Crawford Billet Power Blocks

[akyp]

Originally Posted by Fizz

@nelsmar nice work on the testing and review. Just curious, when you installed them did you notice if there were any additional stresses placed on the oem wiring looms or hoses (i.e. being stretched) now that they're higher up and having less slack?

LHD and RHD cars have completely different wiring looms (found this out in a kinda hard way with a Radium catch can but they took care of me) so you might want to wait for someone in RHD land to get a set and report back about the installation. Unless you want to be that someone.

[mav1178]

Originally Posted by leicaboss

Haha, well I was asking because in other applications - changing the intake manifold completely (for a perf. oriented one) would often result in a decrease in gas mileage.

So after putting on roughly ~600 miles on the car since the Crawford Power Blocks were installed, here's what I find on mileage (see below) and other impressions:

• Approximate highway gas mileage is the same. I'm running wide tires for street, and with winter blend fuel I'm averaging around 28-29MPG.
• City mileage seems to be slightly worse. Not really attributing this to anything other than perhaps a bit more liberal with gas pedal on streets, but my driving style hasn't changed much. Should be noted that the decrease in fuel economy includes the ~60 miles worth of dyno pulls that was done testing both the Crawford pieces, as well as 3 different Ark Design exhaust systems for MotoIQ.
• 5 tanks prior to install of CPB: 1111 miles, 1 track day @ Big Willow, 24.35MPG
• 5 tanks after install of CPB: 865 miles, 1 track day @ Chuckwalla Valley Raceway, 23.46MPG
• Car definitely feels faster on streets. Throttle response 3500-5000 and above 6000 is great, with no difference in exhaust note or engine noise. My engine currently is stock with no mods.

Hope this is enough data to help.

-alex

[Crawford Performance]

Originally Posted by mav1178

So after putting on roughly ~600 miles on the car since the Crawford Power Blocks were installed, here's what I find on mileage (see below) and other impressions:

• Approximate highway gas mileage is the same. I'm running wide tires for street, and with winter blend fuel I'm averaging around 28-29MPG.
• City mileage seems to be slightly worse. Not really attributing this to anything other than perhaps a bit more liberal with gas pedal on streets, but my driving style hasn't changed much. Should be noted that the decrease in fuel economy includes the ~60 miles worth of dyno pulls that was done testing both the Crawford pieces, as well as 3 different Ark Design exhaust systems for MotoIQ.
• 5 tanks prior to install of CPB: 1111 miles, 1 track day @ Big Willow, 24.35MPG
• 5 tanks after install of CPB: 865 miles, 1 track day @ Chuckwalla Valley Raceway, 23.46MPG
• Car definitely feels faster on streets. Throttle response 3500-5000 and above 6000 is great, with no difference in exhaust note or engine noise. My engine currently is stock with no mods.

Hope this is enough data to help.

-alex

Love the detail.... MotoIQ made a great choice with you!

How did your car feel on the track with the Power Blocks? We ran our car at Big Willow last weekend with them and the difference was noticeable. We used to run turn 2 flat after entry and with the Power Blocks we had to breathe the throttle mid corner. We even ran a !:41 while giving driving instructions in the beginner group with two people in the car

[mav1178]

Originally Posted by Crawford Performance

Love the detail.... MotoIQ made a great choice with you!

How did your car feel on the track with the Power Blocks? We ran our car at Big Willow last weekend with them and the difference was noticeable. We used to run turn 2 flat after entry and with the Power Blocks we had to breathe the throttle mid corner. We even ran a !:41 while giving driving instructions in the beginner group with two people in the car

Thanks.. I've known Mike and Martin for quite some time, this was more of a luck thing than anything else. My car had been at their shop to test out exhausts, then your part showed up.

As for on the track... it felt great. Sorta. I ran Chuckwalla for the first time on Saturday, and being that I'm pushing the car ~80% on the track I'm not overly aggressive with my driving.

It does have more power exiting corners, and some parts of the track I'm able to cheat more by staying in a higher gear instead of downshifting. Otherwise I think it's a great mod that doesn't take away anything from the driving experience. Most other mods have a bit of a compromise..

My track times don't show it in a good light, however... last place in Street Class on Saturday haha.

-alex

[Crawford Performance]

Originally Posted by mav1178

Thanks.. I've known Mike and Martin for quite some time, this was more of a luck thing than anything else. My car had been at their shop to test out exhausts, then your part showed up.

As for on the track... it felt great. Sorta. I ran Chuckwalla for the first time on Saturday, and being that I'm pushing the car ~80% on the track I'm not overly aggressive with my driving.

It does have more power exiting corners, and some parts of the track I'm able to cheat more by staying in a higher gear instead of downshifting. Otherwise I think it's a great mod that doesn't take away anything from the driving experience. Most other mods have a bit of a compromise..

My track times don't show it in a good light, however... last place in Street Class on Saturday haha.

-alex

Alex!! this means you got beat by a girl How did Lea Anne look on the track in one of our Crawford FRS cars?

[JimmyMac]

I'm liking the BPB the more I drive with them. The car definitely has more grunt. With these on I've been shifting at about 7000rpms and it lands in a nice sweet about around 5000rpms. I can feel it pulling harder as the rpms climb up. I'll try shifting higher tomorrow morning on the way to work. I think before it felt flat up top past 7000~7500rpms (8000rpm limited). I'll say it's been a great mod with my setup. I'm glad I bought them!

[6speed_Sam]

Originally Posted by JimmyMac

I'm liking the BPB the more I drive with them. The car definitely has more grunt. With these on I've been shifting at about 7000rpms and it lands in a nice sweet about around 5000rpms. I can feel it pulling harder as the rpms climb up. I'll try shifting higher tomorrow morning on the way to work. I think before it felt flat up top past 7000~7500rpms (8000rpm limited). I'll say it's been a great mod with my setup. I'm glad I bought them!

That's good news! Mine shipped out today. So ready to install them.

[mav1178]

Originally Posted by Crawford Performance

Alex!! this means you got beat by a girl How did Lea Anne look on the track in one of our Crawford FRS cars?

Well FWIW, I got beat by guys in a stock FRS/BRZ. Tells you a lot about my current lack of skill... I'm starting to realize this whole "not driving on a track for 10 years" isn't working out so well for me.

Didn't get a chance to see her drive but the car looks great!

-alex

[nor cal frs]

Definitely goin to add this to my mod list! Great job crawfordperformance!

[Optimus Prime]

Man, I would love to get these (and a catted header), but I am not good with a wrench, know nobody who is good with a wrench, and don't know of any reputable shops in northeastern PA to go to! I'm so jealous of everyone!

[FT86POWER]

This looks like a winner!!!

[JimmyMac]

Seems to shift okay around 7500rpms and up to cutoff...

[IAmNotTheDriftKing]

Originally Posted by Optimus Prime

Man, I would love to get these (and a catted header), but I am not good with a wrench, know nobody who is good with a wrench, and don't know of any reputable shops in northeastern PA to go to! I'm so jealous of everyone!

Headers aren't too hard. Get a friend, and try and lift it up a few inches. I did mine alone in about 30 minutes. It is probably faster with a friend! These intake runner spacers probably require more work, but is not impossible just dedicate a day to putting them on.

[Vic]

Just installed these and here's my take
-Having another person help you lift the intake manifold up helps A LOT

-Upon startup the car had a rough start and shut off at idle, then I noticed that one of the 3/8th hoses had came off. You definitely need a new 3/8th hose that connects the manifold to the to the crank case vent because the stock one is too short, but right now I'm using zip ties to hold it in place...still skeptical about it holding up. After I secured the hose in place, everything was fine.
UPDATE: I did not buy a new hose but instead bought hose clamps and tightened it. It should run good, but I will keep check on it periodically and if it looks like its about to come off, I will buy a new hose.

- Drivers side was a PITA to get the blocks through, passenger side was a breeze. (TIGHT SQUEEZE)

- I had a grimmspeed front strut brace, but it doesnt clear now so I guess ill be selling that, and I have a AFE takeda intake but I'll need to get a new silicone connector because the throttle body is now raise and makes the fitment weird.

-was it worth it? IMO, yes it was worth it. Car feels better well rounded now, but I'm not sure if it I had actual gains or if my womanly hands were hurting so much after I installed the blocks that made me all delusional from reality. But honesty, gotta give it a week and see, going to dyno it and check as well.