Race Tracking Your Supra - Information exchange

[Todday1]

No it us not stock but no jb4 tuner or additional boost. So has a catless down pipe, armytrix exhausts, cold air intake and charge pipe. Plug gap a. 20 and am running 30% ethonol. Oh forgot vargas oil cap breather(lol) That is it. And based on other cars etc I am fairly confidant. It us not way way off. I have had it done a few times on two different NASA Dyno. and they are all in that range.

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[razorlab]

No it us not stock but no jb4 tuner or additional boost. So has a catless down pipe, armytrix exhausts, cold air intake and charge pipe. Plug gap a. 20 and am running 30% ethonol. Oh forgot vargas oil cap breather(lol) That is it. And based on other cars etc I am fairly confidant. It us not way way off. I have had it done a few times on two different NASA Dyno. and they are all in that range.

So the ECU is tuned? I'm a little confused by your reply.

 

[Evolution]

So the ECU is tuned? I'm a little confused by your reply.

That is what I am reading. Tuned but did not up the boost.

 

[razorlab]

That is what I am reading. Tuned but did not up the boost.

That would make more sense. Just those bolt ons and running E30 on the stock ECU calibration wouldn't gain 40-50whp. The oem ECU is load/torque based so even with higher airflow and such, there will be a cap on gains. The E30 would help ignition timing being pulled but that wouldn't magically give a ton of power unless the car was knocking all over the place on pump gas.

Stock 21's average about 380whp on dynojets. There are a ton of charts out there.

 

[Todday1]

No no tuning. Stock. I know there could be a little risk on 30% ethanol but from all my race buddies and little bit of reading up it has the high pressure fuel pump with the new B58 and can handle. No lean codes etc.

Plus is cheaper Race gas than mixing 100 oct. Runs cooler etc. I do have all cfs radiators as well on the cooling front.
I gave been running it for quite a while and pulled plugs etc. so all looks good.

 

[Evolution]

That would make more sense. Just those bolt ons and running E30 on the stock ECU calibration wouldn't gain 40-50whp. The oem ECU is load/torque based so even with higher airflow and such, there will be a cap on gains. The E30 would help ignition timing being pulled but that wouldn't magically give a ton of power unless the car was knocking all over the place on pump gas.

Stock 21's average about 380whp on dynojets. There are a ton of charts out there.

Trust me, I was thinking the same thing. I could see 400whp but not much more than that. I am right by saying once you raise the load/torque base, its going to raise the boost to try to hit the higher targets?

 

[razorlab]

No no tuning. Stock. I know there could be a little risk on 30% ethanol but from all my race buddies and little bit of reading up it has the high pressure fuel pump with the new B58 and can handle. No lean codes etc.

Totally get the ethanol strategy. I actually ran E20 the last couple events with stock tune. The ECU is fully capable of running that stock with no issues.

I still will stand by those dynos being off. Either that or you have a factory tuned Supra.

 

[Todday1]

Yes I think razor lab is spot on and that is the result. So may not be for everyone. I would caution again getting to that 20pi setting you will blow the turbo if you run it hard and as much as I do. So look fir other stuff and back it if and you will be much safer in terms of longevity.

 

[razorlab]

I am right by saying once you raise the load/torque base, its going to raise the boost to try to hit the higher targets?

Yes, the ECU goes by target torque/load. Boost going up/down is just a by-product.

No matter the calibration, stock or tuned, the boost will be different day to day, depending on ambient etc. However, the torque/load targets will be the same.

Let's say you are targeting 500 Nm at 4,000rpm, which is exactly what the stock calibration is doing. In the cold morning air, you might hit that 500 Nm with 14psi. Later in the day when it's 20F warmer, it might need 16psi to hit that same 500 Nm target. The power output will be the same.

 

[Todday1]

Well personally I would love to get it tt4 as most of the cars in my group are also full on race cars on slicks. Which I have not gone to. So is difficult to place in top 3. But again we are all out for the same plastic trophy so is just good fun. Not professional race group. Maybe later with a full race car. You all can believe the Dyno or not. I do think having driven many of them that they are all not exactly equal right out if the box. Mine is an A91 limited edition so not sure that that really matters but some stock 3.0 do feel a little different. So Is what it is. My advice is to Spend your money on tires brakes and suspension and driving instruction if you want to go faster. Not chasing 20 -30 extra hP. As it has plenty to go around.

 

[razorlab]

Mine is an A91 limited edition so not sure that that really matters but some stock 3.0 do feel a little different.

It doesn't. Same calibration as others. Do you know what gear you have dynoed in?

The 2020's are different as they are about 40-50whp down on 21+ from 5,500rpm on. That is my drivers excuse when 21's are faster than me on track.

 

[Todday1]

So you just need to get faster corner exit speed and make up for hp to get a run on them?go a little deeper straighten out Line across the apex and get on full gas before apex.! Hence brakes tires and suspension ! Easy to say hard to do and get car set up so it will do this as they are tail happy with all that Hp. and can not always get on full throttle when others do. I am actually working on this aspect to try and shave those tenths.

 

[Todday1]

If you guys are interested in seeing howthe car has been performing in TT. Just look at the NASA az region TT results. You will see it there. And can give you a relative comparison to the other groups

 

[AHP]

Here us the Dyno sheet. I do not think I thet. even look at crank hp on a NASA Dyno?

Arizona, right? The numbers are a bit inflated due to the Correction Factor applied. Modern turbo cars can largely overcome the density altitude handicap because they're commanding a TQ value.

 

[ABQautoxer]

PHX is not high altitude, 1300ft which doesn't do much. When I go down there my cars always feel super powerful compared to my 5700ft.

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