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Old 07-08-2018, 09:21 PM   #57
Irace86.2.0
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I installed the flywheel, clutch, transmission, driveshaft, exhaust, shifter, etc. I got the interior reassembled. I drained the diff. Tomorrow I will get the oil delivered then I just have to fill the trans and diff then put back on the pans.








I gave a few presses of the clutch pedal. The pedal feel was very smooth and even. The stronger pressure plate made for a slight increase in pedal feel, but it was hardly different, and with the Verus forged fork, engagement was so even and solid that the extra effort wasn't very noticeable.

The Exedy Stage 1 pressure plate had noticeably thicker finger plates. I would say the gauge of the metal was around 75-100% thicker. I don't know if the internal spring was stiffer. I don't think the clutch plate was different than OEM; it looked identical. There might have been stronger springs or a slight change to the organic disc, but I wouldn't be surprised if they were identical to the old. Considering my stock one at 63k had barely any wear, I would assume this one will last pretty long. Once I get it on the road, I will give a review, although, the recommend break in period is 750 miles, so it will be a while before I can get put it through the full rpms.
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Old 07-10-2018, 12:22 AM   #58
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I received the AMSOIL and finished the install today. I took the car for a drive and everything seems normal. I'm intensionally dropping the clutch and not riding it at all, and I am not going over 3.5k rpms or getting on it for the next 500-750 miles.

My initial impressions is that the AMSOIL has made the shifting butter smooth. Also, the forged clutch fork has made for a smooth engagement. I can tell the pressure plate is stronger, but the improvement in the fork has almost made the clutch lighter; it is hard to explain. The new TOB doesn't make a sound and moves smoothly on the shaft. I will update this review in a few thousand miles.
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Old 07-30-2018, 01:00 AM   #59
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I purchased some AMSOIL 5w30 and their oil filter. I’ll be doing a change when it comes in.

I’m still doing revisions with DT. The latest tunes really improved throttle response, tip-in behavior, low speed and low throttle response, and a little bit on power. I’m hoping to sort the tuning and fueling, so I can go from the 95mm pulley to the 85mm pulley.
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Old 08-05-2018, 04:14 PM   #60
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Today I purched the DW700 injectors and a DW300c fuel pump. At 85mm the 11-12 psi is maxing out my port injectors.Delicious Tuning had an F1 engineer review the direct injector utilization for their tunes, and they feel like the DIs are at an optimal level, even if they could support more duty that other tuners may utilize.

Zach also recommended that I check my DI seals, but I don’t have any major symptoms of seals problems like rough idle, popping, misfires, etc. but I will be doing a check eventually.
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Old 08-05-2018, 05:58 PM   #61
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Did you do any bottom end work? Are you going to do Flex Fuel?

I just got my car back from the speed shop after the Harrop installation. I'm going Flex, so I already did the injectors/pump.

Currently on a 95mm pulley, though we planned for a 90, have to question the installer on that.

Flex is not fully set up yet as their were some issues with sensors.

Enjoying the Harrop on my 2018 BRZ tS so far, but have only had the opportunity to drive it twice.
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Old 08-05-2018, 07:31 PM   #62
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@firekat

I’m not planning Flex Fuel at this time, nor do I plan or have built the block. The closest location is 40 minutes away, but I may do it in the future for track days only. 11-12psi is plenty for the streets, but maybe for the track it would be nice, yet I doubt the rods would survive long. I’d even consider the 95mm pulley with E85 for the track over 91oct and the 85mm pulley with a stock block, so there is knock resistance, but not too much power.

What pump n injectors did you do? Who did the tune?

Enjoy that kit!
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Old 08-23-2018, 01:33 PM   #63
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Just another update: I have installed the 700cc injectors and had a few revisions done by Zach at DT. I haven’t installed the pump yet, but it is on the list. The pump is more insurance and if I go e85 ever. The car is on the 85mm pulley which gives me almost 13psi at redline. The car feels like a blast to drive.

My review of FI with the Harrop kit is the car feels awesome and anybody on the fence should just do it. The only drawback is the extra front end weight, and it is noticeable. Even with the Braille battery and relocating the water pump more midline, the car is still noticeably heavier, which has changed cornering balance and confidence, but overall the change isn’t enough to offset the gains in corner exit speed and transitional acceleration.
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Old 09-02-2018, 09:09 PM   #64
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Quote:
Originally Posted by Irace86.2.0 View Post
Just another update: I have installed the 700cc injectors and had a few revisions done by Zach at DT. I haven’t installed the pump yet, but it is on the list. The pump is more insurance and if I go e85 ever. The car is on the 85mm pulley which gives me almost 13psi at redline. The car feels like a blast to drive.

My review of FI with the Harrop kit is the car feels awesome and anybody on the fence should just do it. The only drawback is the extra front end weight, and it is noticeable. Even with the Braille battery and relocating the water pump more midline, the car is still noticeably heavier, which has changed cornering balance and confidence, but overall the change isn’t enough to offset the gains in corner exit speed and transitional acceleration.
I concur on your observations. I can drive around the weight increase, a bit different technique than what I used previously. I am planning on doing a couple more mods to address the weight increase. Mostly it will be going with a 5# battery installation. That installation I am designing should not have any impact on being able to be a daily driver and not require a battery tender. Might go with a tower brace as the structure of the front end of this car seems to be willowy. The car does feel more solid with the additional weight. Previously the car would feel a bit floaty on bumpy roads, especially at higher speeds. Not so much now. I consider it a detriment and a benefit - simultaneously.

I am also running a Jackson Racing Dual radiator and AOS for reliability. Don't know exactly how much that added to the weight, but I would not think it would be that much. Figured that would help to deal with the hot summers we have in the Bay Area, and keep the induction system cleaner.

Will be finishing up the Flex Fuel installation later in the week.

Drive Safe!
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Old 09-02-2018, 11:39 PM   #65
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@firekat

Nice. I’ll probably do the JRDR too. It’s on the list.

I’m debating the tower brace. I’d like to stiffen the front, but I don’t want to add more weight. The extra weight seems to make the front feel like there is more oversteer with a lighter rear end. I almost want to add weight to the rear. I might do a custom sound box or something. I want it light, but balanced would be better too. Maybe I’ll do an exhaust manifold someday or something.

———————

Ps Update: I installed the fuel pump. Pretty simple process and everything is working perfectly.
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Old 09-14-2018, 02:05 AM   #66
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I had some problems with a rough idle that would fluctuate up and down from 500 to 1500, and it would seem like it was going to die. Considering it was recommended that I change the direct injector seals, I figured the seals could be the problem, and I decided to pull the SC. When I did get it off, I found that the check valve I bought had snapped on the PCV line. It was a redundant part, but essentially the PCV was venting to atmosphere, and the line going into the SC was just vented to air. This could have been the cause of the rough idle, but I don't know. Regardless, I trudged ahead to the injector seals.

I noticed a lot of dirt around the injectors, which is not too surprising considering the miles, so that will be something to clean up tomorrow.

Here are some pics of the injectors. I didn't have any seals that were missing, torn or destroyed, but they had a lot of carbon buildup, and there was carbon buildup on the heads. The plan is to clean them all up, replace all the seals then cross my fingers that the problem isn't something else with the idle:


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Old 09-14-2018, 02:22 AM   #67
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Here are the pics of the different injectors. Like I said, carbon buildup, and there is some signs that there may have been blow-by past the seals. Note that most of the dirt and debris on the injectors was from when they were pulled and not prior:




-------------------------


-------------------------


-------------------------

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Old 09-15-2018, 12:56 AM   #68
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Thanks to the help of my beautiful wife, we were able to finish the project today, and we got the car running.

She did an excellent job cleaning around the injector ports:




I cleaned the injectors then we cleaned the insides by attaching them to a battery and running cleaner through them while we pulsed them (as seen on Youtube). This verified the spray pattern was good and the nozzles were clean. The slit can be seen now:




I used a custom setup to get the seals on the injectors based on some items I had in the garage (as seen on Youtube). Seemed to work perfectly:



The car fired up and idled perfectly, which was mostly due to fixing that PCV venting to atmosphere on the manifold side, but also due to the injectors. I drove the car, and not only was it smoother, but the tip in response was much better. Before, anything under 4k+/- and in higher gears would sometimes want to bog a little. Now it has great tip in behavior 2k and up in any gear, which I attribute to the seals being fixed and the injectors cleaned.
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Old 10-22-2018, 06:45 PM   #69
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Update:

I am enjoying the boost. The kit is very impressive. The only thing that I have had to modify or consider when driving besides the power is my throttle input for when the actuator/bypass opens/closes. You can literally just hang out at that input threshold and have the flap go back and forth from open to closed and have the car jerk around in the process. The solution is to use more gas or less gas.

The other big news is I decided to buy DT Flex Fuel system. I've been driving past E85 stations on my commute to school, so it is possible for me to access it now. I'm still hoping we will get a station closer to my house in the future. The closest one right now is in Napa, which is like 40 miles away.
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Old 10-30-2018, 11:34 PM   #70
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I’ll get some install pics later, but I wanted to say that I installed the Flex Fuel kit, and today was my first day on corn oil, and boy oh boy is it awesome. The tune is butter smooth and the power delivery is awesome! The torque curve seems so solid at all rpms and predictable and strong. Definitely happy with the kit. It even felt better on 91. I’d definitely recommend the kit if you have access to E85.
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