Crawford Performance R&D 2.6 Short Block: 530 whp, 530 wtq

**CrawfordPerformance.com** · 07-06-2006, 06:02 PM

Crawford Performance has been working on a new short block package which incorporates a Crawford Performance Billet Stroker Crank. The new short block will have a displacement of 2.6 liters and the name for it has not be designated yet. We thought we would offer some insight into a new short block and the results we have thus far.

From the tuners perspective the short block package is not a peaky horsepower motor, instead it offers a wide power band, capable of making 500 wheel horsepower across the entire power band. Tuning the engine is similar to tuning most Crawford Performance engines, one step at a time.

From the racers point of view having a wide flat power band makes it easier to control and understand the car in and out of the corner. While being a 2.6 liter it also offers a better throttle response over a standard 2.5 liter, making it quicker out of the corner and up to speed.

Wheel Horsepower (green)
Boost Graph (blue)

For the tuners out there we chose to run 31 PSI at peak Torque and then slowly drop it off to 29 PSI by redline. While this engine can run 31 PSI all the way to redline, we found that the power difference was minimal at best with 31 PSI at redline over 29. So dropping it down 29 PSI will in the long run keep the engine cooler and keep the car more consistent especially in hot racing conditions.

The 720cc injector duty cycles on Delta Dash were reaching upwards of 85% duty cycle. According to EcuTeK that makes the actual duty cycle's of these injectors under 70% duty cycle, which is 10% lower the recommended limit of the injector duty cycle.

Accelerations G's (green)
Flywheel Torque (blue)

The G acceleration is closely tied to the torque, and takes into account the weight of the car. The G's are a good way to compare heavy vehicle with lots of power to a light car with less power. Just because you have 500 wheel horsepower doesn't mean you will beat a 250 wheel horsepower Hayabusa. On our dyno chart simulator you can compare various turbo's and engines to give you a better idea of what various parts will do on your own vehicle.

For the professional drivers out there a lot of low end G's will have a quick acceleration out of the corners but not pull very well up top. Where as a lot of G's high in the rev range will have great top end but be killer in the corners. A well balanced G acceleration graph will give power everywhere that is needed on a track but this is a very hard thing to accomplish. This is our R&D project that will offer a better range for multiple race tracks.

Flywheel Horsepower (green)
Flywheel Torque (blue)

This is our standard Flywheel Horsepower and Flywheel Torque. This is another way to view and compare data collected by the dyno to compare to a stock Subaru STi.

Cheers,
Crawford Performance
I-Speed USA

whitson01 · 07-06-2006, 07:11 PM

i dont care..

BM_STi · 07-06-2006, 07:15 PM

what is crawford trying to prove. maybe the only way we can warm up to them is if we each get a free motor!

PartySTi · 07-06-2006, 07:18 PM

Not this stupid G-load crap again, didn't you already get pwn3d enough on nasioc?

**La Mer** · 07-06-2006, 07:19 PM

I can't believe they just did that.

**lackskill** · 07-06-2006, 07:26 PM

does this motor come with the patented bobblehead pistons?

whitson01 · 07-06-2006, 07:30 PM

im sure it does.. why shouldnt it for 3 grand or what ever it costs..

whitson01 · 07-06-2006, 07:33 PM

Quote:

Originally Posted by lackskill

does this motor come with the patented bobblehead pistons?

hey dont forget.. that wasnt there problem/fault

**lackskill** · 07-06-2006, 07:35 PM

mebbe I am too hard on them?

eh... Id rather get banned for flaming the **** out of them and possibly have the chance to help one person not lose a motor than to sit back and watch people get screwed...

HKS whore · 07-06-2006, 07:38 PM

wooow ... wat a whole bunch of bull **** !

***evilSTi7*** · 07-06-2006, 07:43 PM

[radioactiveman]Up and Atom![/radioactiveman]

RacerXS · 07-06-2006, 08:15 PM

That's some fancy lookin graphs there.........ima changed my mind bout these fella's......they be gittin smarter.

ih8vtec13 · 07-06-2006, 08:28 PM

Wow you are still here and trying to sell motors, guess doing donuts on nasioc didnt help you too much

MacSTi · 07-06-2006, 08:40 PM

Quote:

Originally Posted by ih8vtec13

Wow you are still here and trying to sell motors, guess doing donuts on nasioc didnt help you too much

LOL!!!

whitson01 · 07-06-2006, 09:05 PM

doing doughnuts on nasioc?? whats that about?

07-06-2006, 06:02 PM	#1
CrawfordPerformance.com Authorized Vendor Car: Org/GunMtl 08 STI Fav Mod: Power Location: Oceanside, CA Posts: 580 IWSTI Addict since: Aug 2004 Trader Rating: (0)	Crawford Performance R&D 2.6 Short Block: 530 whp, 530 wtq Crawford Performance has been working on a new short block package which incorporates a Crawford Performance Billet Stroker Crank. The new short block will have a displacement of 2.6 liters and the name for it has not be designated yet. We thought we would offer some insight into a new short block and the results we have thus far. From the tuners perspective the short block package is not a peaky horsepower motor, instead it offers a wide power band, capable of making 500 wheel horsepower across the entire power band. Tuning the engine is similar to tuning most Crawford Performance engines, one step at a time. From the racers point of view having a wide flat power band makes it easier to control and understand the car in and out of the corner. While being a 2.6 liter it also offers a better throttle response over a standard 2.5 liter, making it quicker out of the corner and up to speed. Wheel Horsepower (green) Boost Graph (blue) For the tuners out there we chose to run 31 PSI at peak Torque and then slowly drop it off to 29 PSI by redline. While this engine can run 31 PSI all the way to redline, we found that the power difference was minimal at best with 31 PSI at redline over 29. So dropping it down 29 PSI will in the long run keep the engine cooler and keep the car more consistent especially in hot racing conditions. The 720cc injector duty cycles on Delta Dash were reaching upwards of 85% duty cycle. According to EcuTeK that makes the actual duty cycle's of these injectors under 70% duty cycle, which is 10% lower the recommended limit of the injector duty cycle. Accelerations G's (green) Flywheel Torque (blue) The G acceleration is closely tied to the torque, and takes into account the weight of the car. The G's are a good way to compare heavy vehicle with lots of power to a light car with less power. Just because you have 500 wheel horsepower doesn't mean you will beat a 250 wheel horsepower Hayabusa. On our dyno chart simulator you can compare various turbo's and engines to give you a better idea of what various parts will do on your own vehicle. For the professional drivers out there a lot of low end G's will have a quick acceleration out of the corners but not pull very well up top. Where as a lot of G's high in the rev range will have great top end but be killer in the corners. A well balanced G acceleration graph will give power everywhere that is needed on a track but this is a very hard thing to accomplish. This is our R&D project that will offer a better range for multiple race tracks. Flywheel Horsepower (green) Flywheel Torque (blue) This is our standard Flywheel Horsepower and Flywheel Torque. This is another way to view and compare data collected by the dyno to compare to a stock Subaru STi. Cheers, Crawford Performance I-Speed USA This ad is not endorsed by this member. Please register or login to hide this ad.

07-06-2006, 07:43 PM	#11
*evilSTi7* The Hoff Fan Club, member #001 Car: 05 WRB/Gold Fav Mod: Hood Scoop Homer Location: Where ever The Hoff is! Posts: 10,365 IWSTI Addict since: Jul 2004 Trader Rating: (4)	[radioactiveman]Up and Atom![/radioactiveman] Last edited by evilSTi7; 07-06-2006 at 08:15 PM.

07-06-2006, 09:05 PM	#15
whitson01 Spec C Club Car: 06 acura tsx Fav Mod: soon to come Location: east TN Posts: 1,417 IWSTI Addict since: Dec 2004 Trader Rating: (3)	doing doughnuts on nasioc?? whats that about? This ad is not endorsed by this member. Please register or login to hide this ad.

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07-06-2006, 07:11 PM	#2
whitson01 Spec C Club Car: 06 acura tsx Fav Mod: soon to come Location: east TN Posts: 1,417 IWSTI Addict since: Dec 2004 Trader Rating: (3)	i dont care..

07-06-2006, 07:15 PM	#3
BM_STi S204 Racer Car: 04.7 AW STi Fav Mod: EQ Tuning Location: NorCal (707) Posts: 2,909 IWSTI Addict since: Apr 2004 Trader Rating: (6)	what is crawford trying to prove. maybe the only way we can warm up to them is if we each get a free motor!

07-06-2006, 07:18 PM	#4
PartySTi Spec C Club Car: 2006 Aspen White STI Fav Mod: Air Freshener Location: Piscataway, NJ Posts: 1,559 IWSTI Addict since: Dec 2005 Trader Rating: (1)	Not this stupid G-load crap again, didn't you already get pwn3d enough on nasioc?

07-06-2006, 07:19 PM	#5
La Mer NIИja Location: US - Southern California Posts: 38,252 IWSTI Addict since: Jan 2006 Trader Rating: (5)	I can't believe they just did that.

07-06-2006, 07:26 PM	#6
lackskill Moderator Car: 05 Ram 3500 CTD Fav Mod: Majin Posts: 14,727 IWSTI Addict since: Apr 2006 Trader Rating: (9)	does this motor come with the patented bobblehead pistons?

07-06-2006, 07:30 PM	#7
whitson01 Spec C Club Car: 06 acura tsx Fav Mod: soon to come Location: east TN Posts: 1,417 IWSTI Addict since: Dec 2004 Trader Rating: (3)	im sure it does.. why shouldnt it for 3 grand or what ever it costs..

07-06-2006, 07:35 PM	#9
lackskill Moderator Car: 05 Ram 3500 CTD Fav Mod: Majin Posts: 14,727 IWSTI Addict since: Apr 2006 Trader Rating: (9)	mebbe I am too hard on them? eh... Id rather get banned for flaming the **** out of them and possibly have the chance to help one person not lose a motor than to sit back and watch people get screwed...

07-06-2006, 07:38 PM	#10
HKS whore Banned Car: R.I.P WRB 06 STi Fav Mod: ~ HKS Ti ~ Location: NEW JERSEY Posts: 1,240 IWSTI Addict since: May 2006 Trader Rating: (1)	wooow ... wat a whole bunch of bull **** !

07-06-2006, 08:15 PM	#12
RacerXS S204 Racer Car: 05' Sti Black Fav Mod: Dyslexia Location: Central, NJ Posts: 3,351 IWSTI Addict since: Oct 2004 Trader Rating: (13)	That's some fancy lookin graphs there.........ima changed my mind bout these fella's......they be gittin smarter.

07-06-2006, 08:28 PM	#13
ih8vtec13 Junior STI Driver Location: Next to Bambi Posts: 53 IWSTI Addict since: Apr 2005 Trader Rating: (0)	Wow you are still here and trying to sell motors, guess doing donuts on nasioc didnt help you too much