American Racing Headers and Lund tune

[Voodooo]

To be fair Lund never had the same modifications, and we have at least one report of Voodoos car running lean on the generic tune before fuel was added to accommodate the ARH tubes.

I never had a single DTC. With or without Lund tune. I kept this silence enough so I'll spill the beans. When I ordered my GT350 tune for long tube and catless through beefcake, he never......
1) told Lund I had a gt350
2) told Lund I had long tubes
3) told Lund I was catless.

When I contacted beefcake while at Watson months ago he was rude and short and insulted the guys at Watson.

When I contacted John not (John Lund) at Lund when I got home that same day, he was helpful and had John Lund Sr call me right away. At first Sr was short and rude also because he thought the guys at Watson were judging him and they weren't. They actually said they know he's good. It wasn't until Sr looked at my order from beefcake that he seen all the mistakes in the order. That is why my car ran like shit on Lunds tune that day at Watson. But I will say this. Since I never even tried E85 and only dynoed on 93, data logging sucks. I strictly run Sunoco 260 GT now. I'm not convinced the flex fuel tunes are that good for this car yet, and as little time as I have to even drive my car now because of my work load E85 isn't right for me.

But yes my car detonated BAD on the first Lund tune (not his fault) with that being said I still pulled 511 rwhp on his tune at 6000 rpm when detonation was noticed. I wish it wasn't a bad tune then because I'm sure on the tune and with 2250 rpm to go I'm sure I would of pulled 520rwhp on 93. Since then I have data logged it on 93 and just recently for 100 octane race fuel.

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[Johnb-5.0]

Those codes are related to the front O2 sensors. I believe he does not have cats, so if those codes are coming up, it's most likely either a bad sensor or a bad extension harness which is giving a false malfunction.

Don't run extensions on these cars. There is enough slack in the stock harness to connect directly to the sensor just by releasing the body side of the harness from it's clip on the top of the transmission bell housing.

There is NOT enough slack in the stock harness, use the supplied o2 extensions that came with the Kooks headers or splice wire in to o2 sensor.

 

[superman07]

I never had a single DTC. With or without Lund tune. I kept this silence enough so I'll spill the beans. When I ordered my GT350 tune for long tube and catless through beefcake, he never......
1) told Lund I had a gt350
2) told Lund I had long tubes
3) told Lund I was catless.

When I contacted beefcake while at Watson months ago he was rude and short and insulted the guys at Watson.

When I contacted John not (John Lund) at Lund when I got home that same day, he was helpful and had John Lund Sr call me right away. At first Sr was short and rude also because he thought the guys at Watson were judging him and they weren't. They actually said they know he's good. It wasn't until Sr looked at my order from beefcake that he seen all the mistakes in the order. That is why my car ran like shit on Lunds tune that day at Watson. But I will say this. Since I never even tried E85 and only dynoed on 93, data logging sucks. I strictly run Sunoco 260 GT now. I'm not convinced the flex fuel tunes are that good for this car yet, and as little time as I have to even drive my car now because of my work load E85 isn't right for me.

But yes my car detonated BAD on the first Lund tune (not his fault) with that being said I still pulled 511 rwhp on his tune at 6000 rpm when detonation was noticed. I wish it wasn't a bad tune then because I'm sure on the tune and with 2250 rpm to go I'm sure I would of pulled 520rwhp on 93. Since then I have data logged it on 93 and just recently for 100 octane race fuel.

have you been updating the tune with supplied revisions?

How is the butt dyno?

 

[Derek@Lethal]

There is NOT enough slack in the stock harness, use the supplied o2 extensions that came with the Kooks headers or splice wire in to o2 sensor.

There has to be, we don't use extensions on our GT350 or on our GT. You have to remove the harness from the retaining clip at the top of the bell housing.

 

[Johnb-5.0]

There has to be, we don't use extensions on our GT350 or on our GT. You have to remove the harness from the retaining clip at the top of the bell housing.

Done that... its still about 2 inches too short.

 

[Voodooo]

have you been updating the tune with supplied revisions?

How is the butt dyno?

No updates. I'm pretty close to just ditching Lunds tune period. Since I don't run E85 I'll more then likely have Watson tune it at some point. Data logging and email tunes suck in my opinion.

 

[65sohc]

Done that... its still about 2 inches too short.

Aren't you guys comparing Kooks to ARH? Maybe Kooks are farther away.

 

[65sohc]

There are several nGauge O2 sensor parameters that can be monitored to tell if the sensor is operating normally.

 

[Johnb-5.0]

Aren't you guys comparing Kooks to ARH? Maybe Kooks are farther away.

I think the base Gt350's have a different wiring harness then the rest.

 

[superman07]

any updates?

 

[Johnb-5.0]

any updates?

After weeks chasing may tail and not getting anywhere I went back to the 93 tune. The car now runs as it should with no issues.

 

[jonesd]

After weeks chasing may tail and not getting anywhere I went back to the 93 tune. The car now runs as it should with no issues.

Do you by chance have an exhaust video of your kooks paired with the magnaflow?

 

[Johnb-5.0]

Do you by chance have an exhaust video of your kooks paired with the magnaflow?[/QUOTE
NO not right now.....but will say it sounds pretty good.

 

[superman07]

that sucks, e85 gives such a low end boost when its running properly. Although mine is still a bit inconsistent. current tank reads 62 percent ethanol and its running strong. I had to fill up with 93 a few days ago, dropped to 20 percentish and felt the lose of torque pretty hard.

 

[altjx]

Not meaning to revive an old thread but good lord I'm excited. Just dropped my car off for them to install the entire ARH system + MGW shifter + Lund tune today. Hoping to have it back by tomorrow evening.

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