S130Z Posted December 2, 2008 Share Posted December 2, 2008 Great pics! Does anyone know if I could run a 60mm TB in stock Turbo intake system, or do i need modifications? Also is it safe to have a stock 83 zxt motor run at 15 psi? You CAN put a 60mm TB on but you must have a way to adapt the tubo J-Tube to the larger body. And of course port the manny. You might as well install an intercooler if you do the TB. And running 15 psi with the stock injectors and no intercooler puts you at extreme risk of detonating. You could realy mess something up. Quote Link to comment Share on other sites More sharing options...
skib Posted December 2, 2008 Share Posted December 2, 2008 A stock turbo set up with no IC is good to about 10psi, I deff. would not run 15psi with out an IC. and the TB in itself isnt really much, its doing that in part with other mods that make the difference. Quote Link to comment Share on other sites More sharing options...
dave280zxt Posted December 2, 2008 Share Posted December 2, 2008 (edited) Great link.I'm in the process of adding this intake to my 82zxt. Do you think I should remove those dimples in each intake runner? Edited April 19, 2009 by Drax240z Quote Link to comment Share on other sites More sharing options...
dave280zxt Posted December 2, 2008 Share Posted December 2, 2008 oops,,,first posting. guess I did it wrong. anyways,,,should the bumps in the intake runners be removed? Quote Link to comment Share on other sites More sharing options...
S130Z Posted December 3, 2008 Share Posted December 3, 2008 oops,,,first posting. guess I did it wrong. anyways,,,should the bumps in the intake runners be removed? Running forced induction, and without porting the head, the dimples are not gonna make that much of a difference with the stock boost. Quote Link to comment Share on other sites More sharing options...
zbigtim Posted December 3, 2008 Author Share Posted December 3, 2008 With a front view of the linkage you can see how angled the linkage is at full throttle. Here it is closed. Do you think I should remove those dimples in each intake runner?I think if you are talking about these dimples, you may cut thru to the injector mounting holes. Quote Link to comment Share on other sites More sharing options...
Challenger Posted December 3, 2008 Share Posted December 3, 2008 I think the n42 intake has the largest dimples, most of the other intakes are hardly noticeable... Just a little fact... Quote Link to comment Share on other sites More sharing options...
dave280zxt Posted December 3, 2008 Share Posted December 3, 2008 ok,guess the dimples stay. thanks Quote Link to comment Share on other sites More sharing options...
dave280zxt Posted December 3, 2008 Share Posted December 3, 2008 Since we're on the topic of the N42,,,what about a pov? They didn't come with them,do I need one for my turbo? There's that plug in the end of the intake,add one there? Quote Link to comment Share on other sites More sharing options...
S130Z Posted December 3, 2008 Share Posted December 3, 2008 Mine never came this close to hitting the body as yours does here. I think Its because I used a thicker space. Props on the wooden one anyway. I bet that seals pretty well. I made mine out of *EDIT*1.5" Lexan glass. But I do have the simmilar angle linkage as in the other pictures. Your not alone. Also I had the linkage arm on the TB farther down the shaft. Now I have a big post sticking off the side of the TB. Quote Link to comment Share on other sites More sharing options...
TrumpetRhapsody Posted December 3, 2008 Share Posted December 3, 2008 Looks like Dave did a much better job at taking out material than I did. I'll call this my "Stage 1" port, haha. I just wanted to smooth the transition. The little dremel was getting pretty hot. I need to get a cutting bit for the die grinder when I decide to port it further. Quote Link to comment Share on other sites More sharing options...
zbigtim Posted December 4, 2008 Author Share Posted December 4, 2008 Mine never came this close to hitting the body as yours does here. I think Its because I used a thicker space. Props on the wooden one anyway. I bet that seals pretty well. I made mine out of *EDIT*1.5" Lexan glass. My fancy, high end, plywood is 3/4" thick. From what I found by searching, this is what I found everyone using (I'm talking about the thickness, not the material). My buddy that works for Chrysler is bringing me a piece of 3/4" nylon. You guys don't think it will melt do ya? Quote Link to comment Share on other sites More sharing options...
S130Z Posted December 4, 2008 Share Posted December 4, 2008 Nylon tends to be soft in some applications. What hardness would you use for this (I assume at least a 90a)? And there are so many types of Nylon available that its hard to say the temperature threshold. On a side note, I think my spaceer might be less than what I cliamed it is. I am going to measure it tomarrow. Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted December 4, 2008 Administrators Share Posted December 4, 2008 ...I think if you are talking about these dimples, you may cut thru to the injector mounting holes. Yes, most of the time when removing the dimples you will find the mounting holes, but that is OK. Some feel the injector screws themselves when tight seal pretty good. Personally I prefer to seal them with an Epoxy, usually JB Weld. All of the manifolds that I have customized, (several of them), I removed those runner dimples and use JB weld in the runner to fill the mounting holes that do get exposed. I just work a little bit into the hole keeping the manifold upright the entire time, (don’t want the JB Weld to run up the threads…), then just use a small piece of paper to hold the JB in the hole till it has set up. Once it has set up, using the die grinder, carve the paper/excess JB-Weld blending it into the runner. The threads in the mounting hole hold the JB weld giving a 100% positive seal. I have pics of inside the runners somewhere but cant find them... At any rate, here is a sampling of a few of the intakes I have done using that method; Quote Link to comment Share on other sites More sharing options...
S130Z Posted December 4, 2008 Share Posted December 4, 2008 Very nice Paul. Might I ask why the motor in the 1st engine bay pic is so far recessed into the firewall? I noticed it is a tubo motor and don't know if the application intended called for that. Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted December 4, 2008 Administrators Share Posted December 4, 2008 Very nice Paul. Might I ask why the motor in the 1st engine bay pic is so far recessed into the firewall? I noticed it is a tubo motor and don't know if the application intended called for that. Thank you. That "was" a custom autocross/street project Ron Tyler was building for himself, low polar moment. He had me customize the N-42 manifold. He has since gone away from factory intakes and builds his own from scratch. That car currently is sitting behind the shop, hopefully to be resurrected in the future. The Turbo project was scrapped, though just recently another version resurrected, this time in his current 260-Z driver... Quote Link to comment Share on other sites More sharing options...
S130Z Posted December 4, 2008 Share Posted December 4, 2008 So I'm guessing the motor was recessed for a better weight distribution. Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted December 4, 2008 Administrators Share Posted December 4, 2008 So I'm guessing the motor was recessed for a better weight distribution. No so much "better" as a different approach to optimizing certain handling characteristics. During transitional maneuvers such as driving a slalom, the polar-moment, or Dumb-bell effect is reduced by moving the vehicles components closer to the point of rotation/pivot, in this case, the component with the most mass, the engine and trans! Courtesy of Autozine.org These cars are already essentially 50-50 weight distribution. This mod gives more of a rear weight bias along with reducing the polar moment. Depending on the application, some feel a rearward wight bias is more ideal, (think rear engine Porsche), others feel 50-50 is more ideal. Again, depends on the application and intended use, driver, etc. Everything is a compromise, you trade one attribute for another. This topic should really be discussed in another thread. Sorry for the thread-jack fellas. Quote Link to comment Share on other sites More sharing options...
dave280zxt Posted December 4, 2008 Share Posted December 4, 2008 Gorgeous intakes Paul! nice. so ,,,now I'm back to thinking I WILL remove those dimples. Quote Link to comment Share on other sites More sharing options...
bco6 Posted December 4, 2008 Share Posted December 4, 2008 You CAN put a 60mm TB on but you must have a way to adapt the tubo J-Tube to the larger body. And of course port the manny. You might as well install an intercooler if you do the TB. And running 15 psi with the stock injectors and no intercooler puts you at extreme risk of detonating. You could realy mess something up. Thanks for the advice! I am in the process of buying a wideband to see where in am at. An intercooler is in the works. Quote Link to comment Share on other sites More sharing options...
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