One thing I just noticed, Angela... jeff didn't actually tune your car, did he? It was more or less just a baseline run? If so, there's likely another 15-20rwhp in it.

As far as precision goes, they're not far from me at all, but I haven't ever heard anything about them regarding their dyno services. Either way though, I've had lots of guys go to Creech at CAM and if it says 35Xrw, then that's what it is making, regardless of whatever precision wanted to claim. Precision's #'s had to be very skewed (or uncorrected/not SAE), so IMO don't worry about it at all, just disregard them completely & don't go back. The 12bolt will waste a few hp over the 10bolt, but nothing huge in my experience (unless it isnt setup properly).

If you haven't had it actually tuned, then it would likely be well worth your time to do so. I didn't notice before but you said you have LT4's from those guys. Most of their LT4 stuff I've seen has been in the 27Xcfm range, so you should, IMO, be able to pick it up another 15-20rw with tuning. Either Jeff, or Woodbridge should be able to help you out with that .

Good luck with it

-Phil

 

Phil,

No, Jeff has not tuned the car. The only tuning has been w/ Ed Wright and PCMforless, w/ PCMforless being in there right now.
The last tune I got from Ed was the one running at Precision Dyno, for the hot cam, ect. I would like to take time to get it tuned right there on the dyno, and will set up a time to do that within the coming year.

When I went to Precision, it was a club dyno day, and everyone got expected numbers. And it was $45 for 3 runs. The reason we didn't go back is b/c it is too far, hard to set up a day b/c they are so busy, and mainly b/c everyone knows Jeff, and he has his own shop, so close by. Except me, it is 2 hours

Those heads are nice. They came from John Benton in TX, a guy that was actually mentioned in this post. Very few miles on those, intake, pro mags, pushrods, and springs. I believe they came off a 396. Anyway, I guess I do need to do some real on the spot tuning.

It is just like a raped ape on the street, and unreal power. And I have rode in a lot of fast cars, so I kinda know how to place mine.
It is just hard for me to see.

Anyway, thank you for your advice Everyone has been really helpful. Oh, and the 12 bolt, I don't know how much it affected it.
I had it on at the other dyno as well. As far as Woodbridge, it is at least 3-4 hours from me. I would rather go to Jeff, he is closer,
and I know him.

Thanks, and I will keep you updated

 

Definitely let Jeff go to town on it, you'll likely be very pleased. I know I have been every time he tuned anything of ours .

FWIW, mail order tuning is generally hit or miss. I've had some guys make okay power with it, and other customers receive a mail order file that was literally unuseable (a pcmforless file for Dr. Mudge).

Give it to Jeff, there's hope yet

-Phil

 

I know the deal about mail order tunes. It is always hit or miss, but better than nothing, especially when they will work with you, and alter your file when you need it I have to say that PCMforless and Ed Wright did that for me, and they didn't have to.

Well, I can judge a file very well w/ my Scanmaster. It is very honest with me, and lets me have a good idea of what is going on. I am very concerned w/ the BLMs, Fuel on both sides, O2 readings, and coolant temp (an actual #). And some codes that won't trigger an SES light.

Anyway, I will be working w/ Jeff soon

Thanks Phil

EDIT: Phil, I just went to your site, pretty cool! I checked out your AI section, and you mentioned Eric Buss and his times. Those were my heads you worked I sold those to him a year or so ago, lol Those are some nice numbers those guys are pulling. Now people should see why I am upset.

 

Angela,

Didnt read this whole thing but I would venture to say it is your tranny like the dyno guy suggested. I just toasted my tranny recently after having the CC306 installed. The thing spins so high that our tranny can't handle it. It happened just like you said too. The car ran great, like a bat out of hell. Love the cam. It would peel the tires, jerk hard, and didnt feel like it was slipping and then all of a sudden I take it out one day to go to the track and the tranny was just FRIED. It was so wierd how it happened. Seemed fine the weekend before at the track and then took it to take advantage of the weather and thought it just needed warmed up. 30 min later on the way to the track I just turned around b/c it was not going to make it.

Sounds like yours is doing the same thing mine did. Prepare for a new tranny. I couldn't believe it when mine went either. Well, at least that tells me I should have better times. Mine had a slight pause right before it would shift at around 6,500 or so. I thought it was a high end miss or something but after all that happened, it was the tranny the whole time.

EDIT: My tranny only had 42k on it.

 

A lil dirt never hurt anyone or anything. It adds character.........yeah thats it. On that day I would have been more then happy to sit next to you anywhere you'd have liked. Since my much smaller cammed stock headed car puts down close to what yours did . Just remember when you are spinning you aren't going anywhere. And if you hope to get me, you'd better be packin more then that. You'll need 400+rwhp to compete. In all seriousness start with a real tune. If that don't fix it. Drop the tranny and have the guy who built mine do it. I'm told he's built jeff's, mine, jk's, and many others who are going very very fast on a 4l60e. If that don't fix it. We'll have to go back to it being scared.

Joe

 

I know you just didn't crack on my car. I would burn you 3+ cars any day w/o spinning. Heck, I would give you a car Yep, I am that confident. And I didn't say I sat there and spun, as in not going anywhere, I said I caught a wheel. Snappy shifting, which has probably costed me. I don't know why you think you and your bud Darrin have any room to say my car is slow, or compare it to yours in any kind of way. But, I guess that is Durham for ya

I have a tranny builder here in town. He can do a 4L60E in the dark, lol As far as a real tune, I am pretty close on most things w/ PCMforless. The BLMs are decent for right now, along w/ other things. But I don't doubt a real tune would really help me out.

But in all seriousness, don't compare your car to mine.

 

A dyno is much easier on a car than the track, FYI.

Good luck. Dyno and street tuning will help the car pick up power/drive better (respectively).

If it was easy to make big power everyone would be doing it .

Ryan

 

The only way a dyno could be easier on your car is how it starts out so slowly. Your car is never going to twist that high, i.e., 6000-6800 rpms at 130-145mph or more at the track, unless it is a pure monster Spinning that high w/ the high mph is more hazardous. I would rather stall high, burn some rubber, and run 11's at 110+ shifting around 6500 or so, instead of running, 6500+ and 140+ mph on a dyno.

I guess either way, you take a chance w/ both

Good points though And dyno tuning I know is mainly what I need.

 

95_Ripper Z,

That isn't good news, but news I am now ready to accept, if true.
I am going to get it looked at and checked by my mechanic when the weather clears. That car doesn't see rain! I haven't had it to the track w/ this new combo, but I think it would yield high 11's w/ a good 60'.

You say something about a high end miss around 6500? Sometimes when I am just cruising, around 60mph or so, I feel a little hesitation, barely, repeatedly, just very small. I run through the scanmaster, but all is well in the engine dept. Wow.

I wonder if my tranny guy can look at it and just be able to tell before it happens. Yikes.


If I have to get a new tranny, I think I will use art carr parts, since I have heard so many good things Thanks for your info!!

 

yeah i did. And the orange striped monster doesn't scare me in the least and as a matter of fact neither does its driver So you'll give me a car eh? How about the car and the kick since mines so much slower then yours? And I never said me and darren were sayin its slow. I know what its run and it was impressive. Just remember though if the tranny is slippin its gonna cost ya against my freshly built tranny. Now quit messin around and go get it fixed. It doesn't ALWAYS have to be a show car .

Joe