorted the ticket could look like>

Power to Weight Ratio: 0.26 : 1 (HP per 1 Pound Weight)
60 Foot E.T. : 1.26 Seconds
1/8 Mile E.T. : 5.73 Seconds
1/8 Mile Trap Speed : 118.64 MPH
1/4 Mile E.T. : 9.08 Seconds
1/4 Mile Trap Speed : 148 MPH
1/4 Mile Trap RPM : 7,621 RPM+slip eek
a 29" slick would be 7358+
up
Posted By: Ian

Re: 9 second pass? How fast? - 02/01/22 02:30 AM

I would think mid 9, how did it go the other week i think i seen a pic at perth track? i think it would be more like 3500 race weight .
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