360+ wheel lb-ft 320+ whp *STOCK* Turbo - Page 3

esemes · 09-14-2005, 02:15 PM

more on the top mount?

What do ya need to know? It's a Turbo xs 4.5 in.
The guy is probably scared to answer you by now.
How bout ya just back off of him.

edited for language. -mgmt

**Siegel Racing** · 09-14-2005, 03:41 PM

Stock injectors and 93 octane from down the street. Which now that you mention didn't seem to want to run as much timing as whatever gas the car came in with.

Really, total parts were Injen CAI, TXS (WRX) TMIC (I think they only have the one, and this one used the stock STi Y-pipe under it), Random Tech DUAL catted TBE, EBCS, Walboro, and Ecutek. The engine bay was HOT when we did it and we were hand spraying the TMIC with tap water.

This customer road races and this really would be a road race-able setup with a splash of good gas. 18.8 psi peak, tapering to 16.1, minimum timing was near 17 with 29 or so at the top...

This is a STRANGELY high car, but nothing unnatural was used to make these numbers. Like I said, the car ran better on the street than on the dyno.

SS

**Siegel Racing** · 09-14-2005, 03:50 PM

Wolf, you are correct, I tried a little more boost to get the 365.5 wlb-ft 328 whp...

SS

esemes · 09-14-2005, 04:04 PM

Quote:

Originally Posted by Subaru of Gwinnett

.................Injen CAI, TXS (WRX) TMIC (I think they only have the one, and this one used the stock STi Y-pipe under it),................

this is waht i was wondering. i couldnt find an STi-specific i/c.

the cai is also interesting. perhaps it is a bigger player than i was thinking. (itis the type that snakes inside the fenderwell and drops down to a k/n pod filter?)

thnx

ES

**Siegel Racing** · 09-14-2005, 04:25 PM

18.8 peak to 16.1 at 7k

donmei · 09-15-2005, 06:31 PM

Scott,
What was the duty cycle on the stock injectors at max hp? Were they close to 100%?

Don

**Siegel Racing** · 09-16-2005, 08:40 AM

95.96% is the highest that I am finding. That's with the DeltaDash logger, which has been shown to add fuel pretty well up to 118-120%...

It appears that they have "100%" set to 80% of static (true 100% - wide open)...

SS

jays05 · 09-16-2005, 08:41 AM

I'd love to see the boost curve.

**Siegel Racing** · 09-16-2005, 09:01 AM

Thought I had posted that:

dang, having issues with the program.

the 365.5 was running 19.55 psi at 3400 and about 16.6 at 6800.

The 360.0 had 18.76 psi at 3400 and 16.1 psi at 6800. Fairly smooth between them on the dyno, PERFRCTLY smooth on the street.

The customer called me this morning to say that he also gained almost 40 miles per tank. This was only one tank, not an average, but he was thrilled.

SS

pt518sti · 09-16-2005, 09:29 AM

Is it normal for the torque to drop that hard towards the end of the powerband?

I'll be the first to admit I'm no expert when it comes to tuning

donmei · 09-16-2005, 09:41 AM

Scott,
I know its not most tuners priorities to maximize fuel economy, but it certainly can't hurt. I'm guessing (please correct me if I'm wrong) that at low manifold pressures you are most concerned about drivability.

Has anyone played around with aggressively leaning the mixture and advancing the ignition at low manifold pressures typically seen while cruising at lets say 65 mph on level ground.

I realize that that adds more complexity when transitioning to less advance and richer mixtures associated with higher pressures, but it would seem that with the published A:F ratios that an STi has stock, there would be lots of room for improvement in fuel economy for those who spend most of their time driving to work while pulling 10 in-hg of vacume.

Don
p.s. I have no practical experience with the STi but it seems we are way richer than we need to be at low MAP.

White05sti · 09-16-2005, 11:13 AM

wow this is great news, although im going to be running a fmic with my stock turbo, im glad to see its not an over kill and there are gains.

**Siegel Racing** · 09-16-2005, 11:23 AM

Remember that the torque is shown ONLY on the left axis, the right axis is whp, which is different. It does drop to near 220, which is near 40 higher than stock. This is also the STOCK turbo, so it is WAY out of breath at 7k and 16 psi... (it was still running near 30 degrees of timing though, so it was happy.)

SS

FasStAsS_sTi · 09-19-2005, 07:59 PM

Quote:

Originally Posted by nhluhr

Also, thickness of an IC core is far less important than exposed frontal area. The transfer of heat from the charged air to the aluminum to the ambient air is fastest where there is the largest gradient. For this reason, the first inch of thickness is where most of the charge air cooling is getting done. The remaining inches are just there for bling and extra flow capacity - They help very little in actually cooling the charge air. If somebody would design a FMIC that didn't have a retardedly thick core (yes, I'm talking about APS here), and that placed the endtanks on the top and bottom instead of the sides, I'd buy it.

thats wat i do 4 my daily grind =) i design and manufacture them

09-14-2005, 02:15 PM	#31
esemes S204 Racer Car: 996TT Location: clearh²o, FL Posts: 4,756 IWSTI Addict since: Jul 2004 Trader Rating: (12)	more on the top mount? This ad is not endorsed by this member. Please register or login to hide this ad.

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09-14-2005, 03:41 PM	#33
Siegel Racing Authorized Vendor Car: Your STi ;) Fav Mod: Everything Location: Atlanta Posts: 1,330 IWSTI Addict since: Mar 2005 Trader Rating: (2)	Stock injectors and 93 octane from down the street. Which now that you mention didn't seem to want to run as much timing as whatever gas the car came in with. Really, total parts were Injen CAI, TXS (WRX) TMIC (I think they only have the one, and this one used the stock STi Y-pipe under it), Random Tech DUAL catted TBE, EBCS, Walboro, and Ecutek. The engine bay was HOT when we did it and we were hand spraying the TMIC with tap water. This customer road races and this really would be a road race-able setup with a splash of good gas. 18.8 psi peak, tapering to 16.1, minimum timing was near 17 with 29 or so at the top... This is a STRANGELY high car, but nothing unnatural was used to make these numbers. Like I said, the car ran better on the street than on the dyno. SS

09-14-2005, 03:50 PM	#34
Siegel Racing Authorized Vendor Car: Your STi ;) Fav Mod: Everything Location: Atlanta Posts: 1,330 IWSTI Addict since: Mar 2005 Trader Rating: (2)	Wolf, you are correct, I tried a little more boost to get the 365.5 wlb-ft 328 whp... SS

09-14-2005, 04:25 PM	#36
Siegel Racing Authorized Vendor Car: Your STi ;) Fav Mod: Everything Location: Atlanta Posts: 1,330 IWSTI Addict since: Mar 2005 Trader Rating: (2)	18.8 peak to 16.1 at 7k

09-15-2005, 06:31 PM	#37
donmei S204 Racer Car: 04 WRB STi Fav Mod: Trailer Hitch Location: CT, U.S.A. Posts: 3,139 IWSTI Addict since: Feb 2004 Trader Rating: (0)	Scott, What was the duty cycle on the stock injectors at max hp? Were they close to 100%? Don

09-16-2005, 08:40 AM	#38
Siegel Racing Authorized Vendor Car: Your STi ;) Fav Mod: Everything Location: Atlanta Posts: 1,330 IWSTI Addict since: Mar 2005 Trader Rating: (2)	95.96% is the highest that I am finding. That's with the DeltaDash logger, which has been shown to add fuel pretty well up to 118-120%... It appears that they have "100%" set to 80% of static (true 100% - wide open)... SS

09-16-2005, 08:41 AM	#39
jays05 Spec C Club Car: Blue 05 STI Fav Mod: 4th gear wheelspin Location: Upstate NY Posts: 2,095 IWSTI Addict since: Nov 2004 Trader Rating: (0)	I'd love to see the boost curve.

09-16-2005, 09:01 AM	#40
Siegel Racing Authorized Vendor Car: Your STi ;) Fav Mod: Everything Location: Atlanta Posts: 1,330 IWSTI Addict since: Mar 2005 Trader Rating: (2)	Thought I had posted that: dang, having issues with the program. the 365.5 was running 19.55 psi at 3400 and about 16.6 at 6800. The 360.0 had 18.76 psi at 3400 and 16.1 psi at 6800. Fairly smooth between them on the dyno, PERFRCTLY smooth on the street. The customer called me this morning to say that he also gained almost 40 miles per tank. This was only one tank, not an average, but he was thrilled. SS

09-16-2005, 09:29 AM	#41
pt518sti S204 Racer Car: 2005 White/Gold STi Fav Mod: TD06-20G/Tein Flex coilovers Location: New York Posts: 2,888 IWSTI Addict since: May 2005 Trader Rating: (8)	Is it normal for the torque to drop that hard towards the end of the powerband? I'll be the first to admit I'm no expert when it comes to tuning

09-16-2005, 09:41 AM	#42
donmei S204 Racer Car: 04 WRB STi Fav Mod: Trailer Hitch Location: CT, U.S.A. Posts: 3,139 IWSTI Addict since: Feb 2004 Trader Rating: (0)	Scott, I know its not most tuners priorities to maximize fuel economy, but it certainly can't hurt. I'm guessing (please correct me if I'm wrong) that at low manifold pressures you are most concerned about drivability. Has anyone played around with aggressively leaning the mixture and advancing the ignition at low manifold pressures typically seen while cruising at lets say 65 mph on level ground. I realize that that adds more complexity when transitioning to less advance and richer mixtures associated with higher pressures, but it would seem that with the published A:F ratios that an STi has stock, there would be lots of room for improvement in fuel economy for those who spend most of their time driving to work while pulling 10 in-hg of vacume. Don p.s. I have no practical experience with the STi but it seems we are way richer than we need to be at low MAP.

09-16-2005, 11:13 AM	#43
White05sti Grassroots STI Racer Location: Maryland Posts: 532 IWSTI Addict since: Oct 2004 Trader Rating: (0)	wow this is great news, although im going to be running a fmic with my stock turbo, im glad to see its not an over kill and there are gains.

09-16-2005, 11:23 AM	#44
Siegel Racing Authorized Vendor Car: Your STi ;) Fav Mod: Everything Location: Atlanta Posts: 1,330 IWSTI Addict since: Mar 2005 Trader Rating: (2)	Remember that the torque is shown ONLY on the left axis, the right axis is whp, which is different. It does drop to near 220, which is near 40 higher than stock. This is also the STOCK turbo, so it is WAY out of breath at 7k and 16 psi... (it was still running near 30 degrees of timing though, so it was happy.) SS