Engine Tuned Poorly?

MyStang02 · August 25th, 2006, 06:00 PM

Has anyone ever gotten a Dyno tune and not been satisfied with the results?
I've invested about 6K into an engine. Then I took it to a Tuner and then the Dragstrip. I ran faster before with my old set up than the new built engine. My 60ft. went from 2.0-2.1 up to 2.296-2.3's. My E.T's before 13.5-13.7 now 13.7-13.9 The first set up my engine was screaming through the lights at 6500-6700RPM but, now It's about 5000RPM. WTF

For refrence my old setup was a stock engine with Cam's,CAI,etc. The new engine has forged internals,10:5/1 compression,ported heads and the same cams and yes the cams have been degreed in. It just doesn't make scents. Note:my MPH is up 4MPH but other than that no gaines.

Should I dispute the charges on my C.card? I paid a lil over a grand for @#%$&! Let me know what you think.

03 R Code · August 25th, 2006, 06:09 PM

Did you get a before and after dyno sheet from the tuner? Were the power gains reflected? If not then I would take it back to the tuner and tell them.

GTSilver · August 25th, 2006, 06:17 PM

definately take it back and tell them that your unhappy with your tune. If they are a straight up shop with a good rep they should retune you car to your specs...that's what you paid for...shops that screw their customers dont last long, but like anything else, there's a few bad apples in any bunch. if they dont fix it, dispute the charges and contact your local better business bureu.

GTSilver · August 25th, 2006, 06:17 PM

PIMP. Very PIMP.

GTSilver · August 25th, 2006, 06:19 PM

oops...sorry didnt mean to put the pimp part...my bad...(wrong reply to wrong topic)

Drgnracin72 · August 25th, 2006, 09:45 PM

any good tuner should warrent his work, and if its not up to par with what you want he should fix on his time and not your dime!

sickness · August 29th, 2006, 01:28 PM

i tuned my car by seat of pants i took it to a tuner and they told me it was all F'ed up.. well i gave then 200 buck they tuned it and i went to the track car .93 slower in the 1/4 consistantly.. i just put my tune back the way i had it.. thought about all the options i could do.. but would prolly in the end piss me off and i will end up in jail.. there for i will adjust accordingly untill it don't work anymore then i will go to mustang depot or something and have it tuned.. for what that is worth????

MyStang02 · August 29th, 2006, 01:43 PM

Hey thanks guys! Heres what I've decided to do. I'm going to dispute the charges on my card. I tried twice to contact them and they won't call me or email me. I'm gonna open up the Diablo see how they set everything and write it down. Then, adjust whatever I see that needs adjustment and use the seat of my pants and timeslips to let me know what to do. I know one thing for sure it shifted much firmer before. I'm headed to the track tonight I'll keep you all posted. WML

Drgnracin72 · August 29th, 2006, 08:51 PM

you know a good tune isnt always about hauling ass. you need to take into account the driveability, and also how safe it is for the motor

MyStang02 · August 30th, 2006, 10:15 AM

DRGNRACIN72

Not to be a smart ass but...
How would you feel if it was your mustang doing the same thing as mine? Check up top and reread what I posted. This is a new built engine not some old 120,000 miler. I spent mega $$$ and now I'm running slower than my stock motor with cams ran.

My car was suppose to be tuned for all out drag racing not sounding good at car shows.

Drgnracin72 · August 30th, 2006, 05:57 PM

i understand what your saying. weith my car i could probably pick up some more power but it wouldnt run as smoothly through the ropm range and since mine is a driver/racer i want it to run nicely on the street also. ic what your saying though. if its your race car take it back and make tune it on the edge!

Justin@VMP · August 31st, 2006, 03:34 PM

Unfortunately you won't be able to go into the Diablo Predator and see any of the real changes that were made in the file.

What do you have done to the car?

Sable · August 31st, 2006, 03:43 PM

If you put forged internals in a NA car it is not uncommon to see losses like you did. The whole point of forging it is for added boost. Also, you car may just need to be driven and broken in. Perhaps you went for the tune too soon? Just a thought....

MyStang02 · August 31st, 2006, 03:59 PM

DSS Pro Mod 4.6 shortblock w/ 10:5-1 forged pistons,rods,new block and balanced crank w/girdle,Patriot Stage II heads,Comp XE278AH cams,75mm plenum & TB,30lb. injectors,BBK CAI,SLP long tube headers,SLP x-pipe,SLP catback w/loudmouth II's,3000 Stallion conv.,4.10 gear,many suspension upgrades,BFG drag radials and the Diablo Predator. I'm still running the stock PI intake though. After the dyno tune= 267rwhp on a Mustang dyno. Took the car to the dragstrip twice now and ran 13.7-13.9. This car on my stock motor with the above items less the DSS shortblock,ported heads and cams and no converter ran 13.7's WTF. I'm so @#%$ frustrated.

MyStang02 · August 31st, 2006, 04:09 PM

Originally Posted by Sable

If you put forged internals in a NA car it is not uncommon to see losses like you did. The whole point of forging it is for added boost. Also, you car may just need to be driven and broken in. Perhaps you went for the tune too soon? Just a thought....

No the whole point was to be balanced "higher RPM"and strong. The forged pieces and the balancing with higher compression should add up to more HP. Then I installed the biggest n/a cams 278's and ported cyl. heads stage II's ,3000 stall conv. and the SLP longtubes.

MM &FF built a similar engine with my cams and squeezed 395HP out of it at the flywheel.

Go figure!

Drgnracin72 · August 31st, 2006, 08:45 PM

sounds like your car needs some help. mine will only make around 300 n/a hp but thats becasue its a low compression motor. mine compression checked out at about 8.5:1 but yeah your right, you should def be making a lot more power thn that . where do you live?

raceruler03 · August 31st, 2006, 08:48 PM

you might try biger injectors, but it should definately be making more power

MyStang02 · September 1st, 2006, 09:51 AM

Originally Posted by raceruler03

you might try biger injectors, but it should definately be making more power

Not that MM & FF is the Bible but I kind of built this engine along the lines of one of the build ups in it. If you go to www.dssracing.com and look under magazine articles you'll see a 9:0-1 DSS sb w/24lb. injectors making 395HP at the flywheel w/my 278 cams. The guy that did my tune suggested 30lb. injectors. They did use a different intake "Bullitt" mine is the PI. So, I'd wave approx. 10HP for the intake but would expect more HP from the higher compression.
My car with the automatic loses approx 25-30% in the drivetrain on a Mustang Dyno. So if I take 267rwhp and add 25-30% = 334-347HP at the flywheel. That would mean I'm approx. 50-60HP shy of the MM & FF build.

MyStang02 · September 1st, 2006, 09:52 AM

Originally Posted by raceruler03

you might try biger injectors, but it should definately be making more power

Not that MM & FF is the Bible but I kind of built this engine along the lines of one of the build ups in it. If you go to www.dssracing.com and look under magazine articles you'll see a 9:0-1 DSS sb w/24lb. injectors making 395HP at the flywheel w/my 278 cams. The guy that did my tune suggested 30lb. injectors. They did use a different intake "Bullitt" mine is the PI. So, I'd wave approx. 10HP for the intake but would expect more HP from the higher compression.
My car with the automatic loses approx 25-30% in the drivetrain on a Mustang Dyno. So if I take 267rwhp and add 25-30% = 334-347HP at the flywheel. That would mean I'm approx. 50-60HP shy of the MM & FF build.

Sable · September 1st, 2006, 12:18 PM

With what you have done I would expect better times then when you were stock. As for the tuner being bad...hard to say. It's always tought to build a motor based on an article and then expect the same numbers. Too many variables here. SAE corrections, altitude, humidty, temps, etc....to tough to base your expectations on that.

August 25th, 2006, 06:00 PM	#1
MyStang02 Newbie Join Date: Jul 2006 Posts: 31 iTrader: 0 reviews	Engine Tuned Poorly? Has anyone ever gotten a Dyno tune and not been satisfied with the results? I've invested about 6K into an engine. Then I took it to a Tuner and then the Dragstrip. I ran faster before with my old set up than the new built engine. My 60ft. went from 2.0-2.1 up to 2.296-2.3's. My E.T's before 13.5-13.7 now 13.7-13.9 The first set up my engine was screaming through the lights at 6500-6700RPM but, now It's about 5000RPM. WTF For refrence my old setup was a stock engine with Cam's,CAI,etc. The new engine has forged internals,10:5/1 compression,ported heads and the same cams and yes the cams have been degreed in. It just doesn't make scents. Note:my MPH is up 4MPH but other than that no gaines. Should I dispute the charges on my C.card? I paid a lil over a grand for @#%$&! Let me know what you think.

August 25th, 2006, 06:17 PM	#3
GTSilver Enthusiast Join Date: Aug 2006 Posts: 698 iTrader: 0 reviews	definately take it back and tell them that your unhappy with your tune. If they are a straight up shop with a good rep they should retune you car to your specs...that's what you paid for...shops that screw their customers dont last long, but like anything else, there's a few bad apples in any bunch. if they dont fix it, dispute the charges and contact your local better business bureu. __________________ 2002 GT K&N CAI O/R X-Pipe Race Bullit Mufflers SCT Xcal2 w/Custom Tune By RWTD 4.10 Rear Nitto D/R's FR500 Rims 17x9 17x10.5

August 25th, 2006, 06:17 PM	#4
GTSilver Enthusiast Join Date: Aug 2006 Posts: 698 iTrader: 0 reviews	PIMP. Very PIMP. __________________ 2002 GT K&N CAI O/R X-Pipe Race Bullit Mufflers SCT Xcal2 w/Custom Tune By RWTD 4.10 Rear Nitto D/R's FR500 Rims 17x9 17x10.5

August 25th, 2006, 06:19 PM	#5
GTSilver Enthusiast Join Date: Aug 2006 Posts: 698 iTrader: 0 reviews	oops...sorry didnt mean to put the pimp part...my bad...(wrong reply to wrong topic) __________________ 2002 GT K&N CAI O/R X-Pipe Race Bullit Mufflers SCT Xcal2 w/Custom Tune By RWTD 4.10 Rear Nitto D/R's FR500 Rims 17x9 17x10.5

August 25th, 2006, 09:45 PM	#6
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,638 iTrader: 2 reviews	any good tuner should warrent his work, and if its not up to par with what you want he should fix on his time and not your dime! __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

August 25th, 2006, 06:09 PM	#2
03 R Code MM Fanatic unstoppable @ speed of light Join Date: Jul 2006 Location: Knees deep in dat ass Posts: 3,103 iTrader: 0 reviews	Did you get a before and after dyno sheet from the tuner? Were the power gains reflected? If not then I would take it back to the tuner and tell them.

August 29th, 2006, 01:28 PM	#7
sickness Newbie Join Date: Aug 2006 Location: Kentucky Posts: 8 iTrader: 0 reviews	i tuned my car by seat of pants i took it to a tuner and they told me it was all F'ed up.. well i gave then 200 buck they tuned it and i went to the track car .93 slower in the 1/4 consistantly.. i just put my tune back the way i had it.. thought about all the options i could do.. but would prolly in the end piss me off and i will end up in jail.. there for i will adjust accordingly untill it don't work anymore then i will go to mustang depot or something and have it tuned.. for what that is worth????

August 29th, 2006, 01:43 PM	#8
MyStang02 Newbie Join Date: Jul 2006 Posts: 31 iTrader: 0 reviews	Hey thanks guys! Heres what I've decided to do. I'm going to dispute the charges on my card. I tried twice to contact them and they won't call me or email me. I'm gonna open up the Diablo see how they set everything and write it down. Then, adjust whatever I see that needs adjustment and use the seat of my pants and timeslips to let me know what to do. I know one thing for sure it shifted much firmer before. I'm headed to the track tonight I'll keep you all posted. WML

August 29th, 2006, 08:51 PM	#9
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,638 iTrader: 2 reviews	you know a good tune isnt always about hauling ass. you need to take into account the driveability, and also how safe it is for the motor __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

August 30th, 2006, 10:15 AM	#10
MyStang02 Newbie Join Date: Jul 2006 Posts: 31 iTrader: 0 reviews	DRGNRACIN72 Not to be a smart ass but... How would you feel if it was your mustang doing the same thing as mine? Check up top and reread what I posted. This is a new built engine not some old 120,000 miler. I spent mega $$$ and now I'm running slower than my stock motor with cams ran. My car was suppose to be tuned for all out drag racing not sounding good at car shows.

August 30th, 2006, 05:57 PM	#11
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,638 iTrader: 2 reviews	i understand what your saying. weith my car i could probably pick up some more power but it wouldnt run as smoothly through the ropm range and since mine is a driver/racer i want it to run nicely on the street also. ic what your saying though. if its your race car take it back and make tune it on the edge! __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

August 31st, 2006, 03:34 PM	#12
Justin@VMP Newbie Join Date: Aug 2006 Location: Central FL Posts: 29 iTrader: 1 reviews	Unfortunately you won't be able to go into the Diablo Predator and see any of the real changes that were made in the file. What do you have done to the car?

August 31st, 2006, 03:43 PM	#13
Sable Regular 2002 Mustang GT 12.8@109 Join Date: Aug 2006 Location: Akron, Ohio Posts: 106 iTrader: 0 reviews	If you put forged internals in a NA car it is not uncommon to see losses like you did. The whole point of forging it is for added boost. Also, you car may just need to be driven and broken in. Perhaps you went for the tune too soon? Just a thought.... __________________ 2002 True Blue Mustang GT M5 309 rwhp 320 rwtq tune by Big Shot Dyno Best: 12.8 @ 109 mph 2004 Cosmos GTO M6 (1 of 366) 530 RWHP 510 RWT Tuned by Back Street Performance Best: 11.33 @ 129mph

August 31st, 2006, 03:59 PM	#14
MyStang02 Newbie Join Date: Jul 2006 Posts: 31 iTrader: 0 reviews	DSS Pro Mod 4.6 shortblock w/ 10:5-1 forged pistons,rods,new block and balanced crank w/girdle,Patriot Stage II heads,Comp XE278AH cams,75mm plenum & TB,30lb. injectors,BBK CAI,SLP long tube headers,SLP x-pipe,SLP catback w/loudmouth II's,3000 Stallion conv.,4.10 gear,many suspension upgrades,BFG drag radials and the Diablo Predator. I'm still running the stock PI intake though. After the dyno tune= 267rwhp on a Mustang dyno. Took the car to the dragstrip twice now and ran 13.7-13.9. This car on my stock motor with the above items less the DSS shortblock,ported heads and cams and no converter ran 13.7's WTF. I'm so @#%$ frustrated.

August 31st, 2006, 08:45 PM	#16
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,638 iTrader: 2 reviews	sounds like your car needs some help. mine will only make around 300 n/a hp but thats becasue its a low compression motor. mine compression checked out at about 8.5:1 but yeah your right, you should def be making a lot more power thn that . where do you live? __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

August 31st, 2006, 08:48 PM	#17
raceruler03 Enthusiast 2000 mustang gt Join Date: Aug 2006 Location: georgia Posts: 913 iTrader: 0 reviews	you might try biger injectors, but it should definately be making more power __________________ http://i157.photobucket.com/albums/t...donecopy-1.jpg

September 1st, 2006, 12:18 PM	#20
Sable Regular 2002 Mustang GT 12.8@109 Join Date: Aug 2006 Location: Akron, Ohio Posts: 106 iTrader: 0 reviews	With what you have done I would expect better times then when you were stock. As for the tuner being bad...hard to say. It's always tought to build a motor based on an article and then expect the same numbers. Too many variables here. SAE corrections, altitude, humidty, temps, etc....to tough to base your expectations on that. __________________ 2002 True Blue Mustang GT M5 309 rwhp 320 rwtq tune by Big Shot Dyno Best: 12.8 @ 109 mph 2004 Cosmos GTO M6 (1 of 366) 530 RWHP 510 RWT Tuned by Back Street Performance Best: 11.33 @ 129mph

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Engine Tuned Poorly?

Engine Tuned Poorly?

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