4th of July CA18DET fireworks/eye candy

[boost_boy]

Most of you already know that I have a decent amount of experience with the CA18 motor. And with that said, I think it would only be fair that I move past my R&D stages and come back stronger in the power and durability areas. I've been using my fiance's little sentra as a prototype and test bed and am proud to say that after a couple of months of down time, I will be resurrecting this puppy near or on the 4th of July.

Thsi car now sports Tomei 270 cams in which I've traded my HKS 264s with Jon (slw240sx). I'm very sure that he'll get the kick he needs out of those cams because I got the kick as well. I'm also sporting some unidentified racing double valve springs for high rpm support. The head has been redone with new valve guides, a 3 angle valve job and a mirror finished surface, but unfortunately it was not ported and polished like I originally intended for it to be.

It will also sport a heavily treated Nismo 1.2mm headgasket, ARP head studs, CP pistons treated and coated, re-shotpeened rods, new rod bearings, old mains (in perfect shape after 3 years of abuse) old oil pump, new water pump, new timing belt, new camshaft seals and new vlave cover gaskets and half moons.

Old school equiment is MSD DIS-2, SDS efi standalone, MSD 72 lb/hr injectors, custome T3/T04E with upgraded 60-1 front wheel and housing and .48 rear housing for quick spoolability, custom log manifold with HKS 40mm wastegate attached, blitz super sound bov on the hot side, Greddy Type R BOV on the cool side, custom intercooler, 3 inch exhaust with magnaflow muffler in the middle and blitz NUR spec sending out the noise.

This car also sprts a custom 3 gauge A-pillar, custom instrument cluster, Nardi JDM steering wheel, power steering, A/C, a custom gearbox with custom axles, 99 Sentra Se gunmetal wheels, NX2000 big brakes, custom rear disc brake set-up, KYB struts, intrax springs, rear mounted battery, etc, etc, etc..

So, without further a due, here's more fruits of my labor:



The old valve springs you see here are now in the garbage can.





Treated metal head gasket! Oh, it won't leak if it wanted to.









Head and block is sealed tighter than ft. knox.

And the rest is to be continued.

Dee

[GoofyATX240]

Looking great man.

[NeedCAforS13]

damn...i need money so I can do fun stuffs like that:(

looks awesome Dee! now bring it up here and take me for a spin:)

Sean

[r34 gtr]

that is friggin sweet. im so jealous. ive gotta do that to my head as well though as my dad and i suspect that the guides and seals are shot. cylinders 1, 2 and 3 are perfect, #4 is just gone. looks like i have a fungus growing on the valves.

oh, and sean, i dont have the money for that yet i manage to do it anyway. you should just be like me.

- tim

[r34 gtr]

dee, and whats the fastest you could get me one of those nismo head gaskets? i'd rather not spend that much but i guess i have to. i wanted to get it back together this weekend but if i could shoot for next weekend it would be wonderful. thanks!

- tim

[Rookie_ca18]

Quote »looks awesome Dee! now bring it up here and take me for a spin[/quote]

Damnit Sean... I call 'shot-gun':pface Dee your girl is gonna have the fastest sentra in miami man . Congrats to you looks awsome...but seriously when can I get a ride in her im only in ft. lauderdale:icesangel

[boost_boy]

Tim,

I think at the soonest 2 weeks. I've just received funds from another member and am going to place the order here very soon, so if you want in, get in while the getting is good.

Dee

[boost_boy]

Quote »Damnit Sean... I call 'shot-gun' Dee your girl is gonna have the fastest sentra in miami man . Congrats to you looks awsome...but seriously when can I get a ride in her im only in ft. lauderdale[/quote] Everyone can get a ride and trust me, it will be well and worth it. This will be a big boost car seeing as much as 30psi because that's what I built it to withstand.. She will pilot her own car on track days, but I'll do the shake-down testing and tuning.

Dee

[boost_boy]

Oh yeah, I think it will be the fastest CA powered B12 sentra in the world.

Dee

[r34 gtr]

ok dee, ive had enough. ill go ahead and order a head gasket from you. let me know where to paypal you the money - if i can send you money that way. thanks!

- tim

[cortina-mk1]

hey dee what is the sealer you are using on your head gasket?

[boost_boy]

Permatex super sealer 300.

Dee

[buffy]

a couple of questions Dee

1. Why are you using 2 dump valves? Is there any benefit from this?

2. Would you recomend I use this permatex stuff on my gasket? can you send me some with it if you think I should

[boost_boy]

Quote »1. Why are you using 2 dump valves? Is there any benefit from this?[/quote] I use it more for a tad bit of sophistication and function. I have the blitz super sound on the hot side of the intercooler because it is a proven unit and will dump excess boost pressure if there's any to be dumped without compromising boost loost under high boost applications. I use the Greddy Type R on the cool side because of it's efficiency and it's ability to also dump excess without compromising positive high boost pressures. Both together kinda cleans up after one another, keeps my turbo spooling, looks kinda cool, and also makes a nasty sound when they blow-off together.

Quote »Would you recomend I use this permatex stuff on my gasket? can you send me some with it if you think I should [/quote] Yes, I do and I will include some in there for you. I use it to make the perfect seal. Metals are porous, so the sealer fills in the blanks while providing a durable adhesive between metal, aluminum, iron and alloy parts.

Dee

[buffy]

Yes, I do and I will include some in there for you. I use it to make the perfect seal. Metals are porous, so the sealer fills in the blanks while providing a durable adhesive between metal, aluminum, iron and alloy parts.

Dee

Thanks Dee

[boost_boy]

No Problem.......

[boost_boy]

Well, I got everything assembled, fired the little tramp up and she had a miss that you can't ignore. I ran a compression tests on each cylinder and all were around 150psi, except for the #4 cylinder; the tramp had no compression. So I tossed in a couple of ounces of oil and still no compression. Check the compression again and it jumped up to 120psi. Checked it again to make sure a final time and compression was back to "0". Ran the engine with the compression tester in the #4 cylinder and the compression needle wouldn't jump until the idle fell below 500 rpm. I have a clue as to what it might be, I won't know until I pull it apart this evening. Oh well, $hiZ-nit happens.

Dee

[Drill_Sergeant]

i miss my ca

[silkk]

ohsofastsentra

[boost_boy]

Quote »ohsofastsentra[/quote] The plan was to make it just that!. Now it's being an oh-so pain in the ayess!:D Got my 4.5 hours of sleep, so now it's time to begin the teardown. I'm hoping it's not those rings that looked kinda frail. I'd be pretty pissed, but I don't see a reason as to wh they should break. Maybe the rings floated around and lined-up? Be back around 7ish with my findings.

Dee

[boost_boy]

Eye candy my a$$! More like a punch in the face and a nasty insult to my ability. Well, I found out why the #4 cylinder had a nasty miss and was taking on oil. You guys be the judge and tell me what you think happened and then I'll conclude with my skillfully calculated hypothesis and off to my machinist tomorrow for clarification. BTW, these were Rays cams, then Jon's cams in which he traded with me and looky what I got:

I knew something was wrong when I put the bearing caps on, but I couldn't quite place it. I noticed the crank turned a little too freely.

This picture shows that the cylinder as cleans as it was when it came from the machine shop. Cylinder never fired which told me this cam was cracked all the while. My car smoked at idle which explained why Ray's CA smoked.

Another view of the head from the bottom which clearly shows a clean/carbonless combustion chamber.

Pulled pistons 1 and the troubled #4 for inspection and clarification on the issue with this cylinder and the pistons look brand new.

Here's the upper assembly getting inspected.

It sucks, but I'll deal with Jon to see what the deal is here.

Dee

[NeedCAforS13]

ouch:( that sucks dee...

Sean

[GoofyATX240]

Damn bro that blows donkey d!ck. Hopefully you get some replacements soon man.

P.S. Check your email tonight.

[boost_boy]

Quote »ouch that sucks dee[/quote] Now I know how you felt when you got that crappy CA. This thing is now in my way and I'm sick and tired of tearing it down. I did the trade in good faith, but this is waaaaaay too much for me.

Dee

[boost_boy]

Quote »Damn bro that blows donkey d!ck. Hopefully you get some replacements soon man.[/quote] You think Fighting with this car has made me very leary at work and that was my reward for hard work. My phone is on, so call if you want, even though I'm sleepy as hell. I even forgot my girl's B-day because of this crap, so I'm sensitive right now.

Dee

[GoofyATX240]

OOO damn in the dog house huh.. Ill call in a second then.

[boost_boy]

Quote »OOO damn in the dog house huh[/quote] That's a nice place to be right now, but I think I'm hanging out near the dump for that over sight:( .

Dee

[GoofyATX240]

Damn man... Well turn on your phone. This damn guy ahha.

[cortina-mk1]

so were those cams welded and ground? dee ?as i have never heard of the brands b4

[Myetball]

It all looked so good up until the pic of the two piece camshaft. It could have been worse, at least your valves aren't bent and your piston is intact.

Hope to see it up and running soon.