Pro Stock John

iTrader: (34)

6.3's on a 1.48 could be a 9.9 in the 1/4... On a 1.38 you'd go maybe 9.6's I'm thinking.

I've gone 5.9/116 with 680rwhp coming off the transbrake cutting a 1.35 on 325 dr's.

tektrans

iTrader: (23)

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.

WizeAss

iTrader: (5)

I agree.... I was not able to get the car to hook on the 325's with the brake with motor. It works good on a footbrake though. Usually 60's in the 1.60-1.65 range very consistant. I was thinking front shocks would make a difference since I have stockers in front and QA1's in the rear. Probably not though.

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.

FASTFATBOY

iTrader: (23)

It aint gonna run a 5.90. Forget that.

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.

daniel6718

iTrader: (36)

not bad n20 times...cant believe you toasted that badass 3 speed...

how come people blow up their stocker put in a 3 speed and blow them up just as much?

ndfrsd6

iTrader: (5)

(I was thinking front shocks would make a difference since I have stockers in front and QA1's in the rear. Probably not though.)

how could you not think they would help .... you need to transfer that weight to the rear

WizeAss

iTrader: (5)

transmission was not burned up or toasted. it was a fuel problem.

WizeAss

iTrader: (5)

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.

ndfrsd6

iTrader: (5)

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

Pro Stock John

iTrader: (34)

OP definitely needs front drag shocks.

I went 5.9 on 28 10.5's on blower, 680rwhp.

Stroked96Bowtie

iTrader: (22)

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.

fastGBcamaro

iTrader: (10)

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.

WizeAss

iTrader: (5)

my car runs 7.1's at 97mph in the heat NA.... not the best but I think it will likely go 7.00's or even a 6.9x with track temps not in the 120's.... it was 93 degrees air temp and 120 at the track. Really holds ya back. Texas aint for racin between June-August!

I have the dyno graph from last week. Keep in mind the car only made 1 nitrous pass.

also here is a video of the one and only pass with the same horsepower:

<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

WizeAss

iTrader: (5)

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.

WizeAss

iTrader: (5)

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.

Pro Stock John

iTrader: (34)

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.

WizeAss

iTrader: (5)

I figured to run a 5.99 it would take a 111-113 mph with a 1.37 60ft and around 730-760rwhp. Should be possible... but what do I know?

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.

N2RACINGLS1's

iTrader: (2)

Not trying to defend either car or knock either car but you have a higher MPH NA in the 1/8 mile because you have a car that weighs 190 lbs. lighter.

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

Pro Stock John

iTrader: (34)

5.99 @ 3650 raceweight I think would be 300 shot on top of an 11.2 car but I could be wrong. 750rwhp would get it there as long as you went a 1.3x short time.

WizeAss

iTrader: (5)

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.