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Well i got a shot of the car with hood and you can see the turbo sticking out. This is kinda a temporary solution as i was hoping to have covered the turbos somehow. But with the hood and the car lines i am not sure how to cover them. Does it look trashy?
This is of the front. I'm offcentered in the pic but the driver side turbo does sit more inward to the cowl than the other but its not as bad as this pic shows
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Well i got a shot of the car with hood and you can see the turbo sticking out. This is kinda a temporary solution as i was hoping to have covered the turbos somehow. But with the hood and the car lines i am not sure how to cover them. Does it look trashy?
This is of the front. I'm offcentered in the pic but the driver side turbo does sit more inward to the cowl than the other but its not as bad as this pic shows
I guess it all depends on what kind of look you want.
4" cowl? Some of the lower cowl hoods extend more towards the fender, maybe you can angle down at like a 35-40 degree from the current 90 and join wherever that hits and still clear the turbo? That is if you want a hood without holes.
A pressure gauge is just that, a pressure gauge. If the temperature is different it does NOT mean that if the gauge reads 15psi its wrong because of the air being a different temperature. The gauge does not know and does not care what the temperature is. If a pressure gauge reads 15psi, that is exactly what it is... 15 psi.
A pressure gauge is just that, a pressure gauge. If the temperature is different it does NOT mean that if the gauge reads 15psi its wrong because of the air being a different temperature. The gauge does not know and does not care what the temperature is. If a pressure gauge reads 15psi, that is exactly what it is... 15 psi.
Yup. I get that, and have understood that the whole time. Therefore 15psi of cold air ≠ 15psi of warm air WHEN IT COMES TO MAKING HORSEPOWER.
Your just not getting what I mean when I say "its not a simple as, 15psi is 15psi"... you'll probably never get it. I will chock it up to miscommunication due to the interweb.
This will be my last response regarding this issue, as it isn't fair to Justin....
Quote:
Originally Posted by madmax
A pressure gauge is just that, a pressure gauge. If the temperature is different it does NOT mean that if the gauge reads 15psi its wrong because of the air being a different temperature. The gauge does not know and does not care what the temperature is. If a pressure gauge reads 15psi, that is exactly what it is... 15 psi.
That was exactly my point, madmax, however, reading the way I paraphrased I see how it was hard to decipher what I was getting at. The engine obviously doesn't know what size turbo is pressurizing the cylinders, as far as it's concerned, its being pressurized, with the result of 15-psi being 15-psi, that's all it knows. I want to make this clear for those who still don't grasp what it is that I am saying; putting aside the air temps issue (because today, intake temperatures can be reduced substantially, regardless of turbo size), the stock turbo at those psi levels is already well within it's EFFICIENCY RANGE with a stock engine, and swapping to a larger turbo, without changing anything (Intercooler size, working the heads. larger stall, etc.), the potentially "denser" air from the larger turbo will never be realized, it will simply fall on it's face. It is a complete waste, because the stocker is already supplying what the engine needs....
This whole argument started from the basis of swapping from a D1 procharger, to a F1 procharger, while keeping boost capped at 15-psi. This is why I was stating what I did, as the benefit of the F1 will never fully be realized, because the D1 is already well within it's efficiency range, and its keeping the cylinders pressurized, and if your going to step up to an F1, without making the appropriate changes necessary to take advantage of the additional air, well then, the power from 1 through 15-psi will not really change, because the D1 is already doing the job. Larger compressor wheels need to be compensated for, and the only way they will have an advantage over a smaller compressor wheel (at lower RPM's), is if you open everything up. The denser air thingy is a thing of the past, because guys here are running stock turbo's in the 50 degree temperature range, yes, the cold weather helps this happen, but it wasn't that much higher a few months earlier. Swapping, using the LC2 for an example, to say a T-49 from a stock turbo, without changing anything, won't gain much, if anything at those lower psi levels. The charge might be slighly more denser, but your not going to see anything in the 1/4 mile as a result of it. Now, swapping to a T-71 from the stocker, and the engine will fall on it's face without changing anything, it will only have the potential for more denser, and additional air....
.... and Dave, Paul is running a T-71 with an essentially stock short block (has a cam, but everything else is stock, and cast). The heads are stockers, but they are ported. He's running a T-71 turbo, with big Intercooler (you should remember his setup). He ran a best of 10.41 @ 127 with that turbo. he would be the first to tell you, that if he swapped to a smaller turbo, he would be in the 10.0 bracket, because the T-71 is out of its efficiency range, with the engine not being setup right to take advantage of it's flow. Right now, the T71 just has potentially more, and that potential is not being realized, yet.
I think it looks cool. Do you think the paint on the hood will crack up though?
My buddy says if the primer is not lifting due to heat, the paint shoudlnt either. HE paints for a living so i trust him. With the blankets on the turbos, it doesnt radiate that much heat. The down pipe however makes a ton of heat but they do sit abit below the hood and the hood is two layers of fiberglass so it should be more than fine
Only advantage to going to a larger turbo is to delay spool time to help traction if your blowing tires apart because the smaller turbo is coming on too strong.
Thats the only other hood i'd try to get to clear but i'm afraid its not tall enough. Its said to be 3" but on the cars i've seen it on, it doesnt look like a full 3"
First leme just say that I know NOTHING about turbos OR fiberglass, but, if you had someone good with fiberglass, how hard would it be to extend the hood out on either side. Not really cutting and of the hood that is there unless you wanted to, but just like.. either making a 90 degree arc with whatever radius on each side covering up the turbos. That could also make the front end perfectly balanced as long as the added stuff is equal radius on either side. I dont know how hard that would be so I may just be speaking impossibilities but /shrug. Of course a simple square extension on each side would work too.
anyone understand me? i feel like im speaking in circles
thermal coat he hot side in black also. and i think it looks bad *** as is man.
That was my ultimate plan but i just dont wanna tear it down right now to coat it. May beable to do that over december but I move in January so i'd like to keep the car together and running
I think if you want the turbo's covered up ... glass in each side of that cowel at a 45 to the side.
A good FbrGlass place should have no problems doing that.
I have that same hood on my car (Wide 3" cowel.) All my stuff fit under the stock hood but I wanted to do somthign different. That 3" cowel is nice. I'm not sure if your stuff will fit under it.. Your welcome to do some tuning and driving and come bolt it on your car. I drove mine home to the heated garage last night. It's not going anywhere till spring. Going over my list of winter stuff and getting ready for spring.
Leaving your turbo's exposed is kinda cool.. Just depends on the look your going for.
~Scott
__________________ 10.32@133mph on 93oct. through the mufflers on a Drag Radial Tire. with 17psi.
Hot Rod Drag week 09 "Quickest Six" award!
Yep... it's only a V6.
That was my ultimate plan but i just dont wanna tear it down right now to coat it. May beable to do that over december but I move in January so i'd like to keep the car together and running
I wish I was closer. I used to repair surfboards for a living and I could probably make some sick "turbo bulges" for your hood. I say just make some fiber glass bulges that cover the turbo. Form>Function!
hey great job on you iroc. actually im suprised but i love the turbo's stickin out looks like the car got muscle's stickin out the side of the cowl. do you know where i could fine a s/c for my 87 iroc 305/tpi? any suggested first upgrades? its going be my highschool car and my entire life car. hoping to keep up with new vettes on the quarter i dont wanna be losing. so im guessing your the fastest guy in town right! haha now go kill some of them pesky civics and a couple lambos while your at it!!!
corvettes and got crap on you!
Theres several imports here with as much power as me.... couple DSM's here that can ride out.. one traps 136+ one goes mid 9's at 154 i think... street cars
So i aint the fastest in town... but i should beable to hang with some of them. NO idea what it will do on race gas and 15-18psi, i'm hoping to out run most
looks and sounds good. I would do like someone here already said just make a buble that flows around each turbo as best you can. Car sounds great and seems to spool very fast. I got mine on the street about 2 months ago but am blowing through my converter real bad. I have a new one on its way and a fab 9" should be here in a week.
__________________ 89 iroc-z 12.7@111mph all motor 350 (old na setup) efi chrome zr-1 etc
now twin T-70 turbos, budget motor, 6-speed broke a shaft on 2nd pass 11.7@129mph
dart little M and a turbo 400 sitting in my garage fab 9" 3.0 gear http://community.webshots.com/user/mattb153
99 nbm Formula ws6 m6 g5x3 etc
looks and sounds good. I would do like someone here already said just make a buble that flows around each turbo as best you can. Car sounds great and seems to spool very fast. I got mine on the street about 2 months ago but am blowing through my converter real bad. I have a new one on its way and a fab 9" should be here in a week.
What converter did you get?
Anychance you will be able to make Pittburgh raceway for end of the year races the 24, 31st and maybe Nov if they go that long?
If I get my parts in time thats the goal. I normally go to Beaver springs its about an hour from me. I think pittsburg is about an hour and a half. I have been there a few times but never with my car.
I ordered a PTC converter they are really good and allot of guys are running them with great results.
I don't have a truck to pull my car so I plan to drive it to the Beaver and make some pump gas runs and drive home. Your track is nicer but the beaver should be a little faster with better elevation.
Let me know if you go to either place in the next few weeks, hopefully I can be there racing before they close for the year.
wow Orr... that SHlT IS SEXYYYY AS HELL! looking amazing. id leave the turbos in the open and get the hot sides of the turbo thermal coated! looks amazing... im super jealous btw
id race ya if i didnt already know how bad u would molest me
personally i think bulges for the hood outa fiberglass would take away from the swoop of the cowl. id leave it be bc its terrifyingly BADA$$
Didn't read through it all but you do realize those hard line adapters are for low pressure applications only right? The soft brass ferrule does not have enough bite in a steel line to seal against higher pressure, I certainly hope it won't leak on you. Swagelock makes some (expensive) hard line adapters that would definitely work, another option would be to use an flares, nuts & sleeves. Working with non seamless stock tubing however means you need a double flaring tool ($$$$)
ive used the summit hard line conversions on mine and im running the walbro255lph HIGH pressure intake pump and i have no leaks. how do the brass feruls not have enough bite?? they are used on brake systems and transmisson lines all the time. transmission lines see over 250psi of trans pressure!
how much Hp can a walbro255 lph high pressure pump supply anyway? will i have to upgrade it if i decide to run twin turbo T3's? making about 480hp on the NA 383 now... id figure 8psi and about 700 crank HP? will my walbro handle that?
depending on what you get, the pump kit was for 4th gen tank as its easier to install in the wider opening of the 4th gen tank. Also need modified fuel level sending unit because 4th gen style dont work. So the pump kit with modified level sending unit cost me about 700 bucks.. Fuel lines from there with regulator, filter, multiple fittings,etc was around 1000-1100 more. Wasnt cheap but you dont need to do what I did. Hook them up to stock hardlines will be fine enough
What that is crazy!!! I love the look, Not trashy but then again I got something myself that push that line...So if it is then IMHO....Do It.
Besides the turbos getting lost of fresh air I guess water would be an issue.
I would love to see you Fiber in plexi or something so you can still see them if you cover them, unless you really dont want to show them off in that case....
I'd have to agree with the hood look. I think it looks pretty nasty. I thought about doing something similar someday after seeing that 1100rwhp GNX online. Ive also seen drag cars that have the turbos setup that way and they mod their hoods with scoops for the turbo so its protected from the elements.
Anyways, looks slick.
__________________
1989 TRUE GTA
black on black
Check out my cardomain page for more pics and the story behind my car. http://www.cardomain.com/ride/2301007
omfg..............that thing is down right sick. no other way to describe it. i love extreme builds like yours. way to make us 3rd geners proud. please post strip times when you get them.
Orr, OMFG man...great work. That must / will be a blast of a toy to play with. Can't wait to read some track results. Keep in touch on the $59 work you're trying out, I'll have mine dialed in, nice and tight for sure this season.
Just read the entire build. Your car is bad to the bone. The car looks pretty mean with the turbos through the hood. Add some pics up, we are dying to see more!
Will do soon as i can get it out in nice weather. Tomorrow should be fun if the car stays running good. Track day so i'll have pics and vids hopefully of this thing running 10's again but I'm not sure how fast this car will be. I dont wanna claim ET's just yet
I will be there ! Pretty pumped up for it right now! For my car and yours!
__________________ [/size][/color]
76 Vega 498 BBC, AFR 325 heads, and a few other goodies.9.02 @ 151
93 Firebird, 7730 ECM, most other 3rd gen running gear, 406 afr's, T56, 11.0 N/A, 10.41 W/150 Shot.
14psi, street tune 
