Well guys, went to NYIRP yesterday. Pretty disappointing. I made 3 runs, the best being a 13.55 @ 106. My 60' times are terrible. I'm having traction problems with my street tires. Lokks like I need to step up to some drag radials soon. After the 3rd run the rocker arm on the #2 cylinder worked itself loose. So i tightened it up and drove home. On the way home I started to hear it clacking again. I don't know what the problem is. I've had nothing but problems with these rockers since I put them on. I have to pull the cover again and see what is wrong with it. I thought my MPH would have been higher, but maybe I was loosing power because of that rocker. Oh well, time to get to work on it.

Andy

 

Your right andy, your MPH should be maybe 109-110. How was the weather? Any idea what your car weighs?

What rockers do you have?
What were your 60's? Bad 60's will kill both your MPH and ET.

 

My car is pretty light, about 3460 with me in it. My 60' times were 2.2's I used to be able to do 2.02-2.05, but I've added a good bit of power and I haven't been to the track in almost two years. I have self-aligning Comp Pro-mags. I don't know why they keep loosening up. I will be pulling the valve cover tomorrow afternoon to see if anything is damaged.

Andy

 

Hey Andy I sent you a PM

Vince

 

Andy,

Head out there again tonight. 106 is comonplace for guys with shorties and a cam in a LT1 at NYIRP. The dam track never bites.

Bret

 

I'm going to go check under the covers right now. Maybe I'll be there tonight.

SStroker, are you going to be there?

 

Not really.....106 is way low. Definatly problems there, especially if he was making 340rw. I went 110mph (310rw) there with just boltons when I was 80 degrees, Craig went 112mph with his HOT cam (stock heads) there, and quite a few other guys I know are well over 110mph with cams only. If anything, I am pretty impressed with how well the mph is at NYI.

Jason

 

I took my car to NYI after I bought it and ran 13.90 @102 with just a flowmaster. It was also a warm humid night. So I would say that you should have run quite a bit better that you did.

 

I went back tonight and my best was 13.207 @107.8 w/ 2.19 60'. I need to get my 60' down to like 2.03 like I used to run. I'm way out of practice 'cause I haven't been to the track in like 2 years.

Andy

 

Sounds like my turd. I'm only putting a length or so on a 107mph LS1 car, and I'm running a ~306 cam .

Good luck,
Ryan

 

It seems like 110-112 is on the high side here. 106-108 seems to be average, I don't know if I would say that Andy's car is running like **** when it runs a 13.2 @ almost 108. Every car is different, and the best time on a car doesn't happen all the time. Maybe he needs to tweak it a little more. From what I have seen at that track this year the 20+ times I have been there that a LT1 with a cam and bolt ons runs where he is talking about. Most of the time it's humid and the track is not super preped.

There are guys up there with full heads/cam LS1's that are running 109, now there is something wrong there. If the guy was running 115 and low 12's then that's about avergage for a LS1. There are also LS1 guys with a heads/cam setup running 12.1's @ 114. That's low compared to the national level stuff we see at LS1tech.com, everytrack is different. The Pro Stock guys don't always run 6.670 @ 207.18 every time they are out. Only at a really awesome track like Englishtown on a cold day. Look at the 346 NA LS1 list, 11.626 @ 113.360 and a 11.648 @ 119.690. That's mid pack and the best runs those guys have done, but they are completely different MPH.

Someone like Nineball is not going to run a 10.674 @ 128.360 in his monster NA LS1 up here, but it's going to be better than the guys that are normally there.

If Andy did a personal best in his car, I'm not so inclined to tell him something is wrong there. Even if Jay or I jumped in his car I don't think we are going to be that much better, if not slower than him.

BTW with my clutch going south I couldn't even get into the 12's last night with 1.9 short times and low 108mph trap speeds. That's .2 and 1.5mph off what my best is. A week before the car ran 12.9's repeatedly with about the same conditions an consistant 2.0 60 ft's

Bret

 

fwiw, my car ran 107.5 before the cam (boltons) and 108.5 on the first couple of shakedown passes - raceweight is right around 5000-5500.

I don't think Jason is too far off from what I've seen down here in Houston. I wish my car was in the same category as what you've seen, Brett. Then it wouldn't be so dissappointing .

Ryan

 

From what I have seen Houston and NY are two different games.

107.5 for a non cam LT1 would be good. 1mph gain the first time out is about right you have to get used to the new car and the new setup. Some people have really fast learning curves at the track and some don't. Sometimes you get the setup right in a night and sometimes in a few weeks.

Bret

 

I always found NYI to be well prepped myself. I have only been to three other tracks but NYI and Cayuga were deff. the best of the four. Two tracks here, Muncie and Indy I would spin. NYI I grabbed good, both in the Z and the truck.

 

Every car and driver is different. However, owning an almost identical car to Andy's, I know that something doesnt add up. Our cars are the same weight, same tranny, same gearing (as I used to have), same roof type, etc...

I dont care what anyone says, NYI (for the elevation....around 1000') mph's very well. In fact, if my car ran the number it did at NYI and I then took it to a sea-level track somewhere when it was cold, it would appear to me that it would be almost OVER-performing....as backwards as that sounds.

There is no way that something is not right when his car is trapping 107 and making 340rw. Either the dyno number is a poor indication of the power, or there is a problem with the valvetrain as he mentioned earlier. Again, I was going 110mph in the same car, warmer weather, with 310rw, on a 1.9 60ft.

Also, a friend of mine had an XE cam in his car, long tubes, and some bolt ons.....same car as Andy. He made 350rw, runs at the same elevation as us, same temp. He went 114mph. 340 should easily get Andy 112-113mph, or it is an inaccurate number. We dont race dynos, but that is a pretty large discrepency.

IMO, the reason why the NYI people with cam LT1 cars run slow is because they have ghetto tuning....at least every one I have seen/talked to. I have been racing at NYI for 7 years with 4th gen LT1 cars.

Jason