den_hart

Hello HCI. I don't think I'd ever do a wide open take off on the streets. I've only messed around with a couple of people when being taunted but only took it up to about 80mph quickly then backed off lol. And ddnspider, I believe the tuner said that the fuel injectors were hitting 80% to 85%. I asked about needing bigger injectors because they are stock and he said that they are fine.

ddnspider

iTrader: (26)

If they really are stock injectors, then the power does seem low to only be at 80-85% duty cycle.

HCI2000SS

iTrader: (2)

Where is the timing and AFR at?

98znasty

So you never race it basically? Why do you need 400hp?
or even 300? The dyno could be wrong the tune may be off. if you want to know what it's making you gotta hit the track and get trap speed. You don't even know what it trapped before your mods so it's really a guessing game . Go to the track its awesome you'll be addicted.

sxc Z28

I had a feeling you were in Indy, that's why I asked, no one just goes and gets a Hubbard Racing trans cooler. I put down 348/361 on that same exact dyno with bolt ons and a stall. There is something else going on here.

den_hart

Hello ddnspider. Yes the fuel injectors are stock 28.8#'s HCI, I don't know where the timing and AFR are set at. I messaged the guy who tuned my car if he could email me the specifics on my tune. And 98znasty, no I never track the car. I may mess around on the street once in a while but nothing hard. I've went up against a couple of people that were taunting me and I just punched it to about 80 or so a few times leaving them behind. I don't need 400RWHP, I didn't even use the factory HP that the car had. It's just a number that I want to hit for no reason really. As I said before, the tuner did say that his dyno has been reading low lately but he didn't say how low. I did ask him that earlier in a message to him. Also as I said before, I'm not brave enough to track the car. It's my daily driver all year long and if I break it or me, I'm screwed. And if I do something worse than breaking it or me them I'm really fubared!!

Darth_V8r

iTrader: (4)

Those dynos don't look "bad" but they do look "off".

Your peak tq on that cam should be around 4800 rpm, and it's way lower. And your peak power should be at 6300, and one of your curves hasn't hit peak at 6700 when the pull stopped. I'm wondering if something is fighting something else either in the intake or exhaust.

ddnspider

iTrader: (26)

Shoot if you're in Indy, Mike Norris is the first guy I'd call.

den_hart

Hello sxc, yes I'm from Indy on the south side. The trans cooler was part of the package put together for my car. What do you mean there is something else going on here? Darth I'm not sure what's going on with the car. I honestly don't know very much about this stuff and I am learning. As far as the exhaust goes, I mentioned possibly getting a different cat back than what is on the car currently and I was told that I MAY see a 10RWHP gain.

den_hart

ddnspider, that is where the dyno sheet came from that I posted!

sxc Z28

What I mean is there is likely something wrong with the install or something because that dyno isn't the problem. Its a Dynojet BTW. Did Mike do the cam install and everything or did you let someone else do the install and just have Mike dyno/tune it?

den_hart

sxc Hubbard Racing installed all of my upgrade parts back in December of last year with the exception of the LS6 intake, LS7 lifters, 243 heads and high pressure power steering line which was installed about a month ago. I was thinking Mike uses a Dyno Jet.

tech@WS6store

iTrader: (2)

If the cam was installed advanced or the pushrods too short that could cause what you see. But still could be more wrong.

That should be well over 400 though.

tech@WS6store

iTrader: (2)

That dyno graph is VERY odd too esp how it linearly tanks.

den_hart

tech hello....I bought a set of 7.425" Manley pushrods from Speed Engineering but the guy who did the install of the LS6 intake and 243 heads said that my 7.400" pushrods that were already installed with the BTR Stage 2 cam kit said that they matched up perfectly. I don't know much about these things and this is why I've posted here. I supposedly should have been at 369 before the LS6 intake, LS7 lifters and the 243 heads were installed. I figured I'd gain about 15RWHP conservatively after that so I told Mike Norris that I'm probably at about 380 to the wheels right now. I figured low and then figured after he found out what I had and then retuned my car, I'd be over 400RWHP!

Darth_V8r

iTrader: (4)

Exactly what I'm seeing. I thought that one pull was an error. But the rpm peaks are off. It's mike Norris, so I'm sure the dyno is close enough. My first thought was the Y, but SE Y pipe isn't like the old pace setter Y. It's off road, so not plugged cats. But something isn't right.

If it did what it should, that torque peak would be closer to 370 at 4800, then riding that curve back down you'd catch 410 at about 6500 and that'd be about right for your mods

den_hart

Hello Darth. Yeah I do not have cats on my car.

tech@WS6store

iTrader: (2)

Just because 7.400s fit nearly everything thats exactly what an installer would say really. 90% dont measure preload.

den_hart

Tech...he said that he measured each one. He was the one that suggested that a buy a set of 7.425" pushrods in the first place just in case. Now as to whether he really did or not, only he would know that. Just like any other place you take it to. He said the 7.400" worked perfectly and I didn't need the ones that I bought (that I should sell now).

sxc Z28

This is a head scratcher for sure lol. The problem was before the 243 heads and ls6 intake install because he only put down 330 with a cam, exhaust, and list in the OP which is way off where it should be.