1G radiator in a 2G? [merged 5/08]

[MidnightGST 46]

Will a 1st gen radiator fit a 2nd gen the reson Im asking is because I got a Dn performance manifold part # dnp 37 and it is in the way of the upper radiator hose . The manifold was designed for a 1g and they dont tell you this until you already have it and it doesnt fit.




MOD EDIT: They are the same size (dimensionally), but are not directly interchangeable. However, it can be made to fit with little modfication. See post #28 for more details.

 

[evileclipse909]

So I decided to put a solid aluminum upper radiator hose on since my rubber one was too close to the header. But in the process, Some how the radiator inlet cracked all the way around. I think it did this due to the aluminum hose not being able to flex. So now I need a new radiator. I was wanting to go with a 1g radiator because the upper hose inlet is further offset away from the header. Does anyone know if there is a way to make a 1g radiator fit in a 2g?

 

[joyfil2001]

when my radiator went i looked into the same thing. it is not practical to put a 1g radiator into a 2g and i dont know of anyone who has done it. from searching this site the answer i got was no, you can not put a 1g radiator into a 2g. hope this helps.

 

[99gst_racer]

Dimensionally, they are the same size. The two major differences between the two are inlet location (which you already knew), and the location of the lower mounting pins. To allow the 1G radiator to fit in a 2G, the lower mounting points need to be modified. The 1G had the similar style of mount, but it was about 1" off to the side on each side. So they will not be interchangeable without a little bit of work. And if you use an OE radiator with plastic tanks, you'll only be able to modify the car's side of the mount, and that is much more work. As apposed to running an aluminum 1G radiator and cutting/grinding off the lower mounting pegs. Then grabbing 2.5" of .25" aluminum round stock and welding two new pins in the 2G location.

I have an aluminum 1G radiator in my 2G for the exact same reason you are considering using one. Installation was a breeze. Check my gallery for pics.

 

[m_0ney_pit]

Just to add ( sorry for bring it back from the dead)
You can install the 4g64 spyder radiator into your 2g if you want a stock piece that is bolt in and OEM. It has the coolant ports the same place as the 1g. You could probably pick one up at a junk yard super cheap.

 

[Jay-Wel]

Can you you do it? what all has to be done, is it hard if so?

 

[Diamond Star Werks]

Not 100% but I'm pretty sure the brackets/mounts are in diff places. You can do it, but what's the gain? I don't see it being worth it

 

[97gst_spyder]

Yes it will fit once you move the lower pegs on the bottom to fit the 2g location.

Its a better design due to the upper hose being moved to teh passenger side farther away from the mani and turbo. Less heat, better cooling, longer hose life.

 

[abaum565]

The top mounts are the same, but the bottoms are different. You will have to modify the bottom mounting locations in order to make it work. You will also need a 1g upper radiator hose.

Many people do this mod to make room for large turbos and waste gates, as the 1g upper hose location allows for more room than the 2g hose location.

 

[Jay-Wel]

Not 100% but I'm pretty sure the brackets/mounts are in diff places. You can do it, but what's the gain? I don't see it being worth it

### I got a performance aluminum radiator for crazy cheap, but its for my 1g. and it sounds like there are some upsides to it! im gonna be running a custom t3 TS mani with my HX35 with dual EWGs dumped so ill need all the room I can get. Thanks guys

 

[bryanwheat]

I've got a 1g radiator in a 2g car. The bottom pins lined up good. The uppers are located about half an inch in towards the center. The mounts will work fine, they will just be a little at an angle. You will also have to trim the upper radiator hose to make it fit.

 

[Diamond Star Werks]

### I got a performance aluminum radiator for crazy cheap, but its for my 1g. and it sounds like there are some upsides to it! im gonna be running a custom t3 TS mani with my HX35 with dual EWGs dumped so ill need all the room I can get. Thanks guys

I don't have much knowledge on the 1gs yet but it looks like their are some benes to the rad swap. I am currently figuring out how to swap in my evo 8 turbo in my 2g gst. I am picturing it being done but with a lil custom work. Would be a nice upgrade over the mini t25 Idk still a few things to figure but it seems somewhat possible at the moment to be set up to use without switching over to the driver side. Which wouldnt be impossible since i have the IM to follow but not looking to go with that much custom fab work .

 

[dexterholland04]

You will need to cut and relocate the lower mounting tabs for the radiator. You can fit a multitude of radiators in these cars, as long as you can fabricate or have someone fabricate the proper mounting tabs. I put a civic half radiator in my car, I had someone TIG some new mounting tabs where I needed them. If you are going to run a proper tubular manifold, then it is definitely a good idea to use a 1g radiator. This will relocate your upper radiator hose further from the manifold to keep it from melting. A 1g upper radiator hose should work fine.

 

[Jay-Wel]

I don't have much knowledge on the 1gs yet but it looks like their are some benes to the rad swap. I am currently figuring out how to swap in my evo 8 turbo in my 2g gst. I am picturing it being done but with a lil custom work. Would be a nice upgrade over the mini t25 Idk still a few things to figure but it seems somewhat possible at the moment to be set up to use without switching over to the driver side. Which wouldnt be impossible since i have the IM to follow but not looking to go with that much custom fab work .

https://www.revshift.com/shop/turbo...ml?PHPSESSID=c7105a9ffb58b35115e31e668b164e68

Like this?

 

[boostedjay32]

I somehow have one. I think I just bent the brakets down to hold the raidiator down. And its only one pin in the bottom brackets. Cools normal with one fan and a vrsf fmic in california weather.

 

[Diamond Star Werks]

https://www.revshift.com/shop/turbo...ml?PHPSESSID=c7105a9ffb58b35115e31e668b164e68

Like this?

ummm exactly like that! I know what I want for my B-day haha

 

[99gst_racer]

Jay-Wel - I merged your thread with the existing one on this topic. See post #28.

The bottom pins lined up good. The uppers are located about half an inch in towards the center. The mounts will work fine, they will just be a little at an angle.

You got that backwards. The uppers are close enough, but the lowers will need to be moved.

 

[Funfettie]

Hi there,
So Im dropping a 1g fluidyne Rad in my 2g to allow the upper rad hose to clear the exhaust manifold. I was wounding if anyone has photos of this process, and what you used for a new aluminum rod to weld on for the mounts?
Thanks!

 

[BrokenTsi]

Hi there,
So Im dropping a 1g fluidyne Rad in my 2g to allow the upper rad hose to clear the exhaust manifold. I was wounding if anyone has photos of this process, and what you used for a new aluminum rod to weld on for the mounts?
Thanks!

Dexterholland04 is putting a 1g Fluidyne radiator in his 2g car tonite. We can take pics and document the process if you'd like.

 

[bryanwheat]

I didn't have to change any of the mounts. The bottom ones fit right in the holes. The top ones were about a quarter inch different. The rubber in the mount can stretch and take up for the extra distance.

 

[Funfettie]

let me go double check, but im pretty sure mine are way off? yea that would be sweet if you could document the process tonight! would greatly help. I just cant seem ti find and aluminum rod to replace the mounts with

EDIT: yea the bottom mounts are 16 1/2" apart on the car, and the rad mounts are 15 1/2" apart. and the upper mounts are 3/4" closer that the car mounts

 

[dexterholland04]

Honestly, I just placed the radiator on the mounting ears (not through the holes) and bolted it in with the upper mounts. I had to slightly angle the passenger-side upper radiator mount because of the location of its corrisponding mounting peg. I cranked down on the bolts fairly good and that sucker isn't going anywhere! You could also use a Dremmel and enlarge the holes about 1/2" (making them more of an egg-like shape) or so on both sides to get the radiator to fit that way. Just some ideas...

 

[Diamond Star Werks]

can i ask why ppl are always trying to put a 1g radiator in a 2g? don't they sell all aluminum radiators for spyders? Their radiators are the same as a 1g and you don't have to ask how do I make it work because its already a 2g radiator. Look

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Actually if I remember the look of a 1g rad the spyder rad upper hose is over farther, not sure in that though.

 

[Funfettie]

Well, the 1g radiator's upper hose is pushed more towards the passenger side of the car so its further away from the manifold. This helps by keeping the rad hose cooler, which cools the engine better. another reason is to allow the upper rad hose to clear after market manifolds. Thats why im doing it. I managed to sneak an evo X EF4 split port turbo in my dsm, but clearly the manifold is in the way.

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[jcart953]

can i ask why ppl are always trying to put a 1g radiator in a 2g? don't they sell all aluminum radiators for spyders? Their radiators are the same as a 1g and you don't have to ask how do I make it work because its already a 2g radiator. Look

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Actually if I remember the look of a 1g rad the spyder rad upper hose is over farther, not sure in that though.

Not sure about the first question, but for the second part yes there are 2g radiators for the spyder. However in that pic you posted for the spyder gs the upper intake hose has to be slightly modified as such:

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[Funfettie]

Yepp, it was pretty easy to install. just cut half the lower mounts off, and stretched the upper mounts a little and it fit great