got back to the track
got back to the track we'll after a long winter and a few changes to the car I finally made it back to the track. I left the tune the same as not to change any more things with my parts swaps. last year the car had a 350 th with a noname 3200 converter and a tc78 turbo. this year I went with a glide with a brake and a ptc 3200 converter and a t4 1.25 s480 turbo.
all in all the car runs about the same but with a better or more controllable launch the converter has about 300 rpm less slip thru the lights. with about a 700 drop between shifts . the old converter was almost no drop at the shift.
the powerglide makes the car a lot better to drive out of the hole and im sure that when turned up it will help.
still running a bone stock 10 bolt axle so I was leaving at zero boost and full boost 10# in about a car length.
last year I ran a best of 10.54 at 130 mph in 60* temps .
today I ran a 10.63 @ 129 in 80* temps and only got one try and they shut me down to 1/8 mile for lack of 6pt harness it still runs 6.80 at 104 in the 1/8th.
so now time for some axle parts a few safety items and turn it up.
current tune is 10# boost 11* timing and 11.4 afr shifting at 5500 rpm.
nice and safe .
all in all the car runs about the same but with a better or more controllable launch the converter has about 300 rpm less slip thru the lights. with about a 700 drop between shifts . the old converter was almost no drop at the shift.
the powerglide makes the car a lot better to drive out of the hole and im sure that when turned up it will help.
still running a bone stock 10 bolt axle so I was leaving at zero boost and full boost 10# in about a car length.
last year I ran a best of 10.54 at 130 mph in 60* temps .
today I ran a 10.63 @ 129 in 80* temps and only got one try and they shut me down to 1/8 mile for lack of 6pt harness it still runs 6.80 at 104 in the 1/8th.
so now time for some axle parts a few safety items and turn it up.
current tune is 10# boost 11* timing and 11.4 afr shifting at 5500 rpm.
nice and safe .
TECH Resident
Joined: Sep 2013
Posts: 993
Likes: 119
From: Mechanicsburg, PA
Very nice given the mild tune and soft launch. That thing's not even breathing hard yet. You may want to start looking at a Competition license, some SFI pieces, roll cage, etc... Hahaha!
thanks.
I was at lapeer.
no power pulls good over 6000 I just wanted to drive it like I did last year to get as close to a comparison as possible. I feel with a hard launch and good run it will run 10.40 how it sits. but I need some axle and safety equip first. and a cooler day will get me a tenth I bet.
going to get it setup and get a couple more pounds boost and shoot for 9.99 in the fall.
I was at lapeer.
no power pulls good over 6000 I just wanted to drive it like I did last year to get as close to a comparison as possible. I feel with a hard launch and good run it will run 10.40 how it sits. but I need some axle and safety equip first. and a cooler day will get me a tenth I bet.
going to get it setup and get a couple more pounds boost and shoot for 9.99 in the fall.
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Remember whatever you pick up in the sixty foot, double that on the big end. If you can get mid to low 1.5s, you'll see 9s no problem. The mph is there for 10.0s now. It's in the leave. It'll do it. Have fun.
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Verdad Gallardo 60' on the 10.63 run was 1.66 the best was a 1.63
I can leave as hard as I want with my t break and launch control I just don't want to break the stock 10 bolt . that is my next up grade then a boost controller and a harder launch.
I have the launch set at 3000 rpm and that gets me no boost but the needle shakes a little so I know im right at the edge of making boost. the turbo comes right alive like that though from zero to 10 # in about a car length.
I can leave as hard as I want with my t break and launch control I just don't want to break the stock 10 bolt . that is my next up grade then a boost controller and a harder launch.
I have the launch set at 3000 rpm and that gets me no boost but the needle shakes a little so I know im right at the edge of making boost. the turbo comes right alive like that though from zero to 10 # in about a car length.
Are you on a two step or jus up on the converter? I would think if you can leave on some boost, you'll definitely pick up. Your car is making some good power. To
Push your Nova to 130 after a 1.6x 60 foot time, it's gotta be pulling pretty well. I be you'd go 9s if you upped your timing to around 15* at 10 psi.
Push your Nova to 130 after a 1.6x 60 foot time, it's gotta be pulling pretty well. I be you'd go 9s if you upped your timing to around 15* at 10 psi.
Just keep sneaking up on it. A 2 step will build boost for you. You going to find an 8.5 ten bolt? Pretty cheap bolt in. Well, relatively cheap anyway.
I've never seen a two for one on the 60 ft improvement. More like one for one. Sometimes a little better. Sometimes a little worse. Just depends.
My early runs with no two step were 1.8 60 ft. I'm now in the low 1.4's looking for 1.3's. I've not changed boost since I upped it to 14-15 psi.
Good work!
Ron
I've never seen a two for one on the 60 ft improvement. More like one for one. Sometimes a little better. Sometimes a little worse. Just depends.
My early runs with no two step were 1.8 60 ft. I'm now in the low 1.4's looking for 1.3's. I've not changed boost since I upped it to 14-15 psi.
Good work!
Ron
the axle is a 8.5 10 bolt 3.23 with a stock posi and axles im not sure how hard to push it being all stock. I want to get good axles in it at liest just for piece of mind.
my launch control is a 2 step and I can set it to leave at any boost I want I just didn't want to kill the axle so I set it for 3000 rpm to get the turbo spooling just no boost yet.
next time i'll be ready and more aggressive with the launch as well as a couple more pounds boost.
ron any new track times this year.
my launch control is a 2 step and I can set it to leave at any boost I want I just didn't want to kill the axle so I set it for 3000 rpm to get the turbo spooling just no boost yet.
next time i'll be ready and more aggressive with the launch as well as a couple more pounds boost.
ron any new track times this year.
Just keep sneaking up on it. A 2 step will build boost for you. You going to find an 8.5 ten bolt? Pretty cheap bolt in. Well, relatively cheap anyway.
I've never seen a two for one on the 60 ft improvement. More like one for one. Sometimes a little better. Sometimes a little worse. Just depends.
My early runs with no two step were 1.8 60 ft. I'm now in the low 1.4's looking for 1.3's. I've not changed boost since I upped it to 14-15 psi.
Good work!
Ron
I've never seen a two for one on the 60 ft improvement. More like one for one. Sometimes a little better. Sometimes a little worse. Just depends.
My early runs with no two step were 1.8 60 ft. I'm now in the low 1.4's looking for 1.3's. I've not changed boost since I upped it to 14-15 psi.
Good work!
Ron
TECH Resident
Joined: Sep 2013
Posts: 993
Likes: 119
From: Mechanicsburg, PA
That's interesting. I've seen it quite a few times, but these were all n/a or nitrous setups. Maybe n/a the car is just making that much more power to sixty better that it has a greater affect on the overall e.t. where in this situation the same overall power is made but being put down sooner.
Can't wait to go FI.
Looking forward to more improvements as you work way through the set up!
I've made thousands of runs over the years and can say that my best 60 ft seldom matches my best ET.
So while it sounds good in principal, it doesn't always work that way.
However, getting our cars to 60 ft better is always very worthwhile!
No new numbers for me this year. My new PTC allowed my best 60 ft ever (1.43) but the ET and mph fell off I think because it was just too tight down track. I lost several mph and the finish line rpm dropped over 700.
So I sent it in to be changed and that took 5+ weeks.
It's back ready to go but with temps near 100, neither myself or the car like to go racing. :-)
Soon I hope!
BTW, your stock axles won't break. They are the same as 12 bolt. But it would be good to go aftermarket with C-clip kits to eliminate worry and be legal.
My buds Chevelle has had the stock 8.5 forever, BB on spray, now a high 9 sec turbo car.
Ron
So while it sounds good in principal, it doesn't always work that way.
However, getting our cars to 60 ft better is always very worthwhile!
No new numbers for me this year. My new PTC allowed my best 60 ft ever (1.43) but the ET and mph fell off I think because it was just too tight down track. I lost several mph and the finish line rpm dropped over 700.
So I sent it in to be changed and that took 5+ weeks.
It's back ready to go but with temps near 100, neither myself or the car like to go racing. :-)
Soon I hope!
BTW, your stock axles won't break. They are the same as 12 bolt. But it would be good to go aftermarket with C-clip kits to eliminate worry and be legal.
My buds Chevelle has had the stock 8.5 forever, BB on spray, now a high 9 sec turbo car.
Ron
that turbo will serve you well. at my current level 10# im not seeing any difference. I had to add a little fuel so im sure my backpressure is a little lower but not much change. now once I turn it up and rev it a little more im sure this borg will work good.
8.5 rears there are many Grand Nationals in the 9's and some in the 8's on the 8.5 rears. not very light weight cars either .if you are trans braking i would do the axles with c clip eliminators..i trans braked mine to death with only moser axles but it is good to be on the safe side with c clip eliminators. my GN will 60 in the 1.30 range..the worst the 60 the worst the whole time is. it drives me nuts when the car will not 60ft right because i know the times will be slow .knocking off the 60ft time always doubles up at the end for me with the GN..