soundengineer

iTrader: (16)

superflow engine dyno...
not sure of engine size, but it wasnt anything crazy..


and you may trust your tuner...but with a result like that... I would second guess him and at least ask for a copy of the tune that you could email somebody like myself for a second opinion to see if theres anything obvious that looks like the culprit

MM98

iTrader: (13)

Don't waste your money on a 100mm maf.. Go put it on Abel's Dynojet & watch your #'s go up to the 430-450 range.. An even better idea would be to go to the track tmrw & see what it mph's. There's not a whole bunch you can do to a wot tune. Your's was at 28* timing with a 12.5-12.7 afr with no knock.

thunderstruck507

iTrader: (18)

I doubt the issue is his tune. His tuner is known to be one of the best in OK last I heard.

I would start with running it at the track and see what it does. Might be chasing a gremlin that doesn't exist.

soundengineer

iTrader: (16)

no knock does not mean best timing....
I've seen a lot of cars with timing at 28 and when backed down to 26 piked up quite a bit of power
also, 12.5-12.7 may be a bit rich...not saying it is...Just consider that theres power to be made if you play with the fueling as well

a flat 28* would be incorrect...
the LS1 likes a little dip in the timing around peak torque....not that its going to change the #'s up top..but it will change the #'s in the mid range

I agree with the track comment...
see what MPH it traps and that should give you a good indication..

also... meter your Voltage (or just log it in your scanner) and see what its doing...
I've seen a lot of cars(my own included) that had pretty good voltage drops as rpm went up...which cost power.
solutions include a higher output alternator, and better wiring(usually the Big3)

raysadude

iTrader: (11)

The dyno jet graph in the thread is from abel racing, I made 438.

I'm not upset about the peak hp, but rather I lost power between 3000rpm all the way up to 5900rpm, I may go to the track tomorrow to see what she does.

mikh338

iTrader: (16)

why is everyone comparing a fast 92 setup to his fast 102 setup? did i miss something here? ive heard time and time again that you will not benefit from a 102 unless you are over 400ci hence why i have not done it yet but want to.

MM98

iTrader: (13)

Agreed.. The same tuner who tunned the OP's car tunned mine.. I Started with 26* with no knock & then tried 28* & again had no knock.. The car didn't make any more power w/ 28* so we backed it down to 26* & left it.

I think if he's really caught up in the dyno #'s, he should put it on a dyno-jet & see if it picks up everywhere vs the mustang dyno.

raysadude

iTrader: (11)

And I will try to ask glen for the copy of the tune.

thunderstruck507

iTrader: (18)

That information is also bad.

The 102 is an improved replacement for the 92, not an upgrade for bigger engines. The TB size has very little to do with why it performs, it's about runner design.

mikh338

iTrader: (16)

yes i deff agree with that info. thats why you see many people making very good gains with stock cube motors and the 102.

mikh338

iTrader: (16)

i have a few local tuners that told me very firmly not to go with the 102 because of such low end loss etc...

soundengineer

iTrader: (16)

I've tuned several cars that switched from an LS1 or an LS6 intake....
none of them lost power anywhere...

there is an issue....
its just a matter of trying to figure out where it is.

raysadude

iTrader: (11)

If I swap to 100mm maf, what do you guys think will be the downfall to that? The fact that's. Its losing power anywhere across the board is what caught me not the peak number.

I messaged glen and I think he got a little bit pissed by me with me asking for the copy of the tune since he's busy, now I feel bad

raysadude

iTrader: (11)

Like I said I trust him 100% and I will have him tune my car when I get the 100mm maf. I hope he'll do it for me

soundengineer

iTrader: (16)

if somebody gets pissed when you ask for the tune....then they are either not doing it right or trying to hide something...or both

I dont care what somebody's reputation is...if they are a good tuner, they will let you have the file without being upset about it...

Tuning is not like its a one of a kind top secret voodoo any more like when people first started doing it.
either you are doing it correct, or you are not

MM98

iTrader: (13)

Why are you set on buying a 100mm maf? That's a waste of money & will you gain you lil if anything at all. My old H/C setup only made 385 to the rear wheels on a dyno jet, but trapped 115 in the 1/4 at full weight.. Going by a calculator that's more like 420 to the wheels.. Take your car to the track before you start wasting money on unnecessary mods.

427LS7HCI

Bigger is not always better.

OP, get rid of your 102 tb and go back to a 90 or 92 TB.

soundengineer

iTrader: (16)

I disagree....

In His case.. the 102 should be better than his ls6...and the 102tb should be better than his previous as well

again.... on a 346 ci engine(or any LSx engine), I've never seen a car lose power from swapping up to a 102 intake/tb combo

and I have tuned probably close to 20 of them now(maybe not as much as some people...but its more than enough to show that it works every time)

raysadude

iTrader: (11)

MM are you mike miller that glen called yesterday? I figure I can always sell it because my friend is building a stroker lq9 427 along with the 104 lid. I'll use this moment as an apple to apple comparison between my MAF and lid that I have right now with bigger one.

I'll take pic of the lid and MAF that I have right now, it's granatelli and it should be stocker size, but when I took a measurement today it was actually 90mm..and the lid is matching it.

I will still take it to the track, but the fact that lose power everywhere except for the peak on the same dyno and similar weather really bug me

raysadude

iTrader: (11)

Sound: in glen's defense I'd be pissed off too if my customer brought the car to me and have me tuned it and turn around and asking for the tune file because he/she thought that the problem is in the tune.
He's a very nice and stand up guy, he didn't even charge me anything when he looked up the tune.