Juanca

iTrader: (5)

OK, some news for all of you, I have an appointment tomorrow morning for a dyno session. After the dyno is done I'll be heading to Moroso and get some 1/4 mile times. If everything goes as planned I should be shipping my ECU to Andy next week. Does anybody know how to remove the ECU from the car? Is the TCU the same box as the ECU? If not, how do I remove it?

Thanks.

caymandive

iTrader: (2)

Lobuxracer has some instructions he can send you, but as he said to me, you might want to look into getting a used ECM from a totaled IS-F to work with before committing the one with your VIN already on it. This way you can remove their unit and replace your good one so you still have a running car.

PS..Probably not feasible since I've yet to see a totaled IS-F, but who knows.

MHP

You'll get exactly what you're asking for. Quicker/Firmer WOT shifts and buttery smooth part throttle shifts that are still significantly quicker than stock.

We won't touch snow mode so no worries.

Juanca

iTrader: (5)

Andy,

So the ECU tuning will work only when switching to Sport mode, right? The same thing with the TCU tuning, only available when switching to manual mode? Otherwise the car will be like any other Lexus?

Stormforge

you have PM!

Mr Johnson

Exactly the same question I have based on your response. I'm looking for your tune to only be active when sport mode is on. If not sport mode then does the tune "revert" to the standard Lexus tune?

It is OK to say: "No. our tune is always active" but I'm just wondering if you can make it conditional.

oztiks

I'm definitely low on the post-totem-pole but if for some reason Juanca falls through, I nominate myself next!

I don't have any runs from Moroso, but I live less than 20 minutes from it. I currently have the SRT Intake + PiggyBack ECU which are coming off. I have dyno access (dynojet) in orlando....

MHP

Sorry if I wasn't clear before. Your car will see the most gains as in the quickest/firmest shifts and run its best times/traps in manual mode, correct. Snow mode will remain untouched. Every other mode will be moderately affected, as in shifts will be quicker but as smooth or smoother than stock.
We pride ourselves on our ability to provide complete driveline tuning on exotic and high end luxury cars/SUVs. In no way shape or form would we compromise part throttle drivability for ultimate WOT performance--unless specifically told to do so.
No worries, you're going to love the tuning!

Also, FYI, we're officially in the process of becoming site sponsors and should be good to go by next Wed at latest. Thanks for the site staff/admins and IB for allowing us to get this far in the meantime.

stick

When the baseline dynos are done, should two runs be logged: one in normal "drive" and the other in manual mode? If manual mode will have the most gains (I'm guessing you mean faster shifts and hp/tq gains), I would like to see what they are before and after, but also compared to normal "drive" mode.

MHP

I don't see there being any difference on the dyno (at the track yes) but in gear there shouldn't be an issue unless manual mode allows the car to rev higher?

I do think that 3 pulls should be made before/after.

LexISguy

Is the tune going to eliminate the speed governer and raise the rev limit in addition to some more horsepower?

Juanca

iTrader: (5)

I just got my car dynoed, 349RWHP/345ft-lbs:



The guy that ran the dyno told me that all those spikes that we see on the graph, even when smoothing at 5, could be timing... I don't know.

I think I could get a couple of more HP if I'd let the car cool down before hitting the dyno, I drove fast not to loose my appointment and the car went straight to the first pull.

I should be going to Moroso in a couple of hours and get 1/4 mile times.

MHP

Yes to all 3, your cars will have a significant amount more low end and midrange, and part throttle wise it will feel like a different car--just as with WOT.
Juanca is going to be a very happy man in the within the next 2 weeks.

MHP

Excellent!

Thank you for getting the testing done so quickly Juan. You can see the ECU pulling timing upstairs, at this point I'm quite optimistic about the HP/TQ gains themselves.

Can you please have the dyno shop email me the raw winpep file (andrew@modernhorsepower.com). I'd like to put rpm on the X axis and be able to put pre/post numbers on the same graph to show exact gains per rpm.

Thanks, and good luck at the track!

Andy

MHP

Two questions, Juanca what gear was the dyno done in 5th? What gear is 1:1 in a 8A, guessing 5th?

Thanks
Andy