Opel Kadett C

MikeLMR · August 21, 2006, 12:08:38 PM

an SA sump is a Mk1 (very early) Rx7 sump (I presume)

Trans tunnel probably needs to be higher as rotary boxes sit very high in the car as the crank exits the centre of the engine and not at the base as in a piston engine. The box in my 323 is quite high as my engine is sat over the steering linkage.

yoeddynz · August 21, 2006, 12:26:25 PM

ahhhhh. I see. didnt think about that. but over all the box is still fairly compact (well compared to the tall old zf one I had in my last chevette...)
I\'ve just asked on chevettes.com and yep - kadetts and chevettes are the same tunnels. So it might be out with the angle grinder then...

and moving onto sumps. Does a 12a sump fit a 13b ?

MikeLMR · August 21, 2006, 01:04:19 PM

no a 12a sump will not fit a 13b one, they are shorter and depending on the year the front covers are different where they meet the sump

yoeddynz · August 22, 2006, 12:57:31 AM

so its out with the grinder...
Armyofone - where exactly does the sump foul the cross member?
..and what did you do about the clutch- did you change pedal box to a hydraulic
clutch arrangement ?

ArmyOfOne · August 22, 2006, 11:34:27 AM

Well what I meant by SA was a first generation RX-7 oil sump. The reason I had to make the tunnel taller was that I am running a carburator setup and I was trying to get it as level as possible. Also I wanted to keep the driveshaft angle in check.

As to the clutch hydraulic cilinder... I used the stock pedal box but I modified it. I welded on a piece of steel to the top of the pedal, I then welded a box that holds the cilinder in the opposite direction than the stock RX-7, then I drilled a hole on the new metal on the pedal and installed a pin to actuate the master. I then ran my clutch hydraulic line through the firewall.

There is no getting around having to cut the firewall so just get used to the idea. You had asked where the sump will end up in relation to the crossmember, the sump ends up in front. I found out that MOROSO back in the USA makes a reversed sump with the actual sump at the rear, this could help bring the engine towards the rear and even lower in the frame. With that sump you could probably use the stock engine mounts but you will have to move the parking brake handle and fabricate a new transmission crossmember.

For me none of this matters anymore because I am building it up as a full racing chassis for this coming summer... can you say peripheral port nitrous?

keep the questions coming I will gladly help out. just keepinÂ´it real... real fast.

yoeddynz · August 22, 2006, 12:24:07 PM

cool- thats a simple mod for clutch. I was going to see if I could run the clutch cable in an \'s\' so it comes up towards the actuation lever and bolt a bracket to bell housing. But the cable will be to short i think (plus lots of friction..). Yours is a fine idea.
Is the rotary heavier then the 1.2 you took out?
alex

ArmyOfOne · August 29, 2006, 08:44:31 PM

Its a little heavier but not much. It the engine were moved about 10 cm further back the cars balance will be perfect.

yoeddynz · August 29, 2006, 09:12:08 PM

Using the first gen sump with its pan at the front where abouts does the pan sit? -does it sit behind the crossmember or above it?

I wonder if its possible to turn the sump around 180 degrees and modify the the pick up pipe. From what i remember the sump bolt pattern is evenly spaced.

Some aussies fit the engine above and in front of the cross member using a seperate engine crossmember. This leads to a very high and forwards weight- not what i want.

I\'m still trying to find a nice rust free chevette in the uk...

alex

yoeddynz · September 05, 2006, 01:45:44 AM

Hey there army of one..I now have a rusty rx7 with apparanty a good 12A and box etc. And I\'ve just bought a 12A to IDA manifold here in NZ. And today I just won an auction on a chevette HS rear axle-good for 200bhp and more or less bolts in.

So now all I need is a good chevette hatch. But i\'m looking....

Now for 24 hours of flying

ArmyOfOne · January 17, 2007, 03:43:15 PM

Well the money is in the bank and I can finally start building this beast. I will keep you guys posted.

As for fun on the Autobahn... lets just say that none of the local 911s or M3s will ever try to get in my way again. I topped the car out at 275 kph, 5th gear @ 9k RPM. Lots of fun.

yoeddynz · January 26, 2007, 10:11:54 PM

Awesome! good work. 275 kph! wicked.
I\'m gonna run the stock nikki carb for now on standard ports so I reckon maybe 135Bhp. So maybe 225-235 kph?

I love the look of kadetts- much nicer front than chevettes I think.
And left hand drive..you have much more room for a better exhaust.
very clean!