Nyborg Garage CA18DET project.

[Nyborg Garage]

Hi.

This seems like a great forum, so i thought i should introduce myself, and my car/engine.

It all started when I got a piggnose s13 cheap, all it needed was an engine overhaul.

So the plan was to pull out the engine, and replace bearings, pistonrings, gaskets, and such. And then sell the car.

But then a friend of mine wanted to swap his T3-T04 for my stock t25 (he had a 1.5 liter honda with an "ebay kit").. I could not turn down that deal. The turbo itself was "free", but of course then i needed a new top mount manifold, ext wastegate, bigger injectors, stronger clutch, ECU tuning, FMIC, custom exhaust, and so on.

So then i desided to take it even further, and i milled the head for a C/R of about 9,4:1. I'm used to work on Hondas, and high compression, big cams, big turbo, and high revs is the way i like it Pluss i love E85 If course high comp pistons would be better, but I was on a tight budget. I also did not balance anything, og change the rod bolts, so I will not rev it to far yet (or?).

Since i milled the head so much (0,057") i also bought adjustable camgears. But the the timing marks was dead on, so that was not really necessary. But I am going to adjust them on the dyno to figure out what valve times workes best (most likely with a ca18det exhaust cam on the intake, and exhaust side).

For tuning I use the ostrich emulator and liveedit/romeditor. But I will uppgrade to NIStune later on.

On the first test run I blew the headgasket. I had a 5psi spring in the wastegate and no bleedvalve, but I had mounted the 60mm wastegate the wrong way, so it did not open much And I was to busy looking at the AFR, so I did not notice the boost climbing to 1.5bar + ~22psi of boost combined with old low octane fuel, high C/R, and stock igniton timing was not smart If I only had the patience to wait for my codriver and some E85

So at the moment I am waiting for the money to buy a cometic headgasket (coments?), ARP headstuds, and that new cheap lightweight flywheel (mostly becouse i have a strange bolt pattern on my flywheel, and both XTD and F1 racing clutches don't fit).

I also have plans for some betters cams later on, but I have not desided on what cams I think will suit my engine best. As for now I think the solid lifters are to expencive, so I might settle for 270, or 260 duration and 8.8mm lifte Tomei cams. Or maybe greddy 264 duration and 8,5mm lift. There's not much more to choose from, is there?

Well, here are the pics.

Both my cars, and the ca18det in parts

Milling the head (did this my self).

Big enough? :p

Starting to look good.

"emu"

Modified by Nyborg Garage at 5:16 AM 2/4/2009
Modified by Nyborg Garage at 5:20 AM 2/4/2009

[themadscientist]

If the flywheel won't fit it is not the crank's fault, the flywheel is wrong. You have the eight or six bolt crank?

What trim and A/R is the turbo?

Well if you watching the AFR while it was hitting 1.5 I assume the AFR was acceptable? That is a good thing I think, you know when you get a new head gasket you just need higher octane and/or to pull in some timing.

[ca18detgabby]

looks like a good start.

[float_6969]

Good start. I will say this about the Cometic HG. You had better make VERY sure that the head and block are PERFECTLY straight and level. You also might contact cometic about the RA (surface roughness) that they recommend for an iron block and aluminum head combo. I suspect that may be part of the cause for ppl having sealing problems with them.

[Nyborg Garage]

If the flywheel won't fit it is not the crank's fault, the flywheel is wrong. You have the eight or six bolt crank?

What trim and A/R is the turbo?

Well if you watching the AFR while it was hitting 1.5 I assume the AFR was acceptable? That is a good thing I think, you know when you get a new head gasket you just need higher octane and/or to pull in some timing.

Something must have come out the wrong way. The pressure plate (clutch) does not fit the flywheel. Think I have the 8 bolt crank, if that has anything to do with it. I friend of mine tried to get the XTD stage 3 clutch to fit a flywheel just like mine. He did that by drilling out a few holes, and removing two centering studs on the flytwheel. That did not go veary well

After I tried the XTD clutch i bought the F1 racing stage 3 clutch, and that looked ALOT like the same clutch as the XTD, only diffrent colour.

Then I bought a stage 1 or 2 (normal non-puck disc) clutch here in norway, and that one did fit perfect. And It did hold on the four 3.gear pulls with high boost, but i doubt it will hold up some drifting abuse.

Now I want to buy that new light flywheel, so that i can use the F1 racing stage 3 clutch I have, and other "ebay clutches" in the future.

Not realy sure about the turbos trim, but it is a normal china turbo. A/R 63 i think.

Yes, the AFR was rich, and stable (~10:1).

Before i got down to the main road to test the car i drove on some snow. And then it looked like the boost was stabel around 5-6psi, wich is what i had set the wastegate at. But with summertires on snow you don't get enough load to get the boost upp on such a big turbo with a "bad" tune. And also it's not so easy to watch the boost gauge when you are sideways in third gear on summer tires. lol

[Nyborg Garage]

looks like a good start.

Thanks. With E85 and a good dyno tune, I think it will turn out nice

[Nyborg Garage]

Good start. I will say this about the Cometic HG. You had better make VERY sure that the head and block are PERFECTLY straight and level. You also might contact cometic about the RA (surface roughness) that they recommend for an iron block and aluminum head combo. I suspect that may be part of the cause for ppl having sealing problems with them.

Thanks.

Yes, I read that about the cometic HG, butt still, thanks for the info. Did not know that they hade diffrent RA, I will check that out if i buy cometic.

Do you know any other brands i should check out? Tomei is just to expencive. I have thougt about oem nissan HG, but this will not be the last time the head is coming of, so a gasket that is re-usable would be better.

[sjbsuperman1425]

http://www.aa1car.com/library/ar996.htm^^i did find that talking about the RA on bimetal engines. not sure if there is a set RA or not, but it could be a good place to start?

[sjbsuperman1425]

I also have plans for some betters cams later on, but I have not desided on what cams I think will suit my engine best. As for now I think the solid lifters are to expencive, so I might settle for 270, or 260 duration and 8.8mm lifte Tomei cams. Or maybe greddy 264 duration and 8,5mm lift. There's not much more to choose from, is there?

Modified by Nyborg Garage at 5:16 AM 2/4/2009

Modified by Nyborg Garage at 5:20 AM 2/4/2009

i didn't think Tomei made Cams with that duration for hydraulic lifters?

[mbmbmb23]

i didn't think Tomei made Cams with that duration for hydraulic lifters?

From Tomei's website:

Lash IN 256 Degree 8.50mmLash IN 260 Degree 8.80mmLash IN 270 Degree 8.80mmLash EX 256 Degree 8.50mmLash EX 260 Degree 8.80mmLash EX 270 Degree 8.80mm

Solid IN 260 Degree 9.25mmSolid IN 260 Degree 10.25mmSolid IN 270 Degree 9.25mmSolid IN 270 Degree 10.25mmSolid EX 260 Degree 9.25mmSolid EX 260 Degree 10.25mmSolid EX 270 Degree 9.25mmSolid EX 270 Degree 10.25mm

[mbmbmb23]

As for now I think the solid lifters are to expencive, so........

http://cgi.ebay.com/ebaymotors...ories

Check that out.

[Nyborg Garage]

http://www.aa1car.com/library/ar996.htm^^i did find that talking about the RA on bimetal engines. not sure if there is a set RA or not, but it could be a good place to start?

Thanks, will check that out

[Nyborg Garage]

http://cgi.ebay.com/ebaymotors...ories

Check that out.

Thanks alot for the tip!

I will consider it, but it is still a bit expencive. $99 for the lifters, $88 for the freight, and then 25% tax on top of the parts and the freight.

But thanks again!