need help paid alot for 328 whp kenne bell tune.

[oldvsnew]

need some advice. new to tuning bought hp and found it to be really intimidating. so to save time for my project i took it to a tuner and got some dissappointing numbers. so here is what i have.
stock bottom end ls1 with 317 heads. 228r cam kit from texas speed. 2.6 kenne bell with 60's for fuel. it is a return style setup with all aeromotive stuff. 4l60 blah blah blah. ive got the correct 2 bar map. Now heres the problem the car only put down 328 whp. is this correct? iats were in the 140's which seems to be normal for these heat pumps. timing is at 17.5. when i got the car back i realized that since he tuned with efi live i cant even access my pcm file. the car runs rough and surges. have i just wasted a ton of money and need to start over?

[Ben Charles]

need your tune and logs if you have em

[oldvsnew]

i dont have anything. when i try to read the pcm it says vin/os pair. emailed support and they cant do anything with it. emailed the tuner and he said i wont be able to access it because it was tuned and saved with efi live. thanks for the response by the way.

[mecanicman]

You have 3 options. Go back to your tuner with your issues and see if you can reach an agreement(probably not if he let you leave like this, but worth a shot).

Start doing a lot of reading, get an understanding of the process, get a wideband, flash back to stock and start the process on your own.

Go to a known experienced tuner and have it done right. There are a few on here that will do it remotely, look at some options.

[oldvsnew]

i hate an honest person. thats what i figured. am i crazy for expecting more power out of that setup? its in a prostreet 64 chevy 11 by the way ill try to get some pics up neat looking set up. I have the greg banish book advanced tuning just afraid of hurtin the motor doin the trial and error thing. should i try the bin repository and maybe find something similar to start with?

[mecanicman]

Without knowing more about the combo, cant say for certain, but I would expect more hp. Just remember a dyno is a tool, and not all are created equal. If it shows you a gain from where you started to where you finish it did the job it was ment to. You could go down the street to another dyno and make 375hp with the same tune.

I am not sure hpt will allow you to flash over the efi live tune even if you went to the repository and found one. I would suggest having your tuner put the stock file back if possible, or take it to gm with tech 2(might be little interesting).

If this is your daily driver, Pay known tuner to do it. If is not daily driven, and you are willing to take the time, you can do it safely with some common sense and a lot of reading. Just take it slow.

[edcmat-l1]

Sorry to hear of your bad luck with the current tuner. I can offer a few options. First, I've tuned several KB cars, including the first 2 KB C5s on the east coast (this is going back a few years).

Now, we can do a couple different things. I can send you a good starter file, 2 bar SD for HPT, or you can send me your PCM and I suck out the EFIlive tune and convert it to HPT, which probably wouldn't much matter being as it made what it made.

Let me know, I can get you setup to start tuning yourself. All you need is HPT and a wideband.

[oldvsnew]

no def not a daily driver. i have hpt pro and an aem wideband although not linked to hpt. im def interested in a starter tune if i will be able to save over the top of this one. if not im not opposed to picking up another pcm and at least having this pcm to put around the streets with when i get frustrated! ill pm you edcmat-l1

[Anthony@MDS]

I just did an LS1 swap in a 4x4 truck here. LS1, same cam as you with the eaton magnacharger kit (non twin screw, and smaller) your blower is much better than this, and it made 425hp and 500 ft/lbs through the 4x4 and 32" tires. It did it at only 17* timing and 9 lbs of boost. AFR was around 11.6

I was having some constant false KR that was pulling 4-5* out of the tune no matter where timing was. Even after desensitizing the knock sensors globally by over 75% I still got the same KR at wot. I even added fuel down to 11.0 and pulled timing by that 5* still pulled timing. I set it to 8* timing, still pulled 5 and fell on it's face. I ended up zero'ing out the table for KR ability in PE. Not the best thing to do, but I'm getting a solid 17* now. It's plenty conservative and theres plenty of fuel in there so I'm not worried about it. Oh and my IATs were 150+ during most of the pulls

[blownbluez06]

your blower is much better than this,

That's an assumption based on all KB's propaganda. It's not "much better" than a Magnuson. I made 520RWHP with a baby cam in a 5.7l and a Maggie MP112. I tuned a maxed out KB 2.8 on a 408 with ETP heads and the best of everything and got 660. He took it to LMR for a retune hoping for the 900+ he was promised and only got 22 more. That was due to lower altitude, better weather and a more aggressive tune.

I'll agree it should do more than the 3xxRWHP.

It also hugely depends on how the inlet is configured on the KB.

[Anthony@MDS]

That's an assumption based on all KB's propaganda. It's not "much better" than a Magnuson. I made 520RWHP with a baby cam in a 5.7l and a Maggie MP112. I tuned a maxed out KB 2.8 on a 408 with ETP heads and the best of everything and got 660. He took it to LMR for a retune hoping for the 900+ he was promised and only got 22 more. That was due to lower altitude, better weather and a more aggressive tune.

I'll agree it should do more than the 3xxRWHP.

It also hugely depends on how the inlet is configured on the KB.

That comment was based strictly on my ford experiance with their blowers over the eaton here at the shop. We gain 50+ hp at the same boost level/timing/afr justupgrading the blower itself. With the 30* average cooler iats, im comfortable putting another degree and taking a little fuel out. Weve gained 75+ with the tune and blower change at the same boost levels.

[blownbluez06]

That comment was based strictly on my ford experiance with their blowers over the eaton here at the shop. We gain 50+ hp at the same boost level/timing/afr justupgrading the blower itself. With the 30* average cooler iats, im comfortable putting another degree and taking a little fuel out. Weve gained 75+ with the tune and blower change at the same boost levels.

My comments are based on some bad experiences with them on C5 Vettes and that's the reason I qualified my statement with the intake comment. I've seen them do better on other cars with less restricted intakes.