Hey gents,
What are your your'alls opinions of the best intakes out there?:confused:

I just installed a new 4 inch exhaust system w/ 3 inch downpipe from warpspeed performance on my 93' 6.5 and i want to be able to hear my turbo spool. What would you guys recommend? Thanks:)

It's ok to use the stock airbox, just take the snorkel out of the fenderwell. get a reuable filter or not, I don't think it really makes a difference, except the aftermarket unit will pass more silicates.

The problem with coldair intakes is they should be made of an insulative material as metal will pick up the heat of the turbo and make it a hot air intake.

What do you know about aFe's Magnum Force intakes with an inverted cone?

My new exhaust (no cat or muffler) is loud but i want it louder if possible:rolleyes:

-so taking out the OEM snorkel will help?

The air intake from SSDiesel is rubber. I installed mine and love it. Seems to make more power, although I had no way to test or prove it. The turbo seems to respond a little better and the sound is awesome. I have considered building an isolation box around it, but thus far have not, I don't know that it is actually necessary. It does ride a little close to the battery however, and I think I may relocate the battery a little further to the front of the truck, I think I have an inch or so of room.

Yes, the OEM snorkel is quite restictive.
Don't know about the AFE can you link to it.

I have looked at buying ssdiesel's but the hot air from the engine worries me a lot. Isn't it just sucking hot air because it looks like the cone is not centered by the old airbox hole cut in the fender?

Also, Does anyone else know or have experience with ssdiesel's intakes?

I have the SSdiesel intake.. I make a simple baffle first out of alum but found that it did transfer heat from the turbo so I made another one out of fiberglass and now the box is cool to the touch. I didn't notice any difference with the baffle on or off. My Pyro shows the same temp with it on or off so I don't know if it's nessasary.

I have looked at buying ssdiesel's but the hot air from the engine worries me a lot. Isn't it just sucking hot air because it looks like the cone is not centered by the old airbox hole cut in the fender?

Also, Does anyone else know or have experience with ssdiesel's intakes?

I can't imagine that it is much hotter than a metal intake tube with a filter that only has a piece of plastic seperating it from the engine heat. I do not have an intake air temp gauge, but have considered one to test just this sort of thing. All I know is that she runs better now that the airbox is gone.

That and I have gotten to the point where I trust Walt and he swears that the difference in IAT is minimal. Just my 2 cents.

so the ssdiesel may indeed be a good buy. Hmm, I was just kind of skeptical because of the low price but if you guys think its that good then i may try it.


One thing though...Does anyone know where i can buy a baffle or shield that is fiberglass or plastice to protect the intake from the engine heat?

Any good enhanced powertrain scanner will read IAT's from the PCM.

QM, could the IAT signal be modified for an advantage. What does the PCM do if the IAT is cold or hot? Does it modify fuel quantity or injection timing, both/niether?

I built my own air intake a few months ago very similair to SS diesels, in fact mine looked better, anyhow, I put the origianl setup back on after 2 days because my IAT and Pyro skyrocketed. Maybe because Im in az and my underhood temps are high even in winter. It sounded sweet and made a difference in performance when my truck was cold, but when it warmed up was a different story. Unless someone can come up with some type of intake that pulls COLD air from the front of the vehical....I am leary of them and will stick to the factory box and K&N.

Any one in my area have a scanner to check IATs? If so we can compare results and post them here for everyone. I know at least one person here in town that is running a stock intake to compare against.

Be interesting to see what the IAT is inside a air box fabrication. Maybe I ll try it out on mine. I have to finish my box a little more. Maybe try putting a few along the way to see the temperature change. I have an indea listed under MDT intake. So if you guygs have some input let me know. I am open to suggestions and any help/ideas. I ll draw a picture to better explain myself later tonight.

While moving IAT's just before the stock box are ambient or within 1 -2 degree's, i tested. I highly doubt its much warmer in the box unless your sitting still idling and you don't need more power then.

I have what may prove to be a stupid question, but here goes anyway. My SSDiesel intake setup makes the actual filter sit way to the front of the compartment, right behind the battery. Would there be any benefit to making a hole there that leads out in to the fender (like the orignal snorkel hole) then isolating the filter with a fabricated "air dam"?

has anyone tried a heat extractor hood? do they actually work or more for show? or would in not help the IAT enuph to matter?

strych919: I have a cowl induction hood, and I don't think it would have any affect of IAT unless you got REAL creative and made a airbox to use the cowl as the air intake. I did however notice a significant drop in engine temp while towing in the summer. In similar conditions (34Deg Celcius) on the same road went from 225degF with stock hood to around 200 with the cowl hood. mtrenegade: I think that you would be on to something there as long as you could draw in the colder outside air.

I built a true cold air intake for my truck. I'm not bragging or anything like that, but it goes all the way down to where the coolest air is: near the ground. Although close to the ground, it is also protected by the bumper. I can definately tell the difference in power and the engine runs cooler. You can also really hear that turbo whine, the sound is addicting. I made the intake out of pvc and painted the outside silver with ceramic coating. the pvc is thick so it doesn't break. then a conical k&n air filter on the end. If anyone wants to see a pic, I will be glad to take one so to show ya'll will know how it is routed and all.

If anyone wants to see a pic, I will be glad to take one so to show ya'll will know how it is routed and all.

I do.

likewise, lets see some pics

thx fireman

Yes, I very much 3rd that motion.

I would be extremely interested to see some pics of that b/c i havn't gotten my stage 2 aFe intake yet and so i can still cancel the order if there is a better way.

All in favor say I, IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

What are your your'alls opinions of the best intakes out there?I believe thats correctly spelled yall's...anyway...
I'm quite pleased with mine, even though it draws from under hood, it certainly doesnt seem to have had any negative effect on performance.
Oddly, mine has more trouble getting to and sustaining sufficient operating temp, overheating is a non issue so far.

http://dieselplace.com/forum/attachment.php?attachmentid=3158

[QUOTE=Texas Diesel Guy]Oddly, mine has more trouble getting to and sustaining sufficient operating temp, overheating is a non issue so far.

Could it be that your thermostat is bad?

This morning while i was driving, my truck had trouble staying at a constant temp and the temp gauge kind of flickered and so i think it is my thermostat going bad

Any ideas of what it could be?:cool:

Roberts, Could be thermostat or the temp sending unit. TDG, have you ever checked to see what your IAT is now with your filter set up? I would be curious to see. I might try popping my lid off my airbox and then see what the ol MT-2500 has to say. Sounds awesome without the lid on, but I am afraid of high IAT's. By the way, I too would love to see a few pics of Dapickupman"s cold air intake.....might have to build one myself. Gotta love the whistle of that turbo:ro)

no i haven't yet. I really haven't done much yet to my intake and the only thing that really should have lowered the temps slightly would have been the 4" exhaust but today the temps were way lower than normal and the needle kind of flickered around and that was not normal at all. I have a new thermostat but i havent installed it yet. so it could be the temp sending unit?:confused:

Thermostat has been replaced twice recently (along with waterpump), and definitely functions. One time each startup she will get to full 195F, Tstat opens, temps drop to ~180 and stay there. I really noticed it was running cooler after I replaced the timing set, not 100% sure why that is, but I have verified the temp gauges accuracy with infared, and its got a new coolant sensor too.

Next good opportunity I will get some AIT readings, though it probably won't reveal much until it gets a little warmer.

QM, could the IAT signal be modified for an advantage. What does the PCM do if the IAT is cold or hot? Does it modify fuel quantity or injection timing, both/niether?
I think it would be better to put a veriable resistor on the ECT sensor as an increase in Ohms will increase the fuel output and advance timing. It's about time to test this one out.

QM,
Doing that (increasing the ECT ohms) will probably increase the idle speed, too.

OK, as long as it increases WOT fuel delivery. I havn't gotten into it yet but it shouldn't be a big deal to wire it and test drive it with the scanner to monitor fuel demand and actual/measured time.

i will take some in the morning. sorry guys that i havent been talking, but the wife had me running and working; i sure ya'll understand. i will get them on tommorrow afternoon.

Here ya'll go. sorry it took so long to get the pics to ya. I used four 45 degree pvc pieces and some pvc glue. the rubber connector is also from the hardware store. then put a conical filter on the end. the filter will sit between the crank pulley and the idler arm, just behind the radiator hose. It is a tight fit, but it does go.:D

I think this style of intake is the best. The only problem is getting one to look halfway decent on the GM body.

does anyone have access to a large selection of air filters for the big rigs? I think we could use a larger cylindrical filter in place of where the stock 97 and newer airbox goes if we can get the right size.

i just got my aFe Stage 2 air intake system today and i will be putting it on tonight and removing my snorkel so if anyone wants to know how it goes i'll post my "review" of it:)

please do and could you give us the dimensions of the air filter itself?

dapickupman - I like your idea except for the fact that there are times when water levels are at bumper level. Need to keep intake up high and ideally out of engine compartment.

I agree about the water issue, here in Florida we get some rain at times. Those are usually the times I am glad I have left the airbox alone so far. Its all I need to get some water in the intake.

i just got my aFe Stage 2 air intake system today and i will be putting it on tonight and removing my snorkel so if anyone wants to know how it goes i'll post my "review" of it:)

Yes, a review, pics and more pics would be nice. Also any info on the 'contorsions' necessary to remove the snorkel from the inner fenderwell.

Yes, a review, pics and more pics would be nice. Also any info on the 'contorsions' necessary to remove the snorkel from the inner fenderwell.

Pull hard!):h After the screw from behind the battery is out of course!

anyone have a writeup or pics of a modified stock airbox ???

anyone have a writeup or pics of a modified stock airbox ???


http://www.kennedydiesel.com. Scroll around under Tech Tips.

http://www.kennedydiesel.com. Scroll around under Tech Tips.

ty for the info ...