Turbo lag? - Competition Diesel.Com

yamt03 · 02-04-2008, 01:12 PM

What can I do to help get rid of the lag in my wife's 2005 5.9? I have done the usual AFE II,4' exhaust and a BD X moniter. Any suggestion on what I can do?

zstroken · 02-04-2008, 01:20 PM

Through some more fuel to it.

***Timbeaux*** · 02-04-2008, 01:25 PM

Has it always been piggy? if not, I'd see about having it re-flashed.

yamt03 · 02-04-2008, 01:47 PM

Quote:

Originally Posted by Timbeaux38

Has it always been piggy? if not, I'd see about having it re-flashed.

Yeah it has been this way since we got it,but I thoght the X moniter would change it like it did on my 7.3 after I put in my DP tuner, but it's still there. It's not too bad but it's there and needs to go away.

BgBlDodge · 02-04-2008, 02:26 PM

Stock turbos shouldn't be laggy. I'd say there's something else going on if it is indeed laggy.

DieselAddiction · 02-04-2008, 03:42 PM

Clean the air filter and fuel filter. Bullydog or smarty with tq management altering will help also

Scooter's Roofing · 02-04-2008, 04:42 PM

smarty

Begle1 · 02-04-2008, 05:12 PM

Nitrous should work well.

*Bob Wagner* · 02-04-2008, 07:13 PM

smarty junior 40-70-100 hp and less than 500.00

Kman9090 · 02-05-2008, 01:21 AM

Something might be wrong. I had a stock 2002 then went and bought a 2004 and it was a night and day difference. Both of them were autos and completly stock. Something might be wrong your wifes truck should be walking all over yours.

yamt03 · 02-05-2008, 08:17 AM

Quote:

Originally Posted by Kman9090

Something might be wrong. I had a stock 2002 then went and bought a 2004 and it was a night and day difference. Both of them were autos and completly stock. Something might be wrong your wifes truck should be walking all over yours.

I don't think anything is wrong with her truck. I ran it for codes Sunday and it didn't show any. Now I never said mine would out run hers,just said that when I hit my go pedal it's gone. Now hers will take a second or 2 and then I just way bye to her.

tristan21 · 02-05-2008, 08:24 PM

Theres always the way more expensive cam route you could take, or like the others said get her a smarty or smarty jr. It just feels super slow after youve tried it.

Stack that with a mild preassure box and almost all lag will be gone with the stock turbo.

However that thing should spool better than most of the aftermarket units ive heard of.

VMacKenzie · 02-05-2008, 08:32 PM

Maybe the MAP sensor isn't up to par and is suppressing the boost signal resulting in delaying fueling. It could be tweaked but not badly enough to set a code. Just 'cause there's no codes doesn't mean there isn't anything wrong.

Scooter's Roofing · 02-05-2008, 08:53 PM

you're comparing 7.3 liters with 17.5:1 compression to 5.9 liters with 17.2:1 compression...

Kman9090 · 02-05-2008, 09:06 PM

Yeah mine 2004 had that too. I think a chip will get rif of that but you still have turbo lag. The only way to get rid of it is to hold the brake and build boost or a cam, or even a set of twins. I think what your talking about is normal but maybe not. Got test drive a truck similar to that one and see what you think. A diesel takes a couple secs to get going, anything turbo does.

tristan21 · 02-05-2008, 09:07 PM

Wow forrest you just hit a Grand'r scale so to speak

Scooter's Roofing · 02-05-2008, 09:21 PM

Quote:

Originally Posted by Kman9090

Yeah mine 2004 had that too. I think a chip will get rif of that but you still have turbo lag. The only way to get rid of it is to hold the brake and build boost or a cam, or even a set of twins. I think what your talking about is normal but maybe not. Got test drive a truck similar to that one and see what you think. A diesel takes a couple secs to get going, anything turbo does.

twins won't help initial spool, they'll hurt

TheBigNasty · 02-05-2008, 09:53 PM

relative to the secondary turbo size

Scooter's Roofing · 02-05-2008, 09:59 PM

Quote:

Originally Posted by TheBigNasty

relative to the secondary turbo size

unless you go smaller on the secondary turbo, it's going to hurt... and if you go smaller on the secondary, you're shooting yourself in the foot.

you hang a turbo under another, and it's going to spool later than if you didn't have the bottom turbo restricting it on both sides

TheBigNasty · 02-05-2008, 10:14 PM

Ok forrest, what I meant to say is you know everything and lets all listen to you.

02-04-2008, 01:12 PM	#1
yamt03 Name: yamt03 Title: Green Behind the Ears Status: Not Here Join Date: Dec 2007 Location: Pasadena,TX Member`s Gallery Posts: 40	Turbo lag? What can I do to help get rid of the lag in my wife's 2005 5.9? I have done the usual AFE II,4' exhaust and a BD X moniter. Any suggestion on what I can do? __________________ Early 99 CC DRW AFE Stg II, 4" MBRP, Autometer,Zoodad,6.0 trans cooler, ITP,DP Tuner Former U.S.A. Res. MP & proud of it! 2005 Dodge 2500 4X4 Quad cab AFE Stg II, 4" MBRP, DiPricol pyro,boost &trans, BD XPower Plus

02-04-2008, 02:26 PM	#5
BgBlDodge Name: BgBlDodge Title: Hates hippies Status: Not Here Join Date: May 2007 Location: Buda, Tx Member`s Gallery Posts: 16,647	Stock turbos shouldn't be laggy. I'd say there's something else going on if it is indeed laggy. __________________ 2003 Nissan 350z Touring 6mt 2000 4runner Limited Tyler Williams We have become educated beyond our intelligence. -Jerry Clower

02-04-2008, 05:12 PM	#8
Begle1 Name: Begle1 Title: Too Much Time Status: Not Here Join Date: Nov 2007 Location: Kihei, Maui Member`s Gallery Posts: 4,142	Nitrous should work well. __________________ 1990 D-250 Regular Cab: Automatic transmission, turkey air horn, wires.

02-05-2008, 01:21 AM	#10
Kman9090 Name: Kman9090 Title: Too Much Time Status: Not Here Join Date: Dec 2007 Location: In Front of the Black Cloud in Missouri Member`s Gallery Posts: 4,445	Something might be wrong. I had a stock 2002 then went and bought a 2004 and it was a night and day difference. Both of them were autos and completly stock. Something might be wrong your wifes truck should be walking all over yours. __________________ 2008 Ford F-350 Tow Rig 1999 Fummin's 12v Puller Gilmore Diesel Performance Sponsored by D&B Performance and Fabrication

02-05-2008, 08:24 PM	#12
tristan21 Name: tristan21 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Marshfield,MO Member`s Gallery Posts: 392	Theres always the way more expensive cam route you could take, or like the others said get her a smarty or smarty jr. It just feels super slow after youve tried it. Stack that with a mild preassure box and almost all lag will be gone with the stock turbo. However that thing should spool better than most of the aftermarket units ive heard of. __________________ 04.5 dodge 4x4 4dr swb 6sp 35" Procomp xmt's, banks cac, smarty, mp-8, tst, flux3.3, flr it stg3, bd shrty, magnaflow, single s.s. 6" stack, fass 150, sbc dd #3600 02 dmax 4x4 crew lwb

02-04-2008, 01:20 PM	#2
zstroken Name: zstroken Title: For $$$ your name here Status: Not Here Join Date: Sep 2006 Location: Western Michigan(by the lake) Member`s Gallery Posts: 23,151	Through some more fuel to it.

02-04-2008, 03:42 PM	#6
DieselAddiction Name: DieselAddiction Title: Diesel Enthusiast Status: Not Here Join Date: Jun 2007 Location: Western PA Member`s Gallery Posts: 121	Clean the air filter and fuel filter. Bullydog or smarty with tq management altering will help also

02-04-2008, 04:42 PM	#7
Scooter's Roofing Name: Scooter's Roofing Title: Too Much Time Status: Not Here Join Date: Oct 2006 Member`s Gallery Posts: 17,007	smarty

02-04-2008, 07:13 PM	#9
Bob Wagner Name: Bob Wagner Title: Comp Diesel Sponsor Status: Not Here Join Date: Jun 2006 Member`s Gallery Posts: 2,750	smarty junior 40-70-100 hp and less than 500.00

02-05-2008, 08:32 PM	#13
VMacKenzie Name: VMacKenzie Title: Too Much Time Status: Not Here Join Date: Dec 2007 Location: Kennewick, WA Member`s Gallery Posts: 625	Maybe the MAP sensor isn't up to par and is suppressing the boost signal resulting in delaying fueling. It could be tweaked but not badly enough to set a code. Just 'cause there's no codes doesn't mean there isn't anything wrong.

02-05-2008, 08:53 PM	#14
Scooter's Roofing Name: Scooter's Roofing Title: Too Much Time Status: Not Here Join Date: Oct 2006 Member`s Gallery Posts: 17,007	you're comparing 7.3 liters with 17.5:1 compression to 5.9 liters with 17.2:1 compression...

02-05-2008, 09:06 PM	#15
Kman9090 Name: Kman9090 Title: Too Much Time Status: Not Here Join Date: Dec 2007 Location: In Front of the Black Cloud in Missouri Member`s Gallery Posts: 4,445	Yeah mine 2004 had that too. I think a chip will get rif of that but you still have turbo lag. The only way to get rid of it is to hold the brake and build boost or a cam, or even a set of twins. I think what your talking about is normal but maybe not. Got test drive a truck similar to that one and see what you think. A diesel takes a couple secs to get going, anything turbo does. __________________ 2008 Ford F-350 Tow Rig 1999 Fummin's 12v Puller Gilmore Diesel Performance Sponsored by D&B Performance and Fabrication

02-05-2008, 09:07 PM	#16
tristan21 Name: tristan21 Title: Too Much Time Status: Not Here Join Date: Jun 2007 Location: Marshfield,MO Member`s Gallery Posts: 392	Wow forrest you just hit a Grand'r scale so to speak __________________ 04.5 dodge 4x4 4dr swb 6sp 35" Procomp xmt's, banks cac, smarty, mp-8, tst, flux3.3, flr it stg3, bd shrty, magnaflow, single s.s. 6" stack, fass 150, sbc dd #3600 02 dmax 4x4 crew lwb

02-05-2008, 09:53 PM	#18
TheBigNasty Name: TheBigNasty Title: Project bish Status: Not Here Join Date: May 2007 Location: Magnolia, TX Member`s Gallery Posts: 5,385	relative to the secondary turbo size __________________ Brandon 2012 Ford F250 King Ranch 2004 Dodge 2500 Sport

02-05-2008, 10:14 PM	#20
TheBigNasty Name: TheBigNasty Title: Project bish Status: Not Here Join Date: May 2007 Location: Magnolia, TX Member`s Gallery Posts: 5,385	Ok forrest, what I meant to say is you know everything and lets all listen to you. __________________ Brandon 2012 Ford F250 King Ranch 2004 Dodge 2500 Sport