ISFer

iTrader: (2)

I hope you guys get some video of those runs....

C.

MHP

That's happening (likely on multiple cameras) as well.

kickhard

Andy this is just a thought about the intake Valve opening at 3600rpm. Is there any way for you to tune for that to open up sooner and of course add fuel and timing below that compensate and to get more power under the curve? Looking at the dyno graphs I think we are really missing out on that part of the tuning. The spreadsheet looks like a turbo car with the power coming in very late in the rpm(the last 1000rpm to 1500rpm)

I did read someone rigged it to open in the 2500rpm range but I think without specific tuning to compensate for it you really wont see any gains and could possibly see worse performance

Just a thought

Thanks again

D

stash84

ive been wondering the same thing but i recently read that Lexus didnt leave much unused power down low. Thats why Andy was only able to make it pull harder after 5000 rpms. But lets see what he has to say...

MHP

I'd like to see a comparison graph with the valve open the entire time vs closed the entire time. v2 will show more gains in the low/midrange, though still not as much as after 5200rpm--there's just not a ton left below that rpm point. I think we can hit double digit gains there though.

Results coming soon. I can't wait not just for Juan's v2 testing, but also the head to head shootout at HRP on the 24th.

Juanca

iTrader: (5)

Hey Andy, what I can do is have one of the following dyno pulls with the intake's second stage wide open. I'll make sure that there is plenty of cooling time between pulls, and the last one will be unplugging the intake's vacuum hose from the actuator. Also the pulls will be from down on the RPMs so we can see if there are power differences between factory spec intake against both intake stages open.

t0e

iTrader: (1)

After reading all 44 dam pages.... Geesh!

So whats up with the is350, do you have a TESTER already?

I would like to bump the rpm a bit add some more Top End HP/TQ, more throttle response beyond ETC/Pwr mode, aggressive A/F ratios, and so on ... I would also like to change the gearing logic up a bit, to be more aggressive in down shifting. So when I'm at the track, I can push the lower gears, without having to use the paddles.

Can you adjust the shift logic?

FPR1939

Juan,

What size and brand of DR are you running? I also assume you have mounted them on new wheels, what brand wheels have you mounted the DRs on?

Pat

anajri

MHP
hey just been keeping up with this post and must say excelent work, and everything look very promising and numbers are looking great.. But I still think that 4000 dollars for 20hp is a little steep. I dont want put a price on youre work but one can get the same results with the exhasut and the intake. Just for a thought, look what happend to the IS350 supercharger it cost about US$ 7,000.00 and only gave you 50hp.. only a hand full of people made the purchase... so well again just a point of view, no harm intended or disrespect to you or you're work.. keep up the good work. hopefully we can have an ISF in the high 11'S SOON..

Best regards
ALfredo

CrazyMPG

iTrader: (4)

Just wondering if you had an answer for this MHP?

MHP

Al,
Thanks.
First, I'd like to see some objective 3rd party before/after testing (like we've done) with the currently available intakes/exhausts on the market. The only data I've seen so far shows a basline pull of 333/327rw SAE which is 20rw lower than our stocker tested in Miami heat.
Second, intakes/exhaust don't deliver further driveline refinement, or the change the overall dynamic of the car, like our tuning does.
Third, I'll put our v2 tune (we'll get more out of midrange and should be able to attain 28rw gains at peak) against an intake/exhaust IS-F anytime. If anyone wants to run a tune only IS-F at HRP on the 24th with an intake/exhaust come out to the race.
Last, we don't price our tuning predominately on the gains we net (though it's a factor, it's not a huge one, some Ferrari' cals are only worth 15hp but cost $15k). We base them on how long it takes us to build and flash the cals, and they're all custom.
I'm sure you don't work for free, well, we don't either.
Even if we hit 30rw gains at peak, there will still be some that say it costs too much or it isn't worth it, those are the same people that don't have or won't have the tuning. Decide for yourself.

MHP

Catbacks don't effect the tune. If you had headers then yes it would require a tweak but you'll be good to go with a v2 cal.

passnu2

iTrader: (33)

you have email/PM...

Thanks!

MHP

Yes, we're waiting on HKS to send his controllers in. If you want less resistant downshifting yes we can deliver that via TCU tuning.

Thanks
Andy

LEXUSF

iTrader: (3)

when are you starting the full exhaust systems?