Mustang dyno. Does that tell you anything?

 

GRAPH!!! Its a bad picture but I'll get a scan thursday.

http://ls1tech.com/forums/showthread.php?t=834733

 

Ahh. Yes, different dynos read differently. 455 on a Dynojet would have been unheard of, Mustangs read differently. They are a still a great tuning too and I'm sure your car runs like a bear, enjoy!! The little road time glitches can be worked out too if you get your tuner to do some road scanning and tweaking. It us worth it for you to pay him to do so if your car is a daily driver. I bought hptuners and learned from my buddy and the forums and my car runs like stock.

In any case have fun and be careful! Traction is now your next goal!

 

345s and a widebody would be nice. Its on the list.

 

Your cam specs are identical to a Texas Speed Torquer 2, it makes pretty good power and its a pretty popular cam in the F body crowd.

 

That is mostly what he works on.

 

160 stat and Fast 90, if you want to go fast, and get a good tuner to tune all the extra power..ported intake gives you only 10 in mid band, FAST 90 can give you as much as 25rwhp and torque in the mid band and 15rwhp at peak..

 

I saw an install of the FAST intake manifold into a C5 and it was labor intensive as the cowl had to be cut. Is that the same with the C6 manifold or does the C6 have more room for the FAST manifold to fit under the cowl?

 

My shop built the car and im impressed but it has more... i recently did a ls2 gto and it did 458hp 429 tq with the same cam....

dynojets read higher than a mustang dyno... this car would make about 10 or so more on a dynojet... once we get the new intake and injectors we are goin to dyno it on both....

 

Its an off the shelf cam that has been around for 5 years or so. It is in the comp catalog: XER281hr....its a bit choppy. The G5x2 by comparison has more exhaust duration on a softer lobe with less lift. Same intake lobe. It may be beneficial to get this cam on a 114+2 advance. It likes compression. With ETP's and 11.8:1 its at the 500rwhp line. The compression tames the lope a bit.

 

mike crew huh? its Fran.... i thought u knew where my shop was.... i heard you got a vette.... how do you like it?

 

Goto page 4 there is a thread "Modified fast install" by spinmonster. That Fast 90 went in mine by spinmonster..Gives about everything you need to know about this intake...

 

Sorry, but the more I look at this I have a tough time believing those numbers. I wonder if your tuner isn't playing a few games. 454 rwhp with stock heads, I don't think so.

 

Feel free to discuss this with him. I trust my tuner.

 

I have almost same setup as you do. Exact same cam, Halltech stinger intake, ported TB, Melrose Headers and Xpipe with Random Cats.
Great sounding cam but a little surging around 1800 when letting off throttle. My tuner uses EFI Live and only got 420.1 hp and 399 torque
on a Dynojet.

Still needs a little tweaking as when cold it will not start on first hit f the button. Have to spin it over twice and then restart car. Ok when warm.

What tuning system did your tuner use ?

 

check my threads over on ls1tech i am a sponsor over their and just did a gto with very similar mods and it made 458hp and 429tq..... what games could we play?

 

Dunno why I'm getting involved in this on Christmas day... but different dynos read differently. Dynojets are reasonably hard to fool if the numbers are corrected to SAE as they just calculate TQ (and thus HP) based on the amount of time it takes to spin up a known weight (2 heavy rollers). As I understand it the other types apply resistance to the rollers in various manners, and the manner varies from model and from dyno to dyno thus the results are not as comparable. Dynos are tuning tools, not for bragging rights, but everybody including myself seems to get a little caught up in the number sometimes.

Truth is peak numbers don't mean squat - I see many centrifigual blown cars with huge peak numbers that get whooped by H/C cars on the track with 100 less peak rwhp as the blowers don't make good power until the 2nd 1/8 mile and the race is won or lost in the first 330 ft (really 60 ft) and low end TQ gets you off the line.

Here's an example - my car, same mods (as shown in sig EXCEPT for the cam and gasket change), different dynos. 424 rwhp on a Dyno Dynamics, 386 RWHP on a Dynojet.

Which is correct? Who cares but the Dynojets do seem very comparable across the country (there was a thread on Am. Racing header dyno results that had a dozen cars within 5 rwhp/tq of each other).

 

your comparing 2 diff cams... OF COURSE the results will be diff...

 

Whats up Fran!!! Yeah, I know where your shop is...I didn't put 2 and 2 together at first that the shop in Claymont that Navy was talking about was yours.....Hows business? Yeah I got an new black 07 back in May. I love it. I've only done a few things to it so far.....Vararam, Borla Stingers, MGW shifter, 160 degree stat, and a Predator tune. I'm going to be doing LG Headers, Ported Intake and TB, and a dyno tune in the next couple months....I'll be in to talk to you. I was planning on doing the work myself, but maybe we can do some business on the headers or the dyno...Who do you use?
Merry Christmas

Crew

 

The graph shows to be running rich, under 12.5, are you doing this for conservative (safety) reasons ?

Is this reading taken before or after the cats ?