My WS6 w/ L92 heads, 408ci, TH400, Vig 3600, 3650lbs, 325 drag radial | NA Times
#41
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I doubt he's gonna be coming off the brake with a nitrous set up and a tight converter on the 325's. Especially how heavy he is and little weight transfer a heavy car gets.
I couldn't get my old 408 to leave off the brake on the 325's N/A (no 2 step though)
I'd like too see that car cut a 1.38 at that weight, on those tires with his current set up.
I'd raise an eyebrow for sure.
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Yeah but that was with your turbo car no?
I doubt he's gonna be coming off the brake with a nitrous set up and a tight converter on the 325's. Especially how heavy he is and little weight transfer a heavy car gets.
I couldn't get my old 408 to leave off the brake on the 325's N/A (no 2 step though)
I'd like too see that car cut a 1.38 at that weight, on those tires with his current set up.
I'd raise an eyebrow for sure.![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
I doubt he's gonna be coming off the brake with a nitrous set up and a tight converter on the 325's. Especially how heavy he is and little weight transfer a heavy car gets.
I couldn't get my old 408 to leave off the brake on the 325's N/A (no 2 step though)
I'd like too see that car cut a 1.38 at that weight, on those tires with his current set up.
I'd raise an eyebrow for sure.
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
A 1.38 60ft with a 111 mph that I should get from going 630-650rwhp to my 710-740rwhp setup should put me in the 5.90-6.10 range in the 8th for sure. Last time I made low 600's horsepower the car was on a 150 pill....
It took 11 degrees of timing (normally runs 15 degrees) and a cold bottle to make that low of power. This was intentional as there was a fuel pump issue the last trip to the track.
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Last night the car went a 7.17 @ 96.9 mph with a 1.61 60ft off a footbrake.
It also did a new best on the hose with 650rwhp. Lets just say that the 8th mile time would put it in the 9's in the quarter. I plan to run the car in the fall with 82 degree temps and 750rwhp. Should put me in the 5.90's or so?.........
It also did a new best on the hose with 650rwhp. Lets just say that the 8th mile time would put it in the 9's in the quarter. I plan to run the car in the fall with 82 degree temps and 750rwhp. Should put me in the 5.90's or so?.........
6.40 is around a 9.99.
5.90 is a 9.25
(ish)
My 10.58 was a 6.70 1/8 mile.
Does the car spin or wheelhop off the transbrake? Double adjustable rear shocks would do wonders.
Multiply your 1/8 mile ET by 1.57 to get 1/4 mile et.
ex 6.31X1.57=9.90
Going from a 9.90 to a 9.20 is a whole different animal than going from a 11.0 to 9.90.
Good luck though.
Last edited by FASTFATBOY; 07-12-2009 at 01:24 PM.
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I should have said "cure". I dont think that will allow me to hit the car with a T-brake with a 325........ I wonder how folks get cars to setup to go. I do not have the knowledge to setup a car to hook on a drag radial and I don't see the 275 guys hooking every pass.... too darn finicky.
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its all in the suspension ....yes you need front shocks to transfer the weight ... , a lot of T&T .....there are guys hooking on the 275's and plenty of guys going on 325's
its all in the suspension ....yes you need front shocks to transfer the weight ... , a lot of T&T .....there are guys hooking on the 275's and plenty of guys going on 325's
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Stick a progressive controller on your nitrous Wise...really helps out on these DRs. Im able to dead hook on a 275 with times similar to yours but better 60s on a progressive box. See ya at the track.
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I have a setup, very similar to the OP. 413 cid LS2, t400, 3.73, 3600 Yank stall, ported L92's and 3460 lb raceweight. I am running a stock L76 intake and my car goes 6.9's in the 1/8th @100 and 10.8 @ 126 in the 1/4. My car went a best of 10.5 @125 with the old 4000 Yank, but I put in a tighter converter with intentions of spraying the car just like the OP. I am also running stock front and rear shocks. To me it sounds like somthing isn't right with your combo. My 60' times are also only 1.58- 1.60 with the new nitrous converter. With the old converter it would go 1.39 60' times.
Our setups are nearly identical, with nearly identical 60' times, but I am trapping 6mph more than you in the 1/8th. I am guessing there is somthing in your setup that is holding you back. Maybe the single plane intake?
Either way, it looks like your car is responding well to N20. But I agree with everyone else when they say, dial in your NA setup and it will only help your N20 times.
Our setups are nearly identical, with nearly identical 60' times, but I am trapping 6mph more than you in the 1/8th. I am guessing there is somthing in your setup that is holding you back. Maybe the single plane intake?
Either way, it looks like your car is responding well to N20. But I agree with everyone else when they say, dial in your NA setup and it will only help your N20 times.
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I have a setup, very similar to the OP. 413 cid LS2, t400, 3.73, 3600 Yank stall, ported L92's and 3460 lb raceweight. I am running a stock L76 intake and my car goes 6.9's in the 1/8th @100 and 10.8 @ 126 in the 1/4. My car went a best of 10.5 @125 with the old 4000 Yank, but I put in a tighter converter with intentions of spraying the car just like the OP. I am also running stock front and rear shocks. To me it sounds like somthing isn't right with your combo. My 60' times are also only 1.58- 1.60 with the new nitrous converter. With the old converter it would go 1.39 60' times.
Our setups are nearly identical, with nearly identical 60' times, but I am trapping 6mph more than you in the 1/8th. I am guessing there is somthing in your setup that is holding you back. Maybe the single plane intake?
Either way, it looks like your car is responding well to N20. But I agree with everyone else when they say, dial in your NA setup and it will only help your N20 times.
Our setups are nearly identical, with nearly identical 60' times, but I am trapping 6mph more than you in the 1/8th. I am guessing there is somthing in your setup that is holding you back. Maybe the single plane intake?
Either way, it looks like your car is responding well to N20. But I agree with everyone else when they say, dial in your NA setup and it will only help your N20 times.
I have the dyno graph from last week. Keep in mind the car only made 1 nitrous pass.
![](http://i24.photobucket.com/albums/c15/forteen3gt/MikeysTransAm408dyno11degreestiming.jpg)
also here is a video of the one and only pass with the same horsepower:
![](http://i24.photobucket.com/albums/c15/forteen3gt/th_MVI_1529.jpg)
<embed width="448" height="361" type="application/x-shockwave-flash" wmode="transparent" src="http://i24.photobucket.com/player.swf?file=http://vid24.photobucket.com/albums/c15/forteen3gt/MVI_1529.flv">
http://s24.photobucket.com/albums/c1...t=MVI_1529.flv
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as you can see this is not leaning on it whatesoever. It made 710 before with these same pills more timing and alot more bottle pressure.
![](http://i24.photobucket.com/albums/c15/forteen3gt/StrackCarPicsandVids18-1.jpg)
Last edited by WizeAss; 07-13-2009 at 08:41 PM.
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https://ls1tech.com/forums/nitrous-o...-275-race.html
its all in the suspension ....yes you need front shocks to transfer the weight ... , a lot of T&T .....there are guys hooking on the 275's and plenty of guys going on 325's
its all in the suspension ....yes you need front shocks to transfer the weight ... , a lot of T&T .....there are guys hooking on the 275's and plenty of guys going on 325's
no comparison....
I drive my drag radials on the street which doesnt really make them a drag radial due to change in heat cycling etc.... as explained to me by someone that knows how DR's work and hook on a 275 wide True Street car.
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OP, do you want our input are you all set. 5.9x's in the 1/8 is going to be a bit of work. If you are making 700rwhp you can run mid 9's and get close, just have to work your time down from a 6.3 to a 5.9. My old 2000 Z/28 went 10.008 on a 150 shot on top of stock cubes (10.9@122.5mph NA), and to run 5.9's it would need probably need a 225 shot in my case.
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OP, do you want our input are you all set. 5.9x's in the 1/8 is going to be a bit of work. If you are making 700rwhp you can run mid 9's and get close, just have to work your time down from a 6.3 to a 5.9. My old 2000 Z/28 went 10.008 on a 150 shot on top of stock cubes (10.9@122.5mph NA), and to run 5.9's it would need probably need a 225 shot in my case.
I appreciate the input. I also want to share my results for folks to use as a means of measurement although they are not ideal conditions or optimized.
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I will say the both of you are making me feel real good about the way my car is performing being only a 346 CI engine and on 26 inch tires to boot! My car is always at the 100 MPH mark in the 1/8 NA.
Anyway I hope you get it figured out WizeAss! Sometimes it just takes time. For what it is worth I would have put the front shocks on first before I ever even changed out the back shocks. I have been many 1.4 sixty foot times with the stock shocks on the back.
Good Luck!
N2
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Thanks John... that is what the shop and most others have figured. I have a feeling the car will get close to 98-99mph NA with the right temps. Doing 111mph sure does put it close.... we will see in cooler weather.