13T Tuning -- Dyno Results Soon - 3000GT/Stealth International Message Center

AdamVR4 · 02-12-2005, 02:43 AM

Worked on CANENAC's bad ass Spyder today/tonight... Fixed a lot of potential boost leaks including the throttle body o-rings and started tuning... Quite literally starting from nothing. (I'm actually posting this from the Holiday Inn that Keith is staying at).

Got it fairly dialed in ... O2's are staying between .92 and .96v at WOT in 3rd and knock..... Well, the knock counts have been a bit strange. CANENAC has 3SX Polyurethane motormounts (all 4)... As soon as he mashes the gas on the highway, he gets up to 8 counts of knock... It tapers down to 0 and in the higher RPM's there's no knock.

I suppose potential causes of the false (at least what I would conclude is false) knock would include the driveshaft (old carrier bearings?)... But I don't see how it could be bad enough to produce this.

We're running around 13 psi right now, and I have a feeling at the knock we experience at 15 psi is caused by oil leaking past the valve stem seals.

It's all good though... Race gas rules

... We'll play around with it some more tomorrow and he's going to give me an hour to fine tune it on the dyno and really stretch these turbos out. Should be sweet. Of course, we'll keep you updated.

Steve3kgt · 02-12-2005, 08:21 AM

I recently installed 3sx poly mounts as well and when I mash the gas I somtimes see some knock up to ~10. I don't think it's the tune... and it was way worse before the 3sx mounts.

Some people have told me that old carrier bearings / driveshaft can lead to false knock, I've got a 1 piece PST CFDS coming to me so some time next week I'll be albe to let you know if replacing my stock driveshaft eliminated my knock counts.

I'm interested in how much power you guys can squeeze out of the 13T's... what are you using for air / fuel tuning?

mjannusch · 02-12-2005, 08:32 AM

If he's got an aftermarket downpipe on the Spyder, they sometimes bang against the firewall. I think the firewall frame is a bit thicker on the Spyder, so less clearance. That could be the source of your knock. My downpipe pretty much sits against the firewall, even with the poly mounts.

Wombat · 02-12-2005, 10:27 AM

Also very interested to see some dyno numbers from the 13Ts and a good tune. Contemplating whether to do the 13T upgrade or hold out for the 19T compressor wheels

I've got a 13T WRX turbo just sitting here screaming 'SEND ME TO ROB BECK'

RobBeck · 02-12-2005, 12:44 PM

Cool man hopefully you get the kinks worked out. Think his transient knock is fuel related? Perhaps FPR is reacting slowly....

VR4-Case · 02-12-2005, 12:52 PM

I cant wait to hear how it goes Adam since I am still planning on going with 13Ts through Rob when you get that next batch going. Although my 9Bs didnt let me down last night as I took a 13C turboed VR4 about 4 different times (Adam- I showed Dave and Javier what the DSM SMIC were about last night)

EricVR4 · 02-12-2005, 01:10 PM

We might have been able to see some track results today too....if Canenac was gonna run, but the rain ruined the fun

I missed out last night too cause of work, oh well.....I'm still gonna be at the dyno with Camera in hand

Pakg · 02-12-2005, 02:03 PM

Sweet I'm really lookin forward to Keith's results, it'll help me deicde on if I'm gonna go 13T route. Keep us posted!

btw, his spyder is sexy as hell.

Carnage VR4 · 02-12-2005, 02:17 PM

Good to hear your working on a car equipped with 13Ts. Your opinion on these turbos could be the decision between me following through with 13T set-up and going another route. Definatley keep us updated.

-Matt

Vital Velocity · 02-12-2005, 02:50 PM

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02-12-2005, 02:43 AM	#1 (permalink)
AdamVR4 TEXAS!! FIGHT!! Join Date: Jul 2002 Location: University of Texas Drives: NoCar XCase Test Car Trader Rating: (22)	13T Tuning -- Dyno Results Soon Worked on CANENAC's bad ass Spyder today/tonight... Fixed a lot of potential boost leaks including the throttle body o-rings and started tuning... Quite literally starting from nothing. (I'm actually posting this from the Holiday Inn that Keith is staying at). Got it fairly dialed in ... O2's are staying between .92 and .96v at WOT in 3rd and knock..... Well, the knock counts have been a bit strange. CANENAC has 3SX Polyurethane motormounts (all 4)... As soon as he mashes the gas on the highway, he gets up to 8 counts of knock... It tapers down to 0 and in the higher RPM's there's no knock. I suppose potential causes of the false (at least what I would conclude is false) knock would include the driveshaft (old carrier bearings?)... But I don't see how it could be bad enough to produce this. We're running around 13 psi right now, and I have a feeling at the knock we experience at 15 psi is caused by oil leaking past the valve stem seals. It's all good though... Race gas rules ... We'll play around with it some more tomorrow and he's going to give me an hour to fine tune it on the dyno and really stretch these turbos out. Should be sweet. Of course, we'll keep you updated. __________________ PEARL WHITE '93 VR-4 // Under Construction. Looking forward to lighting up the drag radials E16G's: 10.573 @ 135.01 (Trevor owns me ) E16G's: 11.28 @ 124.7 (Pure pump gas ET record ) 14B's: 11.10 @ 127.3 (AWD 14B ET record. Take THAT, Trev! ) 9B's: 12.78 @ 107.1 Congrats to the current top 10 members!! DynamicRacing: US 3S Top 10 Fastest List

02-12-2005, 08:21 AM	#2 (permalink)
Steve3kgt Getrag Rebuilder Join Date: Aug 1999 Trader Rating: (18)	Re: 13T Tuning -- Dyno Results Soon I recently installed 3sx poly mounts as well and when I mash the gas I somtimes see some knock up to ~10. I don't think it's the tune... and it was way worse before the 3sx mounts. Some people have told me that old carrier bearings / driveshaft can lead to false knock, I've got a 1 piece PST CFDS coming to me so some time next week I'll be albe to let you know if replacing my stock driveshaft eliminated my knock counts. I'm interested in how much power you guys can squeeze out of the 13T's... what are you using for air / fuel tuning?

02-12-2005, 08:32 AM	#3 (permalink)
mjannusch Pro xfercase destroyer Join Date: Feb 2001 Location: Hudson, WI Drives: 2005 Toyota Prius Trader Rating: (20)	Re: 13T Tuning -- Dyno Results Soon If he's got an aftermarket downpipe on the Spyder, they sometimes bang against the firewall. I think the firewall frame is a bit thicker on the Spyder, so less clearance. That could be the source of your knock. My downpipe pretty much sits against the firewall, even with the poly mounts. __________________ -Matt '95 3000GT Spyder VR4 (11.838@117.56) '93 3000GT VR4 (Project for 2009) '91 3000GT VR4 (Only a shell of its former self)

02-12-2005, 10:27 AM	#4 (permalink)
Wombat Like a Rat out of Water Join Date: Jul 2002 Location: Central Jersey Drives: '91 VR-4 Trader Rating: (57)	Re: 13T Tuning -- Dyno Results Soon Also very interested to see some dyno numbers from the 13Ts and a good tune. Contemplating whether to do the 13T upgrade or hold out for the 19T compressor wheels I've got a 13T WRX turbo just sitting here screaming 'SEND ME TO ROB BECK' __________________ 1991 3000GT VR-4 - 13T, 550cc, E-manage, Walbro 255, AEM FPR 1991 3000GT VR-4 - These cars are addicting... 1991 3000GT SL - Spare parts/Test car

02-12-2005, 12:44 PM	#5 (permalink)
RobBeck POLYCHRONOPOULOS Join Date: May 2002 Location: St. Louis, MO Drives: On 1 Wheel Trader Rating: (228)	Re: 13T Tuning -- Dyno Results Soon Cool man hopefully you get the kinks worked out. Think his transient knock is fuel related? Perhaps FPR is reacting slowly....

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02-12-2005, 12:52 PM	#6 (permalink)
VR4-Case I <3 BoosTT Join Date: Mar 2004 Location: AUSTIN, TX Drives: 92 Fiji Blue VR4 Trader Rating: (6)	Re: 13T Tuning -- Dyno Results Soon I cant wait to hear how it goes Adam since I am still planning on going with 13Ts through Rob when you get that next batch going. Although my 9Bs didnt let me down last night as I took a 13C turboed VR4 about 4 different times (Adam- I showed Dave and Javier what the DSM SMIC were about last night) __________________ My 92 Fiji Blue VR4 is for sale, need to sell ASAP http://www.3si.org/forum/showthread.php?t=398828 This is how Chuck Norris gives driving lessons:

02-12-2005, 01:10 PM	#7 (permalink)
EricVR4 Since May 2002 Join Date: May 2002 Location: Houston, Texas Drives: 92 VR4/05 Accord Trader Rating: (25)	Re: 13T Tuning -- Dyno Results Soon We might have been able to see some track results today too....if Canenac was gonna run, but the rain ruined the fun I missed out last night too cause of work, oh well.....I'm still gonna be at the dyno with Camera in hand __________________ Sold 13Ts \| DSM SMICs \| LS1 maf/maft \| NBT OS/Spool \| + lots of others

02-12-2005, 02:03 PM	#8 (permalink)
Pakg Wants Afternoon Delight Join Date: Sep 2004 Location: Claremore,OK Drives: 92 VR4 Trader Rating: (1)	Re: 13T Tuning -- Dyno Results Soon Sweet I'm really lookin forward to Keith's results, it'll help me deicde on if I'm gonna go 13T route. Keep us posted! btw, his spyder is sexy as hell. __________________ 1992 Mitsubishi 3000GT VR4 ATR Catback Exhaust, ATR Downpipe, Gutted Cats, Alamo Y-Pipe, K&N Intake, EGR Block off, Vacuum Hose Reduction, Autometer Boost Gauge, MBC @ 14psi, XTD Stage III Clutch Kit, Fidanza Lightweight Flywheel, SS Clutch Lines, Greddy Type S BOV & Adapter, Datalogger, New Transfer Case, Carbon Fiber Driveshaft, 3rd Gen Lifters, New VSS, Kevlar Timing Belt & new Water Pump Waiting to Install: Greddy PRofec B-spec II, HKS Turbo Timer, Walbro 255lph Fuel Pump Soon to Be: Defi BF Boost,EGT,Oil Pressure Guages Upgrade Brake Pads,Rotors, SS Brake Lines And then some scary shit.

02-12-2005, 02:17 PM	#9 (permalink)
Carnage VR4 I Can't Make Up My Mind Join Date: Nov 2002 Location: MA Drives: VR-4 Trader Rating: (36)	Re: 13T Tuning -- Dyno Results Soon Good to hear your working on a car equipped with 13Ts. Your opinion on these turbos could be the decision between me following through with 13T set-up and going another route. Definatley keep us updated. -Matt __________________ \| Facebook \| AIM: Carnage VR4 \| E-Mail: Maximum_Carnage@comcast.net \| MySpace \| NE3S.org \| March 08 ROTM \| *MY SANDSTONE VR4 IS FOR SALE*

02-12-2005, 02:50 PM	#10 (permalink)
Vital Velocity Formerlly Ps933kgt Join Date: Jul 2001 Location: Tx Drives: 93 Vr4 / Blown Viper Trader Rating: (18)	Re: 13T Tuning -- Dyno Results Soon Subscribe..... __________________ 2002 Viper GTS- Intake and Exhaust Work