Cefiro Crossmember Lowering Engine?

[bubba]

Saw mention of someone maybe using a Cefiro crossmember to lower the engine on an S13..

Is this true?

Would a Cefiro crossmember bolt up on an R32?

If it is true, what is the measured difference?

[GunmetaL]

Yes they will both bolt in

I have just bolted one into my s13 for an RB20 conversion. They sit lower than the R32 gst

[bubba]

Any idea how much lower?

[Butters]

I'm not convinced of that eh.

I havea laurel crossmember in my silvia and the rb20 sits pretty high.

I sat a r32 crossmember next to a cefiro one the other day and they looked identical.

I didn't get the tape measure on it so I can't say 100 % but i'd be surprised to find that they are different.

[s13_Skyline_inside]

if you want to lower your engine, why not just do some messurments and elongate the holes that bolt the mounts to the block?

[STATUS]

if you want to lower your engine, why not just do some messurments and elongate the holes that bolt the mounts to the block?

with a Rb26 the sump sits 2-3mm fom xmember so it would achive nothing. i reckon you would only get 3-4mm with a 25.

[1400r]

^ my 25 sump sits fairly high in the 32

looks to be close to 2-3cm of clearance in the middle above the crossmember

although Im not sure how the low you'd want the front of the sump to sit

[bubba]

Any more thought as to whether it does sit the engine lower?

GunMetaL seems to be the only one with first hand experience..

[r33_racer]

why not just lower the whole crossmember off the chassis?

[bubba]

^^ That's what my tuner suggested.. I didn't the sound of it.. have you done this before with no ill effects?

[s13_Skyline_inside]

only problem i could see with lowering the crossmeber from the chassis would be less thread in the chassis so mayby use longer bolts just the be safe, and you'd have to do somthing with the steering column connecting to the steering rack depending on how much you lowered it.

[STATUS]

^^ That's what my tuner suggested.. I didn't the sound of it.. have you done this before with no ill effects?

screws with suspension geometry, to get a decent ride height the lower arms and steering arms have to much angle in them... the roll centre goes sub terrenial and the bump steer is not correctable even with the largest offset tie rod ends.

[bubba]

screws with suspension geometry, to get a decent ride height the lower arms and steering arms have to much angle in them... the roll centre goes sub terrenial and the bump steer is not correctable even with the largest offset tie rod ends.

I had a feeling it would screw the geometry

[Butters]

so what did you do in your Uras car then ?

Just raise the bonnet, bonnet vents ?

[Wheezy]

so what did you do in your Uras car then ?

Just raise the bonnet, bonnet vents ?

Black magic and an angle grinder works wonders

[STATUS]

Black magic and an angle grinder works wonders

a few tricks, but actual bolt in is all off the shelf wrecker parts (i just grabbed a handful of shite i thought would work and had a play). i ended up using R32 x-member and mount brackets (R33 alloy wont work nicely) i then welded in a full front lower R32 rad support and castor rod brackets etc to get the best positioning of rad etc without modding firewall... a no no in drift regs. if i had the time i would have fitted the double wishbone setup too.

rumor has it from Bai (d1 drift fame) that the laurel and cefiro x-member drops engine by 20mm.... no-one had one that i could find (but i would laugh my ass off it the one i got is as it was in a pile of xmembers and ther was suposed to be one in there... i just couldnt find it) so i used what i belived was R32, our 26 sits lower than other conversions though for some reason. I cannot fit much anything thicker than a paddle pop stick between x-member and sump. Absolutely Zero chance of fitting a deeper sump though as it already sits low, if it wasnt alloy i would be worried.

[Butters]

i then welded in a full front lower R32 rad support and castor rod brackets etc to get the best positioning of rad etc without modding firewall.

Thats pretty cool, got any pics ?

Like I said I have the laurel x-member in my other silvia and it sits the engine pretty high, my 26 in my silvia seems to sit no different.

Yer I tried the R33 alloy mounts and even the R33 x-member as there was rumors that sat the engine lower as well, also easier to move the engine back. That was a disaster but.

Ended up back at r32 x-member and mounts.

[STATUS]

^^ i wll get some pics this we for you and list the exact parts i used. (via pm) i have sold the turbo kit and so forth off it so i will take pics (post here) after they are all removed it will be easier for you to see mounts etc

[bubba]

rumor has it from Bai (d1 drift fame) that the laurel and cefiro x-member drops engine by 20mm

I like the sound of that rumour, I'll probably just get a cefiro Xmember and see how it goes.

Any idea what the actual difference (structure wise) between a Cefiro and R32 Xmember is?

The only places I need to clear are the timing belt cover (barely touching) and the cold pipe going to the throttle body. Had to lose the stock crossover pipe as the stock bov was causing the passenger side of the bonnet (at the front) to sit up about 2-3". Used my mates custom crossover pipe which has an ARC bov round the corner just before the timing belt cover, it's clashing on the bov flange causing the bonnet to sit about 5-10mm too high on the passenger side at the front.