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Discussion Starter · #1 ·
What is the best chassis to use for a K20 swap project; EG/EK/DC?

Which would YOU choose, and why? (and if you've already completed your swap and you could do it again, which chassis would you use?)

Some points to consider:
-cost (cost to purchase the chassis, cost of swap into chassis)
-weight
-style (personal preference)
-age of chassis
-wheelbase
-ease of install
-aftermarket support
 

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I am going to quote what Brian G from hasport replied, a while back

brian g said:
By far the best two body styles are the EG Civic and DC2 Integra. The problem with the EF is the height of the hood line, it's too low for the tall K20, let alone the taller K24. The EK has it's own problems.

The EK's suspension geometry is similar to the EG/DC, but Honda used a different design for the rear crossmember, with the rack inside the structure. This makes for a larger rear crossmember which interferes with the housing on the K-series transmission. Consequently the engine can't be mounted as far back. It's not that bad though, the cars balance front to rear, is very similar to an EK with a B18C. It just looks like it's really forward because the intake manifold on the front of the engine.

The K-series engine is much more compact than the B or H series motors. The weight distribution is also superior the that of the B-series engine because it leans backward putting the head over the differential, unlike the B-series engine which leans forward. The H-series may have better weight distribution than a B-series, but it also weighs 100 lbs more which negates any advantages.

The EG/DC's rear crossmember construction allows you to move the engine back almost two inches further compared to the EK. There are a couple of advantages to this, like straighter axels, better weight distribution and more ground clearance.

Although the axle angle isn't bad in the EK, they're about as straight as you could want in the EG/DC. Straighter axles can make a big difference when you are doing high horsepower applications. It also means less wear and tear on the boots.

Having the engine further back means better weight distribution too. When racing weight that is further from the center of gravity can adversly affect handling. In drag racing this isn't the case, but it may not be worth the extra stress put on the axels.

Because the hood slopes down towards the front of the car, when you move the engine back it can be raised more. The K20 is taller than the B-series motors and they need to be mounted as close to the hood as possible to maximize ground clearance. We made our kit so close to the hood that if you decide to go K24, you'll need to trim some of the hood under structure. The DC though has more hood clearance for the K24.

It's interesting though, some time we'll put a K20 into an AF (84-87 Civic/CRX), an AV (86-89 Integra), a 94 Accord and a DA (90-92 Integra), who knows, maybe one of those will work even better.

brian g
 

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Discussion Starter · #4 ·
nikos said:
Of course since that answer, hasport is offering an EK 2 kit that places the engine in similar position as the EG by using an EG crossmember
I was going to mention the EKK2 kit. That would make the EK swap very similar to the EG / DC swap, apart from the increased cost and complexity involved.

I THINK I read somewhere that the EK has a bigger wheelbase than the EG / DC. Is that true? If it's true, will the increased weight of the EK negate any advantage it has with its bigger wheelbase? And is the EK more structurally rigid than the EG / DC stock for stock?
 

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1992 Honda Civic CX HB MT 2094
1992 Honda Civic DX HB AT 2275
1992 Honda Civic Si HB MT 2326
1992 Honda Civic VX HB MT 2094


1996 Honda Civic CX HB MT 2222
1996 Honda Civic CX HB AT 2298
1996 Honda Civic DX HB MT 2242
1996 Honda Civic DX HB AT 2317
 

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YOU WAN TO MAKE YOU'RE RIDE THE QUICKEST GO WITH THE 88-91 CRX OR OLDERS THAN 88 WILL BE BETTER MUCH LIGHTER I WOULD RATHER GO WITH THE 87 & OLDER CRX LIGHTER JUST MIDIFIED THE FRONT END THE HOOD FITMEN JUST CUT THE HOOD LIKE pacman DID IN HIS VIDEO THEY LOOK AWSOME I PERSONNALY LIKE THEN LIKE THAT WITH THE HOOD CUT CRAZY CRAZY .....





PEACE
 

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...And thank you for that all caps speech....about something far more difficult.... :D

If you want more creature comforts, go with the DC. Leather seats, climate control, power everything are more common in the Acuras than the civics. If you want less creature comforts that translate into better weight savings, go with an EG VX or CX.

Style, I like both, and it's personal preference. But the Civic pretty much CREATED the import scene, so it will be much easier to find parts for it.
 

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1985 Honda CRX Si MT 1883
1985 Honda CRX DX MT 1819
1985 Honda CRX HF MT 1713
1986 Honda CRX Si MT 1953
1986 Honda CRX DX MT 1819
1986 Honda CRX HF MT 1713
1987 Honda CRX Si MT 1978
1987 Honda CRX DX MT 1865
1987 Honda CRX HF MT 1713
1988 Honda CRX Si MT 2017
1988 Honda CRX DX MT 1922
1988 Honda CRX HF MT 1819
1989 Honda CRX Si MT 2138
1989 Honda CRX DX MT 2048
1989 Honda CRX HF MT 1834
1990 Honda CRX Si MT 2174
1990 Honda CRX DX MT 2103
1990 Honda CRX HF MT 1967
1991 Honda CRX DX MT 2103
1991 Honda CRX HF MT 1967
1991 Honda CRX Si MT 2174
 
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