1g to 2g intake manifold

[WickedBlk95GSX]

i did find some useful info with searching but i didn't give me what i'm looking for. will the 1g intake manifold bolt to the stock 2g head without any problems and is there a write up for. thanks and again i did search just not the anwsers i was looking for.

 

[92tsiawdguy]

well you could expect this from a kid. Not an adult. Most people listen to the guys that know what they are doing. If some one told me dont do this and had a reason. I wouldnt do it. Could save you a problem down the road.

 

[grimdsm]

^^^ exactly, and esspecially when a 5 star dsm wise man says it is not a very good idea. I have come to find that you Earn those stars. I have never been misinformed by a wise man.. but this kid is obviously all weak titty, butt hurt on having a powder coated intake

 

[2point3Tsi]

can someone please take that poor car out of his hands before he does any more damage?

Or maybe I'll just wait until there's problems and take his good tranny parts after he toasts his internals

so much potential in the car, but operator error can end all help it just like

 

[VETTE_50_TH]

I pray to god that you used a 1g TB. . I plan on doing a 1g head on my 2G at some point. What is the things that are going to have to be swapped or converted to do this? Such as water lines, or vacuum lines, or whatnot.

James

 

[xsboost]

Maybe he had a bad boost leak at the manifold gasket or TB gasket that he inadvertently fixed when he changed everything. There's no way he should be running better with a 1g mani on a 2g head unless he had a boost leak before or something. Of course when you're using the seat of your pants as a performance reference the results tend to be what you're hoping for, i.e. it's all in his head.

 

[snowborder714]

I pray to god that you used a 1g TB. . I plan on doing a 1g head on my 2G at some point. What is the things that are going to have to be swapped or converted to do this? Such as water lines, or vacuum lines, or whatnot.

James

Lazy.............

RRE's Eclipse 2g Turbo to 1g Head Swap Tips

 

[WickedBlk95GSX]

ok so just got done doing 1g head swap.been at for 2 days now and now that im done with that i wanted to tell everyone that i was a jackass to that im sorry so im sorry.but yeah thanks for the good advice and sorry i didnt take it sooner. friday im getting a turbonetics t3/t4 ,turbo manifold not sure on brand but its like the ram horn and 550cc injectors what else will i need? if you dont want to help i understand but thanks again for the advice. btw i need a wastegate.

 

[gixrman]

ok so just got done doing 1g head swap.been at for 2 days now and now that im done with that i wanted to tell everyone that i was a jackass to that im sorry so im sorry.but yeah thanks for the good advice and sorry i didnt take it sooner. friday im getting a turbonetics t3/t4 ,turbo manifold not sure on brand but its like the ram horn and 550cc injectors what else will i need? if you dont want to help i understand but thanks again for the advice. btw i need a wastegate.

You really need to do some reading on the upgrade path. You need to know what size t3/t4 turbo you have so you can then understand what it needs to run properly. 550's might not be big enough. What are you using for fuel/air control? Boost control? Dataloging? Just don't go out and slap parts on the car becuase it will disapoint you.

Since you have a 95 the first this I would do is send the ECU off to DSMlink and go from there. Save yourself alot of headache's and money.

 

[empie1]

This thread is funny.

 

[rush2252]

ok so just got done doing 1g head swap.been at for 2 days now and now that im done with that i wanted to tell everyone that i was a jackass to that im sorry so im sorry.but yeah thanks for the good advice and sorry i didnt take it sooner. friday im getting a turbonetics t3/t4 ,turbo manifold not sure on brand but its like the ram horn and 550cc injectors what else will i need? if you dont want to help i understand but thanks again for the advice. btw i need a wastegate.

swallows pride and admits faults ... newbies are evolving


+1 for calling yourself out to be a "jackass".....

Can somebody post the results of a flow chart 1g head vs. 2g head? Im pretty positive the 2g flows better hence the change in design and why most people use the 2g head/intake mani whenver they do the 6bolt swaps.


EDIT.. wait a minute your initial post says 2g head 1g intake and now your saying you swapped on the 1g head? All for the sake of a blinging intake? I retract my prior statment... How did you use a 1g head on a 2g block? You do know that the holes for the headbolts are larger on the 1g head? I smell leaky HG

-Kolby

 

[Black95awd]

swallows pride and admits faults ... newbies are evolving


+1 for calling yourself out to be a "jackass".....

Can somebody post the results of a flow chart 1g head vs. 2g head? Im pretty positive the 2g flows better hence the change in design and why most people use the 2g head/intake mani whenver they do the 6bolt swaps.


EDIT.. wait a minute your initial post says 2g head 1g intake and now your saying you swapped on the 1g head? All for the sake of a blinging intake? I retract my prior statment... How did you use a 1g head on a 2g block? You do know that the holes for the headbolts are larger on the 1g head? I smell leaky HG

-Kolby

the 1g head vs 2g head debate will go on forever, its volume vs velocity. there comes a point where its not how efficiently you can get the air in but how much air you can squeeze thru the port. This is why most drag cars use a 1g head. A street car on the other hand I would suggest a 2g head for better low end and mid range.


Swapping a 2g head for a 1g head will not cause a leaky head gasket. All 1g and 2g 4g63's take the same head gasket, the Evo is the only different one.

 

[rush2252]

Swapping a 2g head for a 1g head will not cause a leaky head gasket. All 1g and 2g 4g63's take the same head gasket, the Evo is the only different one.

I was referring to the fact that the "hole" in which the head bolts through will have excessive slack so to speak. Hes using the 1g head on a 2g block which takes the smaller head bolts.... ya know the old hot dog or wet pickle thrown down the hall way

 

[dsm-onster]

ok so just got done doing 1g head swap.been at for 2 days now and now that im done with that i wanted to tell everyone that i was a jackass to that im sorry so im sorry.but yeah thanks for the good advice and sorry i didnt take it sooner. friday im getting a turbonetics t3/t4 ,turbo manifold not sure on brand but its like the ram horn and 550cc injectors what else will i need? if you dont want to help i understand but thanks again for the advice. btw i need a wastegate.

t3/t4 is a frame size combination: all garrett T style turbos from 300whp potential to 700whp potential. We can't really give you advice, yet. We need to know what turbo you have and what your goal is.

 

[Black95awd]

I was referring to the fact that the "hole" in which the head bolts through will have excessive slack so to speak. Hes using the 1g head on a 2g block which takes the smaller head bolts.... ya know the old hot dog or wet pickle thrown down the hall way

Thats cool, but there are head alignment dowels in the block that center the head. These dowel pins happen to be the same diameter on 1g and 2g. I ran a 6 bolt head on my 95 block with no issues.

 

[gixrman]

Can somebody post the results of a flow chart 1g head vs. 2g head? Im pretty positive the 2g flows better hence the change in design and why most people use the 2g head/intake mani whenver they do the 6bolt swaps.
-Kolby

I've never seen any folw charts posted between the two. My understanding is that mitsu did this for the 2g setup to deal with complaints about turbo "lag" with the big port 14b setup. Evos have small ports also so they must have been happy with it. I don't know if it flows better but the velocity is improved with the higher port design. This with the smaller T25 turbo lowered the lag time and improved throttle response but topend performance suffered.

 

[rush2252]

Thats cool, but there are head alignment dowels in the block that center the head. These dowel pins happen to be the same diameter on 1g and 2g. I ran a 6 bolt head on my 95 block with no issues.

...... My buddy jumped off a cliff once and broke both legs that doesnt mean im going to

Im gonna call BS on the "no issues" Did the headbolts not try to sink into the head whenver you torqued them?

 

[Black95awd]

...... My buddy jumped off a cliff once and broke both legs that doesnt mean im going to

Im gonna call BS on the "no issues" Did the headbolts not try to sink into the head whenver you torqued them?

No they didn't, 7 bolt uses an 11mm stud (or bolt depending on the route you take) and the 6 bolt uses a 12mm. This is hardly big enough for the bolt to "sink into the head".

Also OP, I hope you did not reuse the 2g head bolts as they are torque to yield and are no good after one use.

 

[xsboost]

......
Im gonna call BS on the "no issues" Did the headbolts not try to sink into the head whenver you torqued them?

People have been doing 1g head swaps for years with no issues.

 

[WickedBlk95GSX]

im going to tomorrow to look at it, pick it up if its good. im going to get the numbers and look it up and then ill let you all know what size it is when i find out.

 

[empie1]

...... My buddy jumped off a cliff once and broke both legs that doesnt mean im going to

Im gonna call BS on the "no issues" Did the headbolts not try to sink into the head whenver you torqued them?

"sink in the head"Are you serious?
Dude you really should stop giving advice about crap you clearly have NO clue about.There are NO ISSUES WITH A 1G head on a 7 bolt. It bolts down fine and doesnt leak, use your brain.Its basic mechanics here.Equal force is still being applied to the surface so there still will be a seal.I have ran a couple different setups like this and know from EXPERIANCE that it works fine.As for your 2g vs 1g head thing, its all opinion.A 1g head flows "more" a 2g head flows "better".Do you want top end or "midrange".Its been explained pretty well already the differences.If you or the op wanna learn the differences, search it,Its a beaten topic.I know your new, but don't just jump in threads and through in your opinions on stuff you clearly have no clue about.Just like the other thread where you argued that timing wouldnt have anything to do with low vacuum..

 

[donswan]

I think wicked is on glue

 

[empie1]

I think wicked is on glue

Best post in the thread.

 

[gettingwop]

Not to follow the lead of flaming this kid.

The 1g IM WILL NOT seal with either gasket. Line that setup up and take a look around the massive openings left. It may work for about a thousand miles. After that your going to have WAY worse issues than you ever imagined, your 'placebo' repair will fail. You will have serious leaks, you are pushing air into a wall with the smaller ports. This is a terrible idea and everyone told you not to do this. What would possess you to bolt something up that is in no way similar to the part your car requires is beyond me.

Remove the 1g IM, replace it with the small runner 2g IM that will match up with your head before you suck a shit load of unmetered air in through 'leak town' which is the land between the TB and the head on your car. Option B, join a rice inspired forum and ask them how to get 10-20 horsepower from some sweet fuel additives.

 

[xsboost]

Ok, I strongly disagree with using a 1g mani on a 2g head but for everyone who keeps saying that the 1g intake manifold will not seal on a 2g head, here's a picture to examine. The 1g and 2g head have the same sealing surface used by the 1g gasket, the only difference is that the 2g head has material where the 1g doesn't. A 2g manifold won't seal on a 1g head but tell me exactly why this won't seal.

 

[gixrman]

Yeah, i think that point has been made along with the OP coming to the conclusion that it was a bad idea. Now its just a dead end thread with people just beating on the guy.