GA16DE and QG18DE similarities

JCGator42 · Apr 11th, 2003, 06:07 PM

I forgot to bring this up back in the day when I researched and found this out, sorry for being late. Anyone with any year GA16DE engine or QG18DE engine have the same exhaust manifold flange and primary diameter/circumference. To prove this, I took my uninstalled turbo manifold and lined it up against a QG18DE motor and the manifold seemed about the same size, granted eyesight is only that, but furthermore, I bought QG18DE gaskets(set of 2) and those are the ones that I actually ran in my car the entire time I used to turbo kit. The benefit of this is that the turbo manifolds are interchangeable, and should be able to be run on both cars with no forseeable complications. I helped Protech Engineering design the QG18DE specific manifold even after knowing the GA16DE and QG18DE were interchangeable, sort of a way to make sure they fit right the first time. So if you have a GA16DE or QG18DE now there are two options, the Protech Engineering manifold, or the HS Performance manifold.
Thanks for taking the time to read this,
Juan C.C.

P.S. we all should by now know that the QG18DE and GA16DE share the same crankshaft pulley and might even be the same crank (dont want to make the assumption withought knowing 100%), it makes me wonder what else is the same.....???

javierb14 · Apr 11th, 2003, 10:08 PM

cool, more options

myoung · Apr 12th, 2003, 03:59 AM

Its close but I don't think it's exactly perfect...other wise you could run a GA header on a QG....I remember looking at the header flanges side by side and you could see some small differences...the gasket wouldn't have to be perfect.. if it over lapped a little it probably wouldn't hurt much... but you obviously can't have the manifold over lap a little..... but hey maybe we will check it out closer...

JCGator42 · Apr 12th, 2003, 04:06 AM

the final step to prove this is to actually try bolting a finished turbo manifold from a QG into a GA or vice-versa....EDIT: this last part of the regular post was edited, because after reading it, it seemed a little crass and harsh for no reason....TIP: do not type about car stuff at 5am when just getting home drunk from a long night of work, LOL.
JCC

P.S. well I would imagine you can't run the header also because of the motor placement, block height, etc. I will post with more details after I get come shut-eye.

myoung · Apr 12th, 2003, 08:13 PM

Quote:

Originally posted by JCGator42

P.S. well I would imagine you can't run the header also because of the motor placement, block height, etc. I will post with more details after I get come shut-eye.

true.... wasn't thinking...late night at work...lol

myoung · Apr 12th, 2003, 08:16 PM

I do know that the flanges are damn close... just seems like they had some slight difference, but that may not matter... measurments need to be taken.

JCGator42 · Apr 12th, 2003, 08:20 PM

yeah, I know at least that the bank of paired up runners do not overlap whatsoever, which is the reason I ran the gaskets on the GA from the QG; the Qg gaskets are also a lot cheaper than the GA gaskets and the two part numbers are of the same quality. But I did not measure the distance b/w the two primary banks(I couldn't think of another word), so that's why I dont know 100%.
JCC

JCGator42 · Apr 12th, 2003, 08:24 PM

I edited my 2nd to last post, seemed crass in my opinion. Mike and others, we really need to look into this, I mean, it would help getting interchangeable products made for these motor powered cars,
JCC

myoung · Apr 12th, 2003, 08:29 PM

Quote:

Originally posted by JCGator42
I mean, it would help getting interchangeable products made for these motor powered cars,
JCC

agreed.... and keep up the good work. It helps everyone with both platforms. More options is always a good thing.

**chimmike** · Apr 12th, 2003, 11:11 PM

I don't think it's really a problem of getting parts for the QG Juan, it's more of a problem of a reliable and easy to use management system for forced induction. It'd be nice if JWT did something for us after they finish the QR project, but that'll be a long time in coming (anything for the QG)

Worked more on the car today......woohoo. Still didn't fix the lack of boost problem, but I do know EXACTLY what it is

JCGator42 · Apr 13th, 2003, 02:44 AM

Chim what is it? hey, I don't know when I'll be going down there, but soon, if I can't go down there, then you should come here, I'll split gas with you, we'd get it running in a day. Anywho, if anyone really wants a reliable system, there are tons of options out there (different standalones and piggybacks) that can work great with a good amount of tuning. The best part of JWT is that everything is already tuned, but I think that just as much power can be made just as safe with other systems.
JCC

**chimmike** · Apr 13th, 2003, 09:18 AM

its hard to explain, but the actuator arm isn't getting enough free movement to open the wastegate.......I need to fab a new bracket or something........it's really gettin to be a pita..............but yes I could definitely use some help with it!!!! I've got a few days off the week after finals, when I'll be going home. I might just have it fixed by a pro, I'm not sure yet.

JCGator42 · Apr 13th, 2003, 10:32 AM

haven't I been telling you that for at least a week? freaking listen to me mAN!,
JCC

**chimmike** · Apr 13th, 2003, 10:54 AM

lol dude....I tried to fix that crap yesterday, took the downpipe off and the actuator, adn still didn't get it fixed. I dremeled out the hole on the arm thinking it would help the actuator move, nooooo

holy200sx · Apr 18th, 2003, 11:16 AM

did anyone find out the similaritys?... just curious