Unity Performance Humza's FL5 Build Thread

[RODSCIVIC]

I settled on the tires and tire size for the 19x10 +40 ZE40!

265/35R19 Continental ECS 02

Thankfully no rub in any instance so far, and the ride quality hasn’t been impacted with the move to 19’s.

Keep us updated on the tire setup. I’ve got the same wheel specs and was hesitant to go with a 265/35 because of possible rubbing. I’m on Eibach Pro Kit with the front pins pulled.

 

[jtlctr]

I’d also like your input on steering response and grip with those tires in that size. I am considering 18x10” wheels with those tires in 265/35/18 hoping the wider wheel will stretch the tire slightly to help with sidewall flex on the higher profile tires.

 

[B16B]

Spring’s here, and the build season is moving fast. First up: the Cusco wing risers.

I’ll be honest—they’re pricey for what they are. But the quality and finish are spot on, and the look makes it worth it. Plus, they hold value well, so if I decide to move on from them later, I should be able to recover a good portion of the cost.

The raised OEM wing setup looks incredible now. Next step is dialing in the front end—on the hunt for a lip to balance out the rear aero and tie the whole look together.

https://unity-performance.com/products/cusco-high-position-rear-wing-brackets-23-civic-type-r-fl5

I'm sure it looks better in person, but I'm digging the Cusco wing risers. I might pull the trigger. In theory I should get the Mugen Group A spoiler to finish my build, but I love the look of the OEM carbon fiber spoiler enough to not want the Mugen spoiler.

Did the Cusco wing risers use the oem mounting gasket/seals?

 

[Unity Performance]

Keep us updated on the tire setup. I’ve got the same wheel specs and was hesitant to go with a 265/35 because of possible rubbing. I’m on Eibach Pro Kit with the front pins pulled.

I’d also like your input on steering response and grip with those tires in that size. I am considering 18x10” wheels with those tires in 265/35/18 hoping the wider wheel will stretch the tire slightly to help with sidewall flex on the higher profile tires.

The switch from the DWS06+ to the ECS02 is definitely noticeable. I took the car out last night for a quick drive to get a feel for the grip, steering response, and how the suspension is handling the move to 19s. Steering response feels a little sharper, which I’d assume is mostly due to going from a UHP all-season to a stickier summer tire.

What I’m still trying to wrap my head around, though, is the ride quality. I expected the 19s to feel choppier, but since both setups are running a 35-series sidewall, that hasn’t really been the case. Surprisingly, the 19s actually feel a bit more comfortable.

The only thing I can think of is that the 19” wheel and tire setup is a couple pounds heavier overall. Maybe the added unsprung weight is making the setup feel a little less reactive to small road surface changes, almost like it’s not getting tossed around as easily? Not sure if that’s the right explanation, so I’m curious if someone has a better technical take on it.

Oh, and still no rub! Very happy about that

 

[Unity Performance]

I'm sure it looks better in person, but I'm digging the Cusco wing risers. I might pull the trigger. In theory I should get the Mugen Group A spoiler to finish my build, but I love the look of the OEM carbon fiber spoiler enough to not want the Mugen spoiler.

Did the Cusco wing risers use the oem mounting gasket/seals?

The more I see the car with it, the more I like it! Still trying to figure out the Lip/Splitter situation to perfect the look. If I catch a part-out for an Exceed Lip, I may have to jump on it!

Cusco Risers come with their own gasket for each riser. Friend of ours who came over to install it has done a number of wing and riser swap on FL5's, and he commented that the Cusco hardware, fit and finish is much better than the rep brand's version of these risers.

 

[jtlctr]

The switch from the DWS06+ to the ECS02 is definitely noticeable. I took the car out last night for a quick drive to get a feel for the grip, steering response, and how the suspension is handling the move to 19s. Steering response feels a little sharper, which I’d assume is mostly due to going from a UHP all-season to a stickier summer tire.

What I’m still trying to wrap my head around, though, is the ride quality. I expected the 19s to feel choppier, but since both setups are running a 35-series sidewall, that hasn’t really been the case. Surprisingly, the 19s actually feel a bit more comfortable.

The only thing I can think of is that the 19” wheel and tire setup is a couple pounds heavier overall. Maybe the added unsprung weight is making the setup feel a little less reactive to small road surface changes, almost like it’s not getting tossed around as easily? Not sure if that’s the right explanation, so I’m curious if someone has a better technical take on it.

Oh, and still no rub! Very happy about that

Do the 265/35/19s affect acceleration noticeably being 1” bigger in diameter?

 

[Unity Performance]

Do the 265/35/19s affect acceleration noticeably being 1” bigger in diameter?

Not that I've noticed with day to day driving. I'd have to time 60-130 runs back to back on the same road surface, same weather conditions to tell the difference.

 

[RODSCIVIC]

The switch from the DWS06+ to the ECS02 is definitely noticeable. I took the car out last night for a quick drive to get a feel for the grip, steering response, and how the suspension is handling the move to 19s. Steering response feels a little sharper, which I’d assume is mostly due to going from a UHP all-season to a stickier summer tire.

What I’m still trying to wrap my head around, though, is the ride quality. I expected the 19s to feel choppier, but since both setups are running a 35-series sidewall, that hasn’t really been the case. Surprisingly, the 19s actually feel a bit more comfortable.

The only thing I can think of is that the 19” wheel and tire setup is a couple pounds heavier overall. Maybe the added unsprung weight is making the setup feel a little less reactive to small road surface changes, almost like it’s not getting tossed around as easily? Not sure if that’s the right explanation, so I’m curious if someone has a better technical take on it.

Oh, and still no rub! Very happy about that

Glad to hear it. I wonder how the Indy's would fair in that same spec. Ive always been of fan of the Indys. As far as comfort goes, I don't have any technical explanations but I felt the same even with a 265/30. If you decide to switch to the DSC Module there will be even more comfort to be had with the ability to use any mode on the street, no joke.

 

[dwag88]

Not that I've noticed with day to day driving. I'd have to time 60-130 runs back to back on the same road surface, same weather conditions to tell the difference.

I'm on 255/35 R19 wheels/tires left over from my FK8. I would think that the 0-60 time would be faster since you should hit it at the top of second gear now. I bet 60-130 is a bit slower though.

 

[Unity Performance]

Glad to hear it. I wonder how the Indy's would fair in that same spec. Ive always been of fan of the Indys. As far as comfort goes, I don't have any technical explanations but I felt the same even with a 265/30. If you decide to switch to the DSC Module there will be even more comfort to be had with the ability to use any mode on the street, no joke.

Historically the Indy’s are louder, especially as they age. In terns of sizing, their section width is narrower than most tires, so I could have even pushed a 275/35 if I went with the Indy’s.

I have the SDI currently installed, it’s been great since September. I’ve had a DSC unit laying around since December, and I’m going to test it out this week to see how it compares.

 

[Unity Performance]

I'm on 255/35 R19 wheels/tires left over from my FK8. I would think that the 0-60 time would be faster since you should hit it at the top of second gear now. I bet 60-130 is a bit slower though.

Yep, 60 will come right at the top of 2nd. I can’t comment anymore about being slower now that the car received an Inlet, Intake, and an Intercooler Kit

Detailed posts to follow..

 

[Unity Performance]

I’ve got some catching up to do here…

Got the car on the dyno in mid-April to establish some baseline numbers. We’ve been using this particular Dynojet for years, and the results have always been consistent with what you’d expect from other well-known dynos, including DRob’s.

I’m happy with this healthy baseline and the car felt every bit as quick as the numbers suggest. Only mods at this time were an MXP Catback and TSP Intake/Inlet Coupler.

 

[Unity Performance]

Got the COBB Intercooler Kit installed on May 14th. Since this car is primarily street-driven with future turbo and fueling upgrades planned, I opted for a bar-and-plate core over a tube-and-fin design.

Packaging and overall quality were excellent. The Garrett-manufactured core is paired with COBB’s own piping and brackets, which are sturdier and nicer than the factory pieces. Fitment was spot-on, with no trimming required on the FL5 despite the instructions mentioning it. We only had to remove the bumper guides due to the significantly larger core size.

While the bumper was off, we also installed a 27WON snorkel and WOT cooling plate. The goal is to maximize airflow while helping offset any cooling efficiency lost from removing the factory shroud.

Once everything was buttoned up, there were no CELs, fitment issues, or drivability quirks.

 

[Unity Performance]

I had a used 27WON snorkel from a friend’s FL5 part-out, so with the bumper already off, it made sense to install it at the same time. It does require removing the factory shroud, which may raise some concerns, but for a primarily street-driven car I didn’t expect it to have any meaningful impact on coolant temperatures.

It would be difficult to compare intake air temperature data before and after the snorkel installation, as the Infinity Designs Intake and Inlet were installed at the same time. Any changes in IATs would be influenced by all three components, making it impossible to isolate the snorkel’s contribution on its own.

I do have plans to upgrade the Rad once the RV6 660AS goes on. It’s not a mandatory upgrade, but as power levels increase, so does the demand on the cooling system. Additional cooling capacity is a worthwhile step to help manage the extra heat and maintain consistent performance.

 

[Unity Performance]

Also threw on the WOT Cooling Plate at the same time. It’s a pretty popular upgrade among track-driven FL5s, and as we slowly add more power, every little bit of cooling helps. It’s a simple mod that helps hot air escape the engine bay and fits right in with the goal of keeping temps in check.

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