F/I Horsepower and Supporting Mods

Jap · May 18, 2012

292rwhp on current tune, made 310rwhp before without the fat mid range torque (I know what I prefer)
12 metric buckets of torque

Mods:
JapCo Cold Air Box
TRD Intake
APR 7th Inj
255lph Walbro pump
2.7" blower pulley, NST Crank Pulley
X-1
Hurricane long primary extractors
Twin 2.25" into Single 3" exhaust - with 3 mufflers

Shift Kit in the A750 auto
Shimmed LSD

Torspd · Jul 13, 2012

STS Rear mount. APR X-1, JE Pistons @ 9.5:1 , Pauter Rods, 12 psi. On 35" mud tires.

407 whp and 491 wtq

Gadget · Jul 13, 2012

sixstringdave said:
I finally found this from the other day. What i wanted to point out here is the dip in the Air/Fuel line on the chart. At around 4300 RPM you can see that it goes rich. Before this, we had leaned it out a bit. It was really dipping to somewhere like 10.8 and i was losing tons of power. Only getting to 228 to 2301-ish HP.

So we got it leaner a bit and the truck did better as you can see(241 WHP). But why is it still dipping around 4300? I was running out of time on the Dyno that day so we called it good. But i left wondering if we could have done better.

I am happy about it making power all the way to Redline. Makes me want to go the X-1 route to take the rev limiter to 6250. But i am still a bit unhappy about my Torque.

If you uncompress the dyno charts you will also see a dip in the power and torque graph.

Right around 3400 RPM the ECU command the VVTi to move and the ACIS Valve in the plenum to transition. It also command the throttle valve to shut slightly and then open back up. That is what is causing the dip in your AFR. There is a delay in reading the AFR because they are likely sampling at the tail pipe and it takes a while for that to move down the pipe and get read.

All completely normal.

G

scoutdeed69 · Jul 13, 2012

For everyones info that is from a mustage dyno! That was the slowest run of 3 runs i did....that they use for hoped up motorcycles...in North Charleston S.C.....it was pretty hot that day too. The guy finaly got my print outs done...but i won't get them until i come back to get a new dyno on the X...with the new kit installed! I can't wait to see what its got woohoo:rockon:

Rob....scouts out:rockon:

rexrunner · Jul 13, 2012

650 HP 600 tq. Ls1/t56 twin 58 mm 12 psi.

Stock 1gr. 7 psi Gt35r tubular manifolds fmic modded 440s 3inch dp full exhaust bla bla bla. Look it up.

redarkx · Jul 13, 2012

I think at this point rexrunner the truck becomes a supporting mod to that beast you have under the hood. L

rexrunner · Jul 14, 2012

^^ ha ha. That's funny. I wish I didn't have this addiction lol

cwatt · Jul 14, 2012

Anyone notice a problem here?

Toon714:
340hp and 377tq@ 6psi

Jap:
292-310hp @ ~10+psi (2.7" & NST O/D)

Toon714 · Jul 14, 2012

cwatt said:
Anyone notice a problem here?

Toon714:
340hp and 377tq@ 6psi

Jap:
292-310hp @ ~10+psi (2.7" & NST O/D)

hows there a problem?
turbo makes more power.....

Torspd · Jul 14, 2012

cwatt said:
Anyone notice a problem here?

Toon714:
340hp and 377tq@ 6psi

Jap:
292-310hp @ ~10+psi (2.7" & NST O/D)

I cannot remember exactly, but I think his dyno was on a mustang or dynamics brand. Thus, those read lower. Dyno dynamics brand usually read the lowest.

So to be equally compared, another member with supporting mods would need to use the same style dyno.

It should be stated from this point, to mention the type of dyno used as well. :top: if it isn't displayed on the graph.

Murderface · Jul 14, 2012

Plus I think he said the octane availability in Australia sucks balls

Workman3886 · Jul 14, 2012

Doesn't it have to do with the volume of air at that psi too?

rexrunner · Jul 14, 2012

Cfm not psi.

Bulldogger · Jul 14, 2012

Also depends on where your taking your boost reading from.

theduck911 · Jul 14, 2012

Great thread for people to see what needs to be done to reach certain power levels!

DOUBLEJTACOMA · Jul 14, 2012

Not much hp compared to everyone else on here, but a lot more than stock...I run URD's 2tr-fe supercharger kit. Running that kit plus Doug Thorley header, cat delete, magnaflow (catless) back. Looking to upgrade to smaller 80mm pulley (laugh it up) soon. I learn a lot from this site, I just wish there was a plethora of boosted 4cily guys out there, like there is for the 1gr. Some day maybe ;-)

cwatt · Jul 17, 2012

Murderface said:
Plus I think he said the octane availability in Australia sucks balls

Ah ball-sucking octane. Sounds like Canada. Finding 93 is like spotting Sasquatch - many will claim to have, but few will ever find it. And good luck with E85. HAH!

Murderface · Jul 17, 2012

Ya I just wanna do one more tank of E85 so I can do some data logs to compare between the E85 and 93 octane which about 80% of all pumps have. We have 87-93. Funny we have 92 octane but only at Wawa food stores

cwatt · Jul 18, 2012

Toon714 said:
hows there a problem?
turbo makes more power.....

Does anyone measure intake temp? I would be curious to see exactly how much cooler turbos/URD units are...

After all, pressurized air is pressurized air - only difference can be temp.

Torspd · Jul 18, 2012

Through either a datalog, or real time monitoring, us turbo and URD guys can see the charge air temps. TRD guys, unless they install a thermostat into the cover post rotors, can only see intake temps pre-boost.

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