1991 Honda Civic EF B18 Race Car Build

[Davey]

Apr 7, 2018 19:17:11 GMT welshpug said:

No doubt you will see an increase if you go from 1.5 to 2.5, but 2 or 2.25 would be beneficial and give you some real world torque.

even WRC cars shifting enough air for 360 bhp just run 3"

my 240 bhp engine runs a 2.25 and 190 LBFT.

In most other cases i would agree but here slipngripross is going the right way

One thing these engines like is big exhausts, its one of those strange anomalys.
Trying to get torque out of a vtec is a losing battle at the best of times! They are meant to be revved HARD!

[Davey]

In other news, those seats are amazing! Only thing i would want is bride logos all over them but then your probably tripling your price. Bargain.

[slipngripross]

Yes mate literally just Sold a single carbon Bride for twice the price I got two of these for

[Davey]

Apr 10, 2018 13:11:02 GMT slipngripross said:

Yes mate literally just Sold a single carbon Bride for twice the price I got two of these for

Thought as much! and carbon not kevlar!

Will have to let us know how those seats are for comfort support etc, looking for something that will actually fit in my mini.

[darrenh]

Apr 10, 2018 10:32:03 GMT Davey said:

They are meant to be revved HARD!

yeah, us boring europeans have an annoying habit of preferring to increase torque over the entire rev range

[slipngripross]

lol please don't make this a debate about exhaust velocity. Its well worth doing your research properly before debating gains on NA Honda engines compared with most other manufacturers

[slipngripross]

quick update

managed to take all the weight out of the doors the other day ready to fit the ACW windows when it goes off for bodywork. also new BC BR coilovers arrived with custom spring rates and look pretty sexy, shame they are hidden under the car.

[Davey]

Very nice looking toys.

[lightyearman]

I really like this build mate. bookmarked. Maybe I'll see you on track when I'm in my cr-x one day

[slipngripross]

So some updates for you. Sold my Scooby so I can buy more parts now which is awesome. AJU Motorsport are hooking me up with a bolt in MSA cage, bigger Hi-Spec Brakes and some gauges to make sure the engine is doing what it should. Should all arrive in a couple of weeks.



New rear driver quarter arrived from 6TWO1 Auto Supply to get rid of the obviously filler ridden current one



Found a TRS harness that was old stock in date until 2022 for £103 posted, bargain!



Also Fibreglass bonnet arrived along with front lip and sunroof bung. I previously may have mentioned that due to the way the engine sits in the car I couldn't use the OEM bonnet as it touch and bent around the bonnet to close, I was hoping to solve this problem with the fibreglass one which is a VT bonnet but with 16v bump in it. No joy however the guy who did the swap VDM Motorsport said its a pretty easy job to low and he will do it for free. This got me thinking do I make some changes to engine and gearbox has its coming out anyway??

[79cord]

Did wonder about the curious bonnet description as it looks more like the normal DOHC 16v (with depressed centre like standard Civic apart from bulge), Vtec being raised instead but also with wider headlights toward the centre & slightly relocated latch (which you wouldn't want).
Interesting to hear about revising or spacing (engine) mounts for clearance. Bit of difference between adding mount spacers and removing engine though.

[slipngripross]

yea its a bit of a curse word but the race series states the body shape of the car must remain the same and if I use bonnet raisers they could pull me up on it.

[slipngripross]

Few more bits being done on the EF.

Pic of the cage I'm having, not going crazy just something simple and as a result light. Going bolt in so I can re-shell if needed.



Also dropped the car to VDM Motorsport in Trowbridge to have the engine lowered as it was hitting the OEM bonnet. Hes also wiring in later MB6 civic clocks so all my speedo etc works and fitting an ECU I purchased which has a raised rev limit and lower VTEC.

[baleatoler180]

Really like this build! Looking to find a 4g civic or a crx myself at the moment. Bet its great on the track.

[slipngripross]

May 2, 2018 15:23:08 GMT baleatoler180 said:

Really like this build! Looking to find a 4g civic or a crx myself at the moment. Bet its great on the track.

Buy now whilst you can make prices are starting to go up even more. I know of a B18 CRX I sold last year that is for sale and one of the cleanest in the country.

[slipngripross]

Sorry progress has been a bit slow whilst I wait for parts however some stuff has happened.

VDM have finished with the car so tomorrow its off to the bodyshop, I have decided on Honda Frost White and will add the orange at a later date.



VDM did a really nice spacer for the engine and wired the EK clocks in whilst retaining the OEM surround, perfect for the race car.








Fibreglass front wings finally arrived but one is damaged so they are sending another. No excuse for using these other than they are a tad lighter and more readily available than steel wings.



Couple of gauges arrived from AJU Motorsport. AFR and Oil pressure just so I know the engine is safe more than anything.



Also my brakes have been approved in the first stage and I'm awaiting final design before they are made.

[slipngripross]

I'm gutted it can't be at Goodwood this weekend so we are bringing the EK, which brings me onto the fact that the engine in the EK, also a B18C4 has some tasty mods including Skunk 2 exhaust manifold, Skunk 2 stage 2 cams, skunk 2 valves and titanium valve springs, adjustable pulleys, AEM fuel reg and rail, 440cc injectors and a map bringing it to 197BHP at the wheels. We got the EK as a track car between me and the mrs but the agreement was I get to swap engine woohooo!! So I'm going to run the current engine for first test to make sure we are happy with everything else then swap the engines. Testing I hope is end of July at Combe then I'm keen to take the EF up the hill at the Gathering with the new engine beforemy first race the following weekend....fingers crossed.

[79cord]

If lowering the engine makes the sump too low I found "normal" Integra B18A&B had a shallower sump & pick-up than Vtec B18C. Not sure which sump more commonly available CR-V B20 might have received if interchangeable.
Obviously Honda might have been worried Vtec engines could consume more oil at higher revs...

EG/EK definately make for a more spacious engine bay with longer w/base ahead of firewall & added frt overhang.
Power output @ wheels sounds very impressive.

[slipngripross]

Cheers mate the clearance actually isn't too bad on the sump and being basically race car only shouldn't have any isssues

[slipngripross]

The car is currently at Cooks Autobody Repairs. The wings have been fitted along with splitter, roof bung and aero catches. Few filler bits and then they will start painting. Cage has been confirmed as ready for collection so will grab that this week ready for fitting soon.