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1991 Honda Prelude 4WS Si - Prelude To Perfection

Hidden treasure or more than meets the eye?

Big Mike
Mar 27, 2014 SHARE

"I honestly didn't know what I was buying at the time," says Ryan Seiler of Sioux Falls, South Dakota, who has no problem acknowledging that. In fact, he didn't even know how to drive a manual vehicle. He looks back at the car literally and figuratively and he can't help but smile because what started as a child's toy, turned into a man's accomplishment.

1991 honda prelude 4WS si feels twincam shift knob 02 Photo 2/14   |   1991 Honda Prelude 4WS Si - Prelude To Perfection

Ryan purchased this car when he was only 15 years old. His father went with him and actually had to test drive the car for him. The two liked the vehicle and Ryan's father gave his nod of approval, so the purchase was made. The only thing left was to get the car back to its new home, which was more than a few miles away. This time, rather than his father driving it, Ryan climbed into the driver seat and fired her up. "I somehow miraculously drove it 80 miles back home," Ryan recalls. As soon as he got it home, he started cleaning the car up and was very pleased with the results. "The car cleaned up great, the interior was mint, it ran great and the best part of all, there was minimal rust for a South Dakota car."

Ryan decided to start looking deeper into his new Prelude and learn more about his new purchase. What he discovered surprised and excited him. "Upon research I discovered we had happened across a rare Honda find with it being a 4ws model and in such nice condition. Additionally, the car has the rare red on black color combo paired with a factory 5-speed." Most importantly, though, the car ran so well that it provided Ryan with a flawless two years of daily driving. That is, until one fine summer day when a motorcycle ran a stop sign and t-boned him. That's right, the motorcycle t-boned him! But rather than being discouraged, Ryan embraced the accident as an opportunity and redid the entire car in the factory Phoenix Red paint. With the car freshly repainted, Ryan decided to invest in a daily driver so that he could preserve the Prelude and have it last forever, as-is. For all we know, that could have and would have happened, but Ryan and a group of friends decided to make a trip to Import Alliance in Nashville, Tennessee.

"We were completely blown away," reminisces Ryan. "I got to see the cars I followed online, read about in the magazines, and many other vehicles that were just over the top. I loved every minute of it and it provided a ton of inspiration for me." The bug hit Ryan so hard that within a week of returning from IA he began tearing the car apart. His plans were relatively mild as he intended to "do a mild tuck and shave with the B20a5 engine," but that changed instantly when he found a killer deal on another '91 Prelude that had a motor on its way out. "I thought my original interior was in mint condition but somehow this car topped it." So for $350 it was an easy decision to make. He took what he needed and even drove the car for a few months before turning around and selling it for a bit of a profit. The money from the sale was going to go to the purchase of an H22 swap, but after a conversation with a couple of people-myself included-he decided to go with an F20B swap.

1991 honda prelude 4WS si RBC intake manifold 08 Photo 6/14   |   1991 Honda Prelude 4WS Si - Prelude To Perfection

He took the car, sans motor, to his friend Ryan B's shop where he had him commence executing what Ryan had envisioned. "I didn't get too crazy with it. I left a lot of the OEM structure and just filled the unnecessary holes and smoothed all of the seams. It came out exactly how I pictured it," Ryan states. While the engine bay work was being done, he was collecting all of the parts to compliment the motor. A custom intake sends air through a Spoon Sports throttle body to a K-series RBC intake manifold mated to the F20B by a QSD adaptor plate. The exit path starts with a coated Bisimoto header and continues through a custom exhaust system consisting of a Vibrant Performance 18-inch resonator and a Stealth muffler. AEM Electronics was called upon for their tried and true Engine Position Module (EPM) that replaces the stock distributor and sends power to the coil- on-plug conversion all overseen by an AEM Series 2 EMS. Enabling everything to work together is a custom Rywire engine harness. A rare Feel's shift knob is connected to a Hybrid Racing shift box that Ryan had to tailor to fit his chassis/motor combination along with shifter cables to control the coveted T2T4 SiR LSD transmission. As you can see, Ryan planned to use the best components available for this build, even if that meant having to customize them to work in this particular setting. And don't think that Ryan neglected what you cannot see. In addition to the KSport Type RR coilovers with aggressive 16K front and 14K rear spring rates, Ryan replaced every single bushing as well as ball joints, tie rods, and wheel bearings; and he cleaned up and powdercoated every suspension component while they were out.

Simply by restoring and modifying a third-gen Prelude, Ryan knew his build would stand out in a crowd. But he set out to build something different while using top quality components and not settling for anything less. The results speak for themselves - the car is gorgeous. Upon first glance it simply looks like a refreshed third-gen Prelude, but when you look closely you realize that there is far more than meets the eye.

1991 honda prelude 4WS si JDM EDM thin moldings 05 Photo 7/14   |   1991 Honda Prelude 4WS Si - Prelude To Perfection

Bolts & Washers

Propulsion
Honda F20B
Custom intake
Circuit Hero Velocity stack
K&N filter
Spoon Sports 70mm throttle body
RBC intake manifold
QSD H2K intake manifold adaptor
Explicit Speed Performance motor mounts
Bisimoto header
RDX 410cc injectors
Hybrid-Racing fuel rail
Hybrid-Racing FPR
K-Tuned inline fuel filter
Vibrant Performance 18" resonator
Vibrant Performance Stealth Muffler
T2T4 LSD transmission
Hybrid-Racing shifter box
Hybrid-Racing shifter cables
Exedy Stage 2 clutch
Bisimoto lightweight flywheel
Bisimoto cam gears
Rywire Mil-spec engine harness
Rywire COP harness
Raxles swap axles
Feel's Twincam oil cap
Downstar bolt kit

1991 honda prelude 4WS si F20B 04 Photo 8/14   |   1991 Honda Prelude 4WS Si - Prelude To Perfection

Suspension
KSport Type RR coilovers 16K front, 14K rear spring rates
All new OEM Honda bushings
Adjustable rear endlinks

Resistance
Ceramic brake pads
Downstar brake tuckin' kit
Custom brake line tuck

Wheels And Tires
Volk Racing CE28N, 16x7 +42mm
Yokohama SDrive, 205/45-16
Rays lug nuts

Exterior
R-51 Phoenix Red paint
JDM/EDM front lip
JDM/EDM rear lip
JDM/EDM thin moldings
JDM/EDM power folding mirrors
1funryd front lip

Interior
Hybrid-Racing "bolt-in" shift box
Hybrid-Racing shifter cables
Hybrid-Racing shift cable adaptor plate
Feel's Twincam shift knob
EM Racing C-pillar bar

1991 honda prelude 4WS si rywire mil spec harness 09 Photo 12/14   |   1991 Honda Prelude 4WS Si - Prelude To Perfection

Electronics
AEM Series 2 EMS
AEM Engine Position Module
OEM K-series Civic Si coilpacks
Kenwood headunit
Memphis Audio speakers

Props
I have to first thank my parents for supporting me through this entire process and letting me use a garage spot in their home from then till now. I also owe it big to a lot of great people whom without none of this would have been possible: Bruce VB, Preston VB, Eli VB, Brady J, Aaron F, Jeremy K, Justin J, Zach R, Jon-Eric D, Adam G, Josh D, Ryan B, Hubert R, Greg H, The Big Mike, Joey, Shawn and Dareck at Excessive Autosports, Ryan and David at Rywire, Tim at Hybridracing, Julio and Bisi at Bisimoto, Frank at Downstar, Sean T at 1funryd Performance, Autrey at DWS Parts, Vern E at the Honda Parts Department, and my brother Aaron for introducing me to Hondas.

1991 honda prelude 4WS si JDM EDM front lip 10 Photo 13/14   |   1991 Honda Prelude 4WS Si JDM EDM Front Lip 10

Owner Specs

Daily Grind
Student

Favorite Site
nwp4life.com

Screen Name
4ws Ryan

Building Hondas
7 years

Dream Car
NSX

Inspiration For This Build
Doing something different

Future Build
Integra Type R or S2000

The Prelude community

The Prelude community is a relatively small group when compared to the massive number of say, Civic and Integra owners and enthusiasts. Nonetheless, Prelude enthusiasts are quite hardcore in their devotion to the chassis. There are even subcultures and followings within the niche fan base for those dedicated to different generations of the chassis. Regardless, they all keep in touch and convene with each other through various Internet mediums such as Facebook groups and Prelude-specific forums. It was in one of those that Ryan and I became acquainted quite some time ago, and I was one of the people that he cites as reason for going with the F20B motor rather than the more common H22a swap. Although there aren't an abundance of sites to go to, the ones that do exist are quite comprehensive and provide an invaluable amount of information for those just getting in to the chassis. Additionally, fellow enthusiasts are quick to help each other out, online and in person.

1991 honda prelude 4WS si JDM EDM front lip 12 Photo 14/14   |   1991 Honda Prelude 4WS Si JDM EDM Front Lip 12
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Sources

Hybrid Racing
Baton Rouge, LA 70809
225-932-9588
http://www.hybridracing.com
Bisimoto
Ontario, CA 91761
888-922-6686
http://www.bisimoto.com
AEM Electronics
Hawthorne, CA 90250
310-484-2322
www.aemelectronics.com
By Big Mike
37 Articles

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