72240z Posted December 30, 2009 Report Share Posted December 30, 2009 Well extreme heat fatigue aside it also traps condensation every time the engine is run then turned off to let sit which on bare metal is murder. I'm just saying I dont think wrap is wrong or bad it jsut has to be used properly. Like thermally coating the mani/header prior etc.... I honestly think they didn't care, it was a get it running build that they didn't plan to have in there long so they said fuck it we have heat wrap lets use it lol. Sorry if my assumption is wrong. Not knocking the post or effort to help either just think its too extreme. It like a lot of things can be good or bad depending on how it's used. Quote Link to comment
XeroX Posted December 30, 2009 Report Share Posted December 30, 2009 I would not ever run an intercooler on a draw through. The intercooler would be full of mixed fuel and air and under boost pressure. If the engine ever back fired it would blow the front end of the car off. 7 PSI is about 50% more air. If a stock L20B makes about 90 RWHP then in theory a 50% increase in power would net you 135 RWHP. About 157 HP at the crank. This makes total sense regarding the IC. Didnt even think about that! That could make for a very interesting engine fire/decent explosion haha. Kait/Sean +1 on Wide band and a decent pyrometer! If your looking for a good "ona budget" Pyrometer and boost guage, check out the GlowShift guages. I have their boost, Oil Pressure, and EGT guage. The boost guage is mechanical but the Oil pressure is electronic. I got the whole setup NEW for about 120-130 shipped or something wich is pretty damn cheap compared to anything else... They have worked in my maxima for almost a year, they have all sorts of different styles to pick too...Sure beats paying 3 times as much for other guages...god forbid the quality is better but these WORK...thats all that matters to me haha Quote Link to comment
XeroX Posted December 30, 2009 Report Share Posted December 30, 2009 Well extreme heat fatigue aside it also traps condensation every time the engine is run then turned off to let sit which on bare metal is murder. I'm just saying I dont think wrap is wrong or bad it jsut has to be used properly. Like thermally coating the mani/header prior etc....I honestly think they didn't care, it was a get it running build that they didn't plan to have in there long so they said fuck it we have heat wrap lets use it lol. Sorry if my assumption is wrong. Not knocking the post or effort to help either just think its too extreme. It like a lot of things can be good or bad depending on how it's used. TOTALY agree, in most cases this is the best most people can do. exhaust wrap is expensive on its own but having piping coated isnt any cheaper. I have a Rear mounted turbo setup on my maxima, so basically i had to wrap my exaust from the headers ALLL the way to the back of the car were my turbo is. 100' roll and some extra is what i used just for the exaust piping down from the header to turbo haha...You can count me out of paying someone to ceramic coat that much piping, hence why i went with the wrap... the best thing i could advise doing is putting on a nice coat of high temp paint on whatever your wrapping....this def helps a bit. In regards to cracking your piping, meh...this happened to me on my Y pipe due to the fact the pipe was previously used on another supercharger setup and the pipe itself is rather old and already somewhat brittle, AND because when i wrapped it, i guess i didnt evenly wrap the secion on a bend (where it cracked). The key is basically wrapping as EVENLY as possible, if you leave some piping exposed or not "as" wrapped, you can bet its probably going to crack there...As long as you take your time and get the exaust wrap wet and wrap it TIGHT everyhing should be fine.. Another alternative that i saw when i was buying my wrap at Tognottis was this "Header wrap" stuff that kinda looks like sheats of dynamat but its for your headers...you might want to look into that if you think it will work better. I have no experience with it so i cant really tell you if it will work for this kinda setup...Im not really sure if it does the same thing as exaust wrap either to be honest...i just saw it on the shelf and it caught my eye... Quote Link to comment
WagDatto Posted December 30, 2009 Report Share Posted December 30, 2009 The exhaust wrap we have is either 1.5" or 2" fiberglass black wrap. The more overlap you have with the wrap, the hotter it stays inside the wrap. We'll be overlapping about 1/4" or so, which is on the light side. It will be cleaned up and painted with high temp paint prior to wrapping to keep it from rusting too badly. The idea is just to cool down the master a little, not to keep the thing from getting warm. A lot of the problem with exhaust wrap is installation error, not prepping the metal properly, or thin-walled metal to begin with. Ebay turbo manifolds will crack over time with or without the wrap, so people who do wrap them just make the process quicker. This is decent gauge steel in good shape. Just needs a wire wheel, paint and wrap! Quote Link to comment
Yakuza Posted December 30, 2009 Report Share Posted December 30, 2009 why not just build something around the master??? Quote Link to comment
WagDatto Posted December 31, 2009 Report Share Posted December 31, 2009 why not just build something around the master??? The issue is that we have header wrap. We don't have sheet metal. The downpipe still needs to be bolted up. There won't be any harm done from running a wrap on a small section of down pipe with little overlap. Quote Link to comment
72240z Posted December 31, 2009 Report Share Posted December 31, 2009 The issue is that we have header wrap. We don't have sheet metal. The downpipe still needs to be bolted up. There won't be any harm done from running a wrap on a small section of down pipe with little overlap. There is also the difference in that the wrap will lower over all under hood temps where as a shield would just block the MS. Quote Link to comment
WagDatto Posted December 31, 2009 Report Share Posted December 31, 2009 Word. And especially for a non-intercooled setup, that could prove to be quite helpful! Also, it looks like the hood might need some persuading for it to fit properly with aftermarket motor mounts. The hole that's already there might be getting opened up more and covered with some sort of scoop. Win! Quote Link to comment
JDM510 Posted December 31, 2009 Report Share Posted December 31, 2009 hell yeah scoops and blast pipes build a boso 2dr to match the goon!!!! Quote Link to comment
XeroX Posted December 31, 2009 Report Share Posted December 31, 2009 Word. And especially for a non-intercooled setup, that could prove to be quite helpful! Also, it looks like the hood might need some persuading for it to fit properly with aftermarket motor mounts. The hole that's already there might be getting opened up more and covered with some sort of scoop. Win! Not to sound like a broken record but this is what i was talking about, i think this is what i saw at Tognottis last time i went to buy my 10000' roll of wrap. http://www.jegs.com/p/Thermo-Tec/Thermo-Tec-Header-Manifold-Blankets/746454/10002/-1 I have been curious to try this myself on a car, and to be honest the way that it looks doesn’t look like it will hold in moisture like the wrap would…Maybe someone here has experience with this type of header “insulation”. But to me it looks like it would work for what you want it to do, and at the same time prevent rust on your precious turbo header! Maybe I am wrong, but its worth looking into unless you already bought the wrap….Like I said they have the same type of thing where they sell the wrap here in sac at Tognottis. L series Turbo headers are few and far between, and regardless of what you plan on doing with this motor in the long haul, IMO it would be worth looking into keeping it safe…Afterall its probably the most valuable part of the whole setup… Quote Link to comment
WagDatto Posted December 31, 2009 Report Share Posted December 31, 2009 We already have the wrap. It's left over from when we wrapped the L18 exhaust manifold. It'll do the job. We won't need to buy anything else. For the win. Kait doesn't like Boso cars. She says they're dumb. But she likes my car. It's not full boso yet. She'll hate it when I'm done with it! :D Quote Link to comment
XeroX Posted December 31, 2009 Report Share Posted December 31, 2009 We already have the wrap. It's left over from when we wrapped the L18 exhaust manifold. It'll do the job. We won't need to buy anything else. For the win. Kait doesn't like Boso cars. She says they're dumb. But she likes my car. It's not full boso yet. She'll hate it when I'm done with it! :D FINE! lol Well let me know when you go wrap so I can bring over my “I am T-Pain” iphone app and wrap with you… Showtayyyy :harhar: Quote Link to comment
SubwayGUY4 Posted January 2, 2010 Report Share Posted January 2, 2010 not to really thread jack or anything but did you want that diff that came with the motor? Quote Link to comment
71ka510 Posted January 3, 2010 Report Share Posted January 3, 2010 Drive it yet? Lol Quote Link to comment
WagDatto Posted January 3, 2010 Report Share Posted January 3, 2010 WE WANT UPDATES!! I WANT A RUNNING VIDEO!! Text me today, keep me updated on progress, and I'll keep the Ratsuners happy while I'm bored at work!! Quote Link to comment
DISLEXICDIME Posted January 3, 2010 Report Share Posted January 3, 2010 kait did you guys get the fuel system with the engine ? Quote Link to comment
WagDatto Posted January 4, 2010 Report Share Posted January 4, 2010 kait did you guys get the fuel system with the engine ? We're ditching the mechanical setup, since she already got a fuel pump blockoff plate and an electric pump for the L18... Why not upgrade while we've got the parts? Quote Link to comment
DISLEXICDIME Posted January 4, 2010 Report Share Posted January 4, 2010 We're ditching the mechanical setup, since she already got a fuel pump blockoff plate and an electric pump for the L18... Why not upgrade while we've got the parts? was it just a stock fuel pump with a regulator ? Quote Link to comment
Skib Posted January 4, 2010 Report Share Posted January 4, 2010 WE WANT UPDATES!! I WANT A RUNNING VIDEO!! yes! (that ones for you mike) Quote Link to comment
WagDatto Posted January 4, 2010 Report Share Posted January 4, 2010 was it just a stock fuel pump with a regulator ? It was just a stock fuel pump. I don't think there was a FPR, but have no clue. Electric should regulate itself and the carb should be able to do its thing as well. Hopefully all the "shoulds" work out!! Quote Link to comment
DISLEXICDIME Posted January 4, 2010 Report Share Posted January 4, 2010 fuel pressure should stay 3.5 pounds above boost pressure you should get a good regulator and fuel gauge Quote Link to comment
KA-Kait Posted January 7, 2010 Author Report Share Posted January 7, 2010 So there's not a big update. but i felt the need to tell ya that I did complete SOME stuff. minor...things. My mirrors are but on. brakelines on. everything is..well good to go I just need this baby to be wired! let's hope it happens this weekend *crosses fingers* Soooo close to running. I feel like Im gonna burst. haha WagDatto has some pictures of me sitting in the car, so when he's back from Vaca maybe he'll post em. either way, YAY! Quote Link to comment
NorCalDime Posted January 7, 2010 Report Share Posted January 7, 2010 I thought it was getting wired last weekend!!!! Get that beezy on the road beezy! Quote Link to comment
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