ARP studs

[drumma022]

I am looking for the thread that listed the specific part numbers for the ARP kit for the CA18DET? Anybody have any clue where i can find the exact info? thanks.

[alfred183]

http://www.nissaninfiniticlub....t=ARP

[drumma022]

yea, that thread was OLD... I am looking for updated info...

[boost_boy]

Hey Ray,

I have them sitting in a box in a my closet because they didn't fit without some type of modification to the head. The length was fine as was the thread pattern, but there is no room to get a standard socket in those tight crevices. I know this is off topic, but what's up with your motor?

[CA19DET]

i'm just machining the socket to fit in the head...

[drumma022]

My motor... heh... awaiting Tomei valve springs to be put in and checking the valve guides and sals... When pulling the head i only found 9 washers instead of 10. I may just have lost it inside the head, but that may have been the problem. I hope to get it to the dyno while i still have $$ left over

So KA studs work with the machining of the socket? What kind of torque specs do you anticipate with a 1mm head gasket?

[boost_boy]

Quote »i'm just machining the socket to fit in the head...[/quote] Have you tried it yet? Sounds easier than it is. My engine is assembled and concluded that it wouldn't be too wise to be massaging the lifter housings to fit a socket in there. So what I'm going to do is get back with the fols at ARP and see if they got something else less puzzling. That nut from ARP using like a 16mm socket which waaay to big to fit into the bolt spaces for the CA18DET.

[Xero]

can't you send in your CA studs, and get some made?

[boost_boy]

Quote »can't you send in your CA studs, and get some made?[/quote] I'll give them a call tomorrow to see what they can do for me.

[Xero]

you should let them know that there is a market, and that they should start selling a set of studs for the CA engine.

Are any of the studs different between the various CA series engines? if they're not, then I don't know why they don't carry one already, but maybe this'll be good for them if they were to start carrying them.

[boost_boy]

The only problem I had with their main studs is that the very last stud closest to the rear main seal and on the intake side of the motor would not let my oil pan close completely because of the way the oil pan is designed (Maybe different for RWD engines). But I beat the oil pan in that area with a hammer to dent it enough to allow the stud to clear the oil pan (even though it distorted the alignment for the bolt and holes to line-up). Even the head studs present a challenge towards the transmission side of the head with accessibility problems. When I call them tomorrow, I'm going to ask them if sending a stock headbolt will help them help us find the correct application for our motors.

Dee

[andrave]

I thought someone on this board was actually using ARP head and main studs at the moment, I recall a thread where they said they machined their SOCKETS to fit the HEAD, not the other way around, and they said they had to dent their oil pan to fit the main studs.

[boost_boy]

CA19DET was the one speaking of maching a socket to fit. I'm the one the one that has installed both, but could only use the main studs by denting the oil pan towards the rear. IF you look back a few posts, you'll see whereas I've asked the question if anyone has tried to machine a socket to fit through the crack. ARP providing a 16mm fastener nut to secure the head , but the CA18's head design prevent a socket with that much diameter to even squeeze through that space between the lifter banks. That hole will require a socket not to exceed (possibly) 12-14mm and even that's pushing it. The only other way would be to grind the the lifters' banks to accomodate the bigger socket and that my friend is a no-no! And since I'm using solid lifters and a radical set of cams, I need all the structural integrity I can get.

[Xero]

I think they should be able to manufacture a set of DET head studs, and a set of rod and cap studs too. I don't see why they can't measuer all the OE specs and make one that is OE fit, instead of one that "just works"

[boost_boy]

Quote »I think they should be able to manufacture a set of DET head studs[/quote] Keyword here is manufacture! If it's not SR20/B16A/B18C hot, their not going to manufacture crap nothing and unfortunately for our beloved CA series motors, it's one of the great ones that got seriously over looked by the U.S. import aftermarket industry.

[Nismo1182]

What about RB headbolts, didnt MadSci say in one thread that RB20/25 headbolts work?

[Spectre_240sx]

What do the tuners in Japan use? Maybe we could get Jspec to import some studs for us.

[andrave]

boost boy, where did you get your solid lifters, and for how much?I was going to run JUN 268/10.35 cams and was advised to go with solid lifters... is this solid advice?sorry to jack the thread a lil.

We need to find out what the cats in Japan are doing because there are certainly some CA's running around there with too much power for the stock bolts. Thing is, they are gonna cost twice as much as anything from the US right off the bat...But maybe if someone could send a sample in to ARP they could figure it out.

[boost_boy]

Quote »boost boy, where did you get your solid lifters, and for how much?[/quote] I got my lifters as a part of a package deal from a friend Malaysia. For a thousand dollars I got a big box of performance parts including adjustable cam gears, Aluminum Racing rods for a CA18DET, A bigger throttle body, copper headgasket for a CA18DET, cams, springs solid lifters and instructions on clearances.

[Xero]

We need to find out what the cats in Japan are doing because there are certainly some CA's running around there with too much power for the stock bolts.

they're probably running high-strength RB20/25 bolts, since they're the same,