Lost to a G8 GT...

matthewo · 05-22-2015, 07:53 AM

yeah you should have beat him by a lot. my previous car for 6 year before I just bought the 335i was a g8 gt, mine had a tune, long tubes, catted x pipe and stock mufflers, intake and ported manifold, it did around 340rwhp, it was fun, and very torque down low as it had a 6.0 v8, I know the 335i technically has more torque when tuned, but it just doesn't feel the same the g8 never had to wait for boost even if it comes on quick with the 335i.

regardless the g8 was a big heavy car, 4000lb+ and it did have LSD from the factory and that made it fun, but gearing was 2.92 and with basically made 5th and 6th gear not needed other then for highway crusing at 80 at 2000 rpms. lol

my g8 ran a 12.9 @ 109mph with a box tune and exhaust and intake, before my custom tune and ported manifold on street tires just flooring it. it had no drama at the still and rarely had a problem with traction on the street unless you were trying to have fun.

bottom line they are big heavy pigs that handle decently for their size, they are very consistent in their times due to weight RWD, and LSD when full bolt on. they do pretty good from a dig as its just floor it and it will hook very easy even on street tires. once you modify them with FI they work pretty well as long as you have the traction, wheel hop is a concern but can be fixed, the auto trans will hold around 550-600whp no problem, over that they need clutch packs.

there are multiple people in the 10s and at least 2 hit 9s.

I owned my G8 GT for 6 years and it was a great car, never once let me down, and it fun with the LSD, but in the end I want a manual turbo car that was lighter weight, and the interior and refinement of the BMW and built quality is much better. the G8 had a legendary NA engine tho...

here is a picture of my g8

Jklad · 05-22-2015, 08:53 AM

As others said, you need to fully turn of traction control. Hold the button down for 5 seconds or so until it tells you it's fully off. This is why you lost over and over. And over. Again.

chris82 · 05-22-2015, 08:55 AM

Quote:

Originally Posted by Antoniogaj

So I did a few races with a G8 GT and lost basically every one of them.

Mods:
335xi- jb4, catless downpipes, 7" intercooler, and dci. Running map 5 with 4 gallons of e85 mixed in.

G8 GT- tune, intake, and exhaust

Race #1: 30 mph roll. Traction control light kept coming on so and my car wouldn't move so he totally sh*t on me.

Race #2: 30 mph roll. Same thing. Traction control light kept coming on and he sh*t on me again.

Race #3: 30 mph roll. No traction control lights came on and he had about a car length on me.

Race #4: 30 mph roll. I beat him by about a car length. (Don't think he should even be close to me but whatever)

Race #5: Off a dig. I had about 1-2 cars on him before we let off. (Which makes no sense to me. I should've beat him by a lot.)

And that's about it. I definitely think I should be beating him by a lot more than I am, if I even beat him........ Is there something wrong with my car or what? I just put the jb4 in 2 days ago. No check engine lights or anything. I can't do a log because I don't have a USB cable at the moment. And also, should the traction control light be coming on? I don't see why I don't have any traction as I have AWD.

Should have bought a 335 . . . oh wait nvm

Nitrousbird · 05-22-2015, 09:37 AM

I'm not surprised. A full exhaust/intake/tune G8 GT should be making 370-380 RWHP. Weight will be similar to your Xi as well. It also has an LSD where your car has open front and rear diffs, so even though it's traction won't be as good, it won't be that far off.

For some reason the BMW guys typically use STD correction factor on dyno numbers vs SAE, so the numbers are inflated a bit compared to SAE most everyone else goes by.

Lshaw · 05-22-2015, 10:16 AM

Wheels/Tires set up? When i put on my new tires on my old xi, my traction control light was going crazy and couldn't keep power to the ground tires were brand new beefy snow tires.

Lol also my transfer case was on its way out as well...

Antoniogaj · 05-22-2015, 10:46 AM

To everyone saying I don't know how to turn traction control off... I do. I held it down so that the light with the circle arrow and the triangle with exclamation point inside the triangle came on. The DTC light was not on.

I am running Michelin Primacy MXM4 all season tire on 19" VMR V710's

Edit: Also, I will be meeting with a buddy of the owner of the G8 today who owns a FBO 335i. He's gonna drive my car and we're going to try and figure out what's wrong with my car. The 335i owner always spanks this G8 so i don't see why mine isn't... Maybe a boost leak is what he thinks.

Sambonjo · 05-22-2015, 11:08 AM

I have also raced a good buddy with a G8 GT. From a dig, I was consistently at least a few car lengths ahead before we let off. Both cars were completely stock at the time. Now the G8 has a tune, new cams and intake. We haven't done a true dig yet but just accelerating on the highway he is gaining on me.

Antoniogaj · 05-22-2015, 11:12 AM

Quote:

Originally Posted by Sambonjo

I have also raced a good buddy with a G8 GT. From a dig, I was consistently at least a few car lengths ahead before we let off. Both cars were completely stock at the time. Now the G8 has a tune, new cams and intake. We haven't done a true dig yet but just accelerating on the highway he is gaining on me.

Same happened when we were both stock. I was ahead of by a car or two.

But it doesn't make any sense for him to beat me after I put a jb4, dci, dp, and fmic while he only put a tune, intake, and exhaust in. Not to mention that I put 4 gallons e85 in my gas tank and he was running only 93.

Sambonjo · 05-22-2015, 11:16 AM

Ya I would expect you to beat him. I don't have any mods except intake so I don't know for sure how much all your mods add but I would expect you to win. Forgive the dumb question, but are your tires within 1% of each other? I think I saw you were Xdrive and if TC and DSC are completely off, tire mismatch is the only reason I can think of for any traction lights to still come up.

Jeff@TopGearSolutions · 05-22-2015, 11:27 AM

Log the vehicle and see how it looks.

Antoniogaj · 05-22-2015, 11:41 AM

Quote:

Originally Posted by Sambonjo

Ya I would expect you to beat him. I don't have any mods except intake so I don't know for sure how much all your mods add but I would expect you to win. Forgive the dumb question, but are your tires within 1% of each other? I think I saw you were Xdrive and if TC and DSC are completely off, tire mismatch is the only reason I can think of for any traction lights to still come up.

I have 235/40/19 all around. I'm not sure what the 1% really means to be honest.

Sambonjo · 05-22-2015, 11:49 AM

You are fine then. Basically the rolling diameter of all 4 tires needs to be within 1% of each other. If you look at tire size calculators, a 245 front and a 255 rear will not be within 1%. This means there are only a few staggered setups that work on xDrive. I don't know all the technical aspects of it, but if the tires are outside the 1% range, the xDrive system doesn't really know what to do.

JDuke335i · 05-22-2015, 12:52 PM

Quote:

Originally Posted by Antoniogaj

So I did a few races with a G8 GT and lost basically every one of them.

Mods:
335xi- jb4, catless downpipes, 7" intercooler, and dci. Running map 5 with 4 gallons of e85 mixed in.

G8 GT- tune, intake, and exhaust

Race #1: 30 mph roll. Traction control light kept coming on so and my car wouldn't move so he totally sh*t on me.

Race #2: 30 mph roll. Same thing. Traction control light kept coming on and he sh*t on me again.

Race #3: 30 mph roll. No traction control lights came on and he had about a car length on me.

Race #4: 30 mph roll. I beat him by about a car length. (Don't think he should even be close to me but whatever)

Race #5: Off a dig. I had about 1-2 cars on him before we let off. (Which makes no sense to me. I should've beat him by a lot.)

And that's about it. I definitely think I should be beating him by a lot more than I am, if I even beat him........ Is there something wrong with my car or what? I just put the jb4 in 2 days ago. No check engine lights or anything. I can't do a log because I don't have a USB cable at the moment. And also, should the traction control light be coming on? I don't see why I don't have any traction as I have AWD.

When the triangle with the arrow around it was blinking , was it cutting the power to your car ? Or just blinking

Antoniogaj · 05-22-2015, 12:57 PM

Quote:

Originally Posted by JDuke335i

When the triangle with the arrow around it was blinking , was it cutting the power to your car ? Or just blinking

It was cutting power from my car

JDuke335i · 05-22-2015, 01:04 PM

Quote:

Originally Posted by Antoniogaj

Quote:

Originally Posted by JDuke335i

When the triangle with the arrow around it was blinking , was it cutting the power to your car ? Or just blinking

It was cutting power from my car

Ok. That's weird. Mayb something is wrong. Hope u get it straighten out

n54door · 05-22-2015, 01:58 PM

Quote:

Originally Posted by Antoniogaj

So I did a few races with a G8 GT and lost basically every one of them.

Mods:
335xi- jb4, catless downpipes, 7" intercooler, and dci. Running map 5 with 4 gallons of e85 mixed in.

G8 GT- tune, intake, and exhaust

Race #1: 30 mph roll. Traction control light kept coming on so and my car wouldn't move so he totally sh*t on me.

Race #2: 30 mph roll. Same thing. Traction control light kept coming on and he sh*t on me again.

Race #3: 30 mph roll. No traction control lights came on and he had about a car length on me.

Race #4: 30 mph roll. I beat him by about a car length. (Don't think he should even be close to me but whatever)

Race #5: Off a dig. I had about 1-2 cars on him before we let off. (Which makes no sense to me. I should've beat him by a lot.)

And that's about it. I definitely think I should be beating him by a lot more than I am, if I even beat him........ Is there something wrong with my car or what? I just put the jb4 in 2 days ago. No check engine lights or anything. I can't do a log because I don't have a USB cable at the moment. And also, should the traction control light be coming on? I don't see why I don't have any traction as I have AWD.

TIRES! Buy a decent set, and game over.

Also, the JB4 has a sharp increase in power in the lower side of the powerband which makes the traction problem exponential.

You should look at getting a flash tune, IMO. It will help give you a more progressive power curve and better traction in the low end of the power band.

But, TIRES first!!! Can't stress that enough. I recommend Hankook Ventus EVO2 - great in the summer and rain, and they are a good bang for the buck.

Fundguy1 · 05-22-2015, 03:30 PM

Quote:

Originally Posted by Antoniogaj

I have 235/40/19 all around. I'm not sure what the 1% really means to be honest.

1% is the rolling outer diameter Difference between the tirea front to back. Why such tiny Lil rears? I like my cars Latino stYle. Wide in the rear.

jippii ensio · 05-22-2015, 04:20 PM

1. Get proper sticky tires
2. Log log log

Fundguy1 · 05-22-2015, 05:49 PM

Yeah. Get 235 front 275 rear Michelin Pilot Super Sports, non run flats or stickier.

boo5t3d · 05-23-2015, 12:34 AM

U have a jb4? U sure it's just not the shift light going off? Hazards blinking is the shift light.

marcvtec · 05-23-2015, 06:26 PM

He's running a square setup rim tire combo for all season, clearly.

Get staggered rims tires as stated above min. 265 rear, 275 even better.

He's basically racing on a winter tire combo from tire rack, LOL. Geeez.

Antoniogaj · 05-24-2015, 12:47 AM

Quote:

Originally Posted by marcvtec

He's running a square setup rim tire combo for all season, clearly.

Get staggered rims tires as stated above min. 265 rear, 275 even better.

He's basically racing on a winter tire combo from tire rack, LOL. Geeez.

True. Didn't really plan on having a fast car so I just took my wheels and tires from my 328 and put them on here.

On topic: 5 codes were thrown today. 2F8F, 29E1, 29E0, 29F4, 29F5. Couldn't find a boost leak or anything along those lines. Looked up those codes and didn't really seem like anything was a big deal. If anyone has more answers on those codes it would be greatly appreciated. Gonna log soon and find out what's wrong. Although I did end up beating a tuned Taurus SHO by a good amount from a dig last night. Not to mention I had a full car haha!

05-22-2015, 07:53 AM	#23
matthewo First Lieutenant 59 Rep 319 Posts Drives: 335i Join Date: Mar 2015 Location: SC iTrader: (2)	yeah you should have beat him by a lot. my previous car for 6 year before I just bought the 335i was a g8 gt, mine had a tune, long tubes, catted x pipe and stock mufflers, intake and ported manifold, it did around 340rwhp, it was fun, and very torque down low as it had a 6.0 v8, I know the 335i technically has more torque when tuned, but it just doesn't feel the same the g8 never had to wait for boost even if it comes on quick with the 335i. regardless the g8 was a big heavy car, 4000lb+ and it did have LSD from the factory and that made it fun, but gearing was 2.92 and with basically made 5th and 6th gear not needed other then for highway crusing at 80 at 2000 rpms. lol my g8 ran a 12.9 @ 109mph with a box tune and exhaust and intake, before my custom tune and ported manifold on street tires just flooring it. it had no drama at the still and rarely had a problem with traction on the street unless you were trying to have fun. bottom line they are big heavy pigs that handle decently for their size, they are very consistent in their times due to weight RWD, and LSD when full bolt on. they do pretty good from a dig as its just floor it and it will hook very easy even on street tires. once you modify them with FI they work pretty well as long as you have the traction, wheel hop is a concern but can be fixed, the auto trans will hold around 550-600whp no problem, over that they need clutch packs. there are multiple people in the 10s and at least 2 hit 9s. I owned my G8 GT for 6 years and it was a great car, never once let me down, and it fun with the LSD, but in the end I want a manual turbo car that was lighter weight, and the interior and refinement of the BMW and built quality is much better. the G8 had a legendary NA engine tho... here is a picture of my g8
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05-22-2015, 08:53 AM	#24
Jklad Lieutenant Colonel 427 Rep 1,643 Posts Drives: 2007 335i Coupe Join Date: Nov 2010 Location: Palatine, IL iTrader: (0)	As others said, you need to fully turn of traction control. Hold the button down for 5 seconds or so until it tells you it's fully off. This is why you lost over and over. And over. Again. __________________ 2007 E92 335i MT
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05-22-2015, 09:37 AM	#26
Nitrousbird Banned 441 Rep 1,602 Posts Drives: '07 E92 335i 6MT Join Date: Dec 2014 Location: Powell, OH iTrader: (2)	I'm not surprised. A full exhaust/intake/tune G8 GT should be making 370-380 RWHP. Weight will be similar to your Xi as well. It also has an LSD where your car has open front and rear diffs, so even though it's traction won't be as good, it won't be that far off. For some reason the BMW guys typically use STD correction factor on dyno numbers vs SAE, so the numbers are inflated a bit compared to SAE most everyone else goes by.
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05-22-2015, 10:16 AM	#27
Lshaw Lieutenant Colonel 256 Rep 1,873 Posts Drives: 09 335i 6mt Join Date: Oct 2007 Location: NYC/Pittsburgh iTrader: (21)	Wheels/Tires set up? When i put on my new tires on my old xi, my traction control light was going crazy and couldn't keep power to the ground tires were brand new beefy snow tires. Lol also my transfer case was on its way out as well... __________________ 07 335xi (2007-2010) 08 Legacy Spec B (08-) 09 335i (2010-) 15 X5 xdrive 35i (2015-) 17 Forester XT (2016-) Last edited by Lshaw; 05-22-2015 at 10:23 AM..
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05-22-2015, 10:46 AM	#28
Antoniogaj First Lieutenant 58 Rep 347 Posts Drives: F82 M4 Join Date: Sep 2013 Location: Macomb, Michigan iTrader: (1)	To everyone saying I don't know how to turn traction control off... I do. I held it down so that the light with the circle arrow and the triangle with exclamation point inside the triangle came on. The DTC light was not on. I am running Michelin Primacy MXM4 all season tire on 19" VMR V710's Edit: Also, I will be meeting with a buddy of the owner of the G8 today who owns a FBO 335i. He's gonna drive my car and we're going to try and figure out what's wrong with my car. The 335i owner always spanks this G8 so i don't see why mine isn't... Maybe a boost leak is what he thinks.
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05-22-2015, 11:08 AM	#29
Sambonjo Private First Class 20 Rep 115 Posts Drives: 2011 E90 335 Xdrive 6MT Join Date: Jan 2015 Location: Calgary iTrader: (0) Garage List 2011 BMW 335 Xdrive [0.00]	I have also raced a good buddy with a G8 GT. From a dig, I was consistently at least a few car lengths ahead before we let off. Both cars were completely stock at the time. Now the G8 has a tune, new cams and intake. We haven't done a true dig yet but just accelerating on the highway he is gaining on me.
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05-22-2015, 11:16 AM	#31
Sambonjo Private First Class 20 Rep 115 Posts Drives: 2011 E90 335 Xdrive 6MT Join Date: Jan 2015 Location: Calgary iTrader: (0) Garage List 2011 BMW 335 Xdrive [0.00]	Ya I would expect you to beat him. I don't have any mods except intake so I don't know for sure how much all your mods add but I would expect you to win. Forgive the dumb question, but are your tires within 1% of each other? I think I saw you were Xdrive and if TC and DSC are completely off, tire mismatch is the only reason I can think of for any traction lights to still come up.
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05-22-2015, 11:27 AM	#32
Jeff@TopGearSolutions 3482 Rep 79,210 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Log the vehicle and see how it looks.
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05-22-2015, 11:49 AM	#34
Sambonjo Private First Class 20 Rep 115 Posts Drives: 2011 E90 335 Xdrive 6MT Join Date: Jan 2015 Location: Calgary iTrader: (0) Garage List 2011 BMW 335 Xdrive [0.00]	You are fine then. Basically the rolling diameter of all 4 tires needs to be within 1% of each other. If you look at tire size calculators, a 245 front and a 255 rear will not be within 1%. This means there are only a few staggered setups that work on xDrive. I don't know all the technical aspects of it, but if the tires are outside the 1% range, the xDrive system doesn't really know what to do.
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05-22-2015, 04:20 PM	#40
jippii ensio Major 72 Rep 1,432 Posts Drives: 335i Join Date: Feb 2009 Location: On the road iTrader: (0)	1. Get proper sticky tires 2. Log log log
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05-22-2015, 05:49 PM	#41
Fundguy1 Major General 2051 Rep 8,339 Posts Drives: 335 e93 Join Date: Aug 2014 Location: Orlando, fl iTrader: (0)	Yeah. Get 235 front 275 rear Michelin Pilot Super Sports, non run flats or stickier.
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05-23-2015, 12:34 AM	#42
boo5t3d Private First Class 10 Rep 186 Posts Drives: bmw 435 Join Date: Feb 2013 Location: toronto iTrader: (2)	U have a jb4? U sure it's just not the shift light going off? Hazards blinking is the shift light.
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05-23-2015, 06:26 PM	#43
marcvtec Banned 414 Rep 2,696 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	He's running a square setup rim tire combo for all season, clearly. Get staggered rims tires as stated above min. 265 rear, 275 even better. He's basically racing on a winter tire combo from tire rack, LOL. Geeez.
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