why the torque curve of the legacy engines?

loudbay · 01-27-2005, 08:15 PM

Is it just the turbo that has this characteristic? everything else i could find said the engines were the same....

two LGT stock dyno graphs
http://legacygt.com/forums/showthrea...ght=dyno+chart

a d.d. dyno read an ecutek relashed lgt at about 208hp and 215 tq here
http://legacygt.com/forums/attachmen...achmentid=3101

and 202hp 231ftlbs
http://legacygt.com/forums/attachmen...achmentid=1083

211hp 250ftlbs with stage 1 cobb ecu flash 14.7psi....
http://legacygt.com/forums/attachmen...achmentid=3748

and official cobb results
stage 1 285hp 305ftlbs totally stock lgt 14.5psi MOST of torque by 3k
stage 2 300hp 345ftlbs 3 inch dp and 2.5 inch mufflers (2 of them) 16.3 psi and max torque at 3200rpms! I like that!
http://www.legacygt.com/forums/showthread.php?t=6872

To be honest, I kind of like those last 2.... that would be a very useable engine for autox.... i wish i could shut my brain down sometimes... Matt

* Registered users of the site do not see these ads.

XT6Wagon · 01-27-2005, 10:00 PM

You can get massive midrange on a Sti using the same methods of tuning.

Also the stage 1 map is intentionaly detuned on the AP. Don't know why, but it is.

roadtalontsi · 01-27-2005, 10:06 PM

Are the cams the same on sti and legacy gt?

Tuning Factory Inc. · 01-27-2005, 11:44 PM

Here are more charts of some tests I did recently.

Stock v. Uppipe and Godspeed Downpipe. Stock everything else.

Here stock v. Uppipe, Godspeed Downpipe and Accessport

loudbay · 01-28-2005, 12:07 AM

290ftlbs at 3400 rpms would be a slayer in mygc8.... sux you have to use the intercooler and manifold to use this turbo easily.....

santofontana · 01-28-2005, 12:23 AM

Sorry for the dumb question but what turbo do lgts have?

Timdog1650 · 01-28-2005, 12:31 AM

Quote:

Originally Posted by santofontana

Sorry for the dumb question but what turbo do lgts have?

vf40. Tiny little hotside...it's just a baby!

chucktoo · 01-28-2005, 05:40 AM

It is really helpful to look at the boost curve at the same time.

I think you will find the VF-40 just runs out - it is really tiny.

Today the biggest drop in turbo is Deadbolts 18G which is still pretty small. If you want a real turbo today you have to change a lot of plumbing .

happasaiyan · 01-28-2005, 06:56 AM

the vf40 has teh suck.

mbiker97 · 01-28-2005, 09:36 AM

Quote:

Originally Posted by god

Here are more charts of some tests I did recently.

Those are very nice gains with very minimal mods. Have you tested a full turboback yet (do they even exist)?

Tuning Factory Inc. · 01-28-2005, 10:49 AM

Well you can team up my downpipe with a Blitz Nur Spec Touring cat back and you have a turboback.

01-27-2005, 08:15 PM	#1
loudbay Scooby Newbie Member#: 72474 Join Date: Oct 2004	why the torque curve of the legacy engines? Is it just the turbo that has this characteristic? everything else i could find said the engines were the same.... two LGT stock dyno graphs http://legacygt.com/forums/showthrea...ght=dyno+chart a d.d. dyno read an ecutek relashed lgt at about 208hp and 215 tq here http://legacygt.com/forums/attachmen...achmentid=3101 and 202hp 231ftlbs http://legacygt.com/forums/attachmen...achmentid=1083 211hp 250ftlbs with stage 1 cobb ecu flash 14.7psi.... http://legacygt.com/forums/attachmen...achmentid=3748 and official cobb results stage 1 285hp 305ftlbs totally stock lgt 14.5psi MOST of torque by 3k stage 2 300hp 345ftlbs 3 inch dp and 2.5 inch mufflers (2 of them) 16.3 psi and max torque at 3200rpms! I like that! http://www.legacygt.com/forums/showthread.php?t=6872 To be honest, I kind of like those last 2.... that would be a very useable engine for autox.... i wish i could shut my brain down sometimes... Matt * Registered users of the site do not see these ads.

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01-27-2005, 10:00 PM	#2
XT6Wagon Scooby Specialist Member#: 524 Join Date: Nov 1999 Location: WA Vehicle: 04 STi White	You can get massive midrange on a Sti using the same methods of tuning. Also the stage 1 map is intentionaly detuned on the AP. Don't know why, but it is.

01-27-2005, 10:06 PM	#3
roadtalontsi Scooby Newbie Member#: 64572 Join Date: Jun 2004 Chapter/Region: TXIC Location: tx Vehicle: 2007 Sti Swp c/f'd out.	Are the cams the same on sti and legacy gt?

01-27-2005, 11:44 PM	#4
Tuning Factory Inc. Vendor Member#: 3600 Join Date: Jan 2001 Location: Detroit, Michigan, USA	Here are more charts of some tests I did recently. Stock v. Uppipe and Godspeed Downpipe. Stock everything else. Here stock v. Uppipe, Godspeed Downpipe and Accessport

01-28-2005, 12:07 AM	#5
loudbay Scooby Newbie Member#: 72474 Join Date: Oct 2004	290ftlbs at 3400 rpms would be a slayer in mygc8.... sux you have to use the intercooler and manifold to use this turbo easily.....

01-28-2005, 12:23 AM	#6
santofontana Scooby Specialist Member#: 26876 Join Date: Oct 2002 Chapter/Region: NESIC Location: 1990 GMC Sierra 4x4 350ci Vehicle: 1994 Camaro Z28 383 Black M6	Sorry for the dumb question but what turbo do lgts have?

01-28-2005, 05:40 AM	#8
chucktoo Scooby Newbie Member#: 59539 Join Date: Apr 2004 Location: Framingham Vehicle: 2005 Outback 2.5 XT Silver	It is really helpful to look at the boost curve at the same time. I think you will find the VF-40 just runs out - it is really tiny. Today the biggest drop in turbo is Deadbolts 18G which is still pretty small. If you want a real turbo today you have to change a lot of plumbing .

01-28-2005, 06:56 AM	#9
happasaiyan Scooby Specialist Member#: 37731 Join Date: Jun 2003 Chapter/Region: MWSOC Location: Rolling Meadows, IL Vehicle: '07 TL-S 6MT '07 RDX-T	the vf40 has teh suck.

01-28-2005, 10:49 AM	#11
Tuning Factory Inc. Vendor Member#: 3600 Join Date: Jan 2001 Location: Detroit, Michigan, USA	Well you can team up my downpipe with a Blitz Nur Spec Touring cat back and you have a turboback.