Forums Forums StuyMac: Honda Civic VTi - SiR Race car.

good work mate what next then

lookin good matey...

OOO carbon

Nice sticker aswell stu

whats next

Well, I have the following on order now:

6 Prong paddle clutch with Ali Flywheel
Twin Loop back box (To try and get the noise down)
OMP Cage
6 Point Harness
Coilovers

Ive also got a seat coming from an Impreza rally car.

As soon as the cage arrives, Ill strip the rest of the car, fit the seat and harness, in the mean time, Ill get the clutch kit, coilovers and exhaust fitted.

That really just leaves the Extinguisher and cut off as essentials, but Ill also be looking in to new, adjustable suspension arms, and some better brake pads for race use

coming along very quickly.

me likes it

iv heard a lot of good things about the twin loop systems, a few lads on the civic forums have fitted them and theyv said they are a lot quieter than Spoon N1 exhausts n stuff.

nice bit of carbon there as well lol.

nice motor mate

New Clutch and flywheel arrived yesterday



While the box is off, Im also looking at a higher ratio final drive. The new Integra Type R uses a 4.7, but Im maybe trying to get something even higher so I can shorten all the gears so they are better suited to track use. If the Box is coming off for the clutch, may as well burst it open and swap the final drive at the same time if I can find something suitable

Just found this:



Its a 4.928 - which may well suit my needs - just waiting on a price inc the shipping

ooo getting a bit technical for me, but looks very shiney

Looks like its starting to really come together mate good stuff!

Ive just found another final drive - a 4.785, so Im just debating which one to actually fit.

The currecnt ratios are as follows:

(All based on 8250rpm max and 195/55/15 tyres)

1st Gear 3.23:1 40.74MPH
2nd Gear 2.105:1 62.52MPH
3rd Gear 1.458:1 90.26MPH
4th Gear 1.107:1 118.88MPH
5th Gear 0.848:1 155.18MPH

Final Drive 4.4

The 4.785 offers:

1st Gear 3.23:1 37.46MPH
2nd Gear 2.105:1 57.49MPH
3rd Gear 1.458:1 83MPH
4th Gear 1.107:1 109.31MPH
5th Gear 0.848:1 142.7MPH

Final Drive 4.785

The 4.928 offers:

1st Gear 3.23:1 36.16MPH
2nd Gear 2.105:1 55.48MPH
3rd Gear 1.458:1 80.1MPH
4th Gear 1.107:1 105.5MPH
5th Gear 0.848:1 137.72MPH

Final Drive 4.928

Shortening your gearing, in effect increases the torque per gear, which gives accelaration. The car is never going to max out the std gears on a track (a doubt it even max out on a private runway), so I may as well trade some of the top speed off for acceleration, question is, how much to trade off, ie, go for the 4.785 or the 4.928.

The 4.928 will give greater acceleration, but will it ever max out and Ill be sitting on a limiter, or over revving the car for too long on the straights of some circuits

depends on the circuit surely stu...id be tempted to go with the 4.928 and give it a good thrashing on a open circuit...
surely its not that much hassle to have both 4.785 and a 4.928 set up in different boxes ready to go...and just switch them out as and when the circuit dictates..
the acceleration is what you want really as once your in front you can defend your line/position....
as for worrying about sitting on a limiter or over reving he engine...its a honda civic..they are bulletproof!
just mho!

TBH Im swaying to the 4.928, though once its in, it staying in!

The boxes are expensive - as are the final drives,(Mine is a very rare LSD one) and its a ball ache to get the box out. You ideally need to lower the front subframe to get it out which helps, but its by no means easy. Its also a very heavy box, and the reason for changing the final drive now is because Im fitting the clutch at the same time.

Price wise they are the same, and both will be much better than std - I guess I just want to make the most of what I spend on the final drive.

i see your logic..whats the worst that could happen..put it in and give the car a good thrashing and see what happens.

But Im sure there is a way of making the box easier to swap tho...bolt in sections of the subframe etc etc...if your gonna keep this little beastie a while prehaps it would be worth getting a second box with the 4.785 set up...surely while expensive to outlay...youd get your money back by selling it on if you werent using it!