I got the car dynotuned at Brenspeed!

Well today was the big day I got my car dyno tuned at Brenspeed so I can finally spray the N20. First was the NA runs. With all the mods in the sig I was expecting 330 to 340 rwhp bases off what I've read other people have gotten with similar mods.

My number was 323 rwhp. I was a little disappointed. I thought 330 rwhp was a shoe-in. I guess not.

Next was the N20 runs. It took several hours and changing the fuel jet (Went from 23 to 33 because the car wasn't getting enough fuel for the N20) to finally get a number of 440 rwhp and 501 rwtq. But there is one small catch. The A/F ratio starts at 16 and goes down to below 12 by the time the motor reaches 6000 rpm's.

So I was told I probably shouldn't spray any N20 at all if I want my motor to live. So I paid $600 for an NA tune that I already had and drove 3.5 hours to get it.

Not a good day.

Are you out of pump? Or did they give up and send you on your way?

01yellerCobra said:

Are you out of pump? Or did they give up and send you on your way?

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They don't know for sure. They said it could be that my pump is "tired" since the car has 70K miles on it but they can't be sure if it's the pump or something with my nitrous kit.

I bought the kit used from a member here and it's kind of a Frankenstein setup. It has a ZEX bottle, ZEX pressure gauge, NOS bottle heater, NOS window switch, Nitrous outlet plate setup, Induction Solutions solenoids and Induction Solutions purge. The kit hits but they can't get the fuel right to make it safe.

So in essence they gave up and sent me on my way but they sold me an upgraded fuel pump for $170 and said I can come back after I have installed it and pay them $200 more for which they'll make up to 3 pulls to see if that helped.

Of course if it didn't fix the situation then I'm out another $370 and 3.5 hour trip one way.

I would think monitoring the pump's duty cycle would have let the tuner know for sure...

Wow, that's a sad tale.

RocketcarX said:

I would think monitoring the pump's duty cycle would have let the tuner know for sure...

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That's what I said to the tuner. But apparently that's not part of what they do on a dyno tune. So they left it at speculation.

I have one recommendation. Get in touch with Lito and he will get you straightened out. They just ripped you off, for doing basically nothing.

Not viewing the fuel pump duty cycle on a dyno tune?
Not knowing when the pump is actually maxed vs guessing? Horse shit

It's literally a pid to view. Not rocket science to figure it out


Agreed. Lito will get shit done

stkjock said:

Wow, that's a sad tale.

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Yeah but I blame myself. I never should have tried to save a buck on the nitrous setup. I should have bought a brand new kit from either NX, Nitrous Outlet or ZEX. Had I done that then I would be very confident right now that a fuel pump would fix the problem and get me spraying.

As it is now I'm seriously contemplating buying the ZEX kit without a bottle for $455 and just installing that along with the fuel pump upgrade I already bought before I go back to Brenspeed.

I just hate to do that because that means ditching the plate for a nozzle setup.

darrens07gt said:

That's what I said to the tuner. But apparently that's not part of what they do on a dyno tune. So they left it at speculation.

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SMH! That's crazy. FP and injector DC are a must to be monitored.

darrens07gt said:

Yeah but I blame myself. I never should have tried to save a buck on the nitrous setup. I should have bought a brand new kit from either NX, Nitrous Outlet or ZEX. Had I done that then I would be very confident right now that a fuel pump would fix the problem and get me spraying.

As it is now I'm seriously contemplating buying the ZEX kit without a bottle for $455 and just installing that along with the fuel pump upgrade I already bought before I go back to Brenspeed.

I just hate to do that because that means ditching the plate for a nozzle setup.

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I'd never go back after what went down.

retfr8flyr said:

I have one recommendation. Get in touch with Lito and he will get you straightened out. They just ripped you off, for doing basically nothing.

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I know Lito's the man when it comes to tuning. But I can't risk an email tune for this when I already know a problem exists that is probably hardware related.

Don't get me wrong guys. I am not hating on Brenspeed here. They spent a lot of hours on my car today and did everything they could think of including giving me a 33 fuel jet out of their stock of ZEX parts. I was there from 8 am till 1 pm and they had my car on the dyno almost that entire time.

RocketcarX said:

I would think monitoring the pump's duty cycle would have let the tuner know for sure...

Click to expand...

stkjock said:

Wow, that's a sad tale.

Click to expand...

darrens07gt said:

That's what I said to the tuner. But apparently that's not part of what they do on a dyno tune. So they left it at speculation.

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retfr8flyr said:

I have one recommendation. Get in touch with Lito and he will get you straightened out. They just ripped you off, for doing basically nothing.

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I don't even know what to say, I just feel like a face to palm emoji is in order... If what you say is true, then Brenspeed needs to step up there game.

I really never hear anything bad about Brenspeed!!!! my tuner first comment while first pull of tuning was my car was out of pump. They installed a boost a bump and continued tuning. If true about Brenspeed i call the scam artist. just sellign you a pump without verifying that was the issue is crap. did they offer to install the pump for you?

v6tungsten said:

did they offer to install the pump for you?

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No. They gave me nitrous tune on my tuner but as discussed it's worthless with the A/F ratio so messed up. But if you asked them right now I'm sure they would say they feel they gave me my moneys worth because I left with an NA and N20 tune loaded on my SXT X4 tuner.

They offered me three pulls at a later date for $200. But that's a standard price so it's not like a deal or anything. My problem is there just aren't that many shops close to Illinois that tune 3V mustangs on a dyno. I thought Brenspeed in Indiana was a real smart move but you guys are making re-consider that assessment.

I edited my signature to be more accurate. Now It's a Nitrous Outlet 100 shot Appearance Mod

I almost forgot the best part. As I was settling up to the tune of $780, they handed me not only my dyno sheet but the dyno sheets of four other people who all had good working setups and nice A/F ratios.

So I'm sitting here right now with five dynos in front of me only one of which is mine. I know he was just showing me them as a comparison to say this is what it should look like and this is what yours looks like but still.

It kind of feels like putting salt in an open wound.

That's a bullshit move on their part. Logging duty cycle is standard practice on tuning any returnless car. Your kit isn't the issue. My buddy and I installed a nitrous kit out of fox body on his 07 Charger. It works well enough he gave a Whippled Cobra a run for his money.

Personally I would learn how to datalog pretty quick. Then either post it here for others to see or send it to Lito. Then go from there. I'd check the part number on the pump before installing it to make sure they didn't just sell you a stock pump.

Hmmmmm...sounds familiar to my experience after spending thousands with them. Date has changed but the story is pretty much still the same. They call it a custom tune but its really a slightly massaged canned tune they have stored on a server that best fits your application. They do little more after that. I ended up going local to get drive ability and idle to work properly on my 2005 after spending over $12000 with "Brand B". Oh and the local tuner found 30 more RWHP and 20 more RWT as said there was safely more but told him that was good. Never wasted another dollar with "Brand B" after that.

Sorry for your misfortune. I suggest finding remote tuner you are comfortable with or taking the car to a local tuner with a good reputation. Chalk this up as lesson learned.

redfirepearlgt said:

Hmmmmm...sounds familiar to my experience after spending thousands with them. Date has changed but the story is pretty much still the same. They call it a custom tune but its really a slightly massaged canned tune they have stored on a server that best fits your application. They do little more after that. I ended up going local to get drive ability and idle to work properly on my 2005 after spending over $12000 with "Brand B". Oh and the local tuner found 30 more RWHP and 20 more RWT as said there was safely more but told him that was good. Never wasted another dollar with "Brand B" after that.

Sorry for your misfortune. I suggest finding remote tuner you are comfortable with or taking the car to a local tuner with a good reputation. Chalk this up as lesson learned.

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What part of the country are you in? Would you mind PMing me which local tuner you went to?

My tuner also refused to log FP & injector duty cycles saying some cars will not let him see the values. Me not knowing any better, went along with it. My car also bucks and backfires at part throttle like it's running on broken COPs. I double checked everything mechanically and found nothing wrong. When I asked the tuner about it, he said it's the nature of the hot rod cams.

I don't mean to derail your thread OP, but I'm just mentioning this because duty cycles were brought up.

I don't get how these people don't have access to Inj and FP DC. What are they tuning the car with? An abacus?