Increasing displacement

[psychlow]

(Before you jump on me, I tried search. It was pretty useless.)

All right. Well, I've always been partial to V8's. I'm sorry, add whatever exhaust you want, a 4-cyl or 6-cyl will never sound as good as an V8, IMHO.

But - new V8's (like my Stang) are just too farkin' expensive to make fast. The aftermarket for them sucks. Gas mileage sucks worse. And, I want AWD, living here in Colorado. Snow (literally) blows, and I have to be able to drive in it.

So, I'm looking at getting a 1G GSX or TSi, and probably adding a 50-or 60-trim. And yes, it'll be street driven, so I'll need something to spool the turbo so that I have at least some low-end.

So, here's my actual question: What are the options for increasing displacement on the 4G63? I know about the 4G64, but is there any other options (ie, overbore) that I could use on a 4G64? Is there any way possible to get the engine to 2.8-3.0L? Any examples of someone who's actually done it?

As long as I can listen to the sound of a big turbo spooling on the street and hear the BOV, I think I can get over the exhaust thing.

Thanks in advance.

 

[psychlow]

Back up.

 

[98eclipseRS]

I don't see why you couldn't stroke out the 64, I odn't know about 3L but at least 2.6 maybe even 2.7. The parts would most likely have to be custom so this project could cost even more than your v8 would. 2.4 should be enough to spool anything that would be streetable in our cars though.
-zach-

 

[workin_on_it]

or you could try and fit a stealth/3kgt engine....dunno if its ever been done...but that would give you 3 litres to start with adn plenty of turbo as well(a twin turbo one)
like i said i dunno if its ever been done and i duno if its possible but it would be pretty frickin sweet if you did

 

[psychlow]

or you could try and fit a stealth/3kgt engine....

Yeah, this is true... but I think it'd be almost as much trouble as a FWD to AWD conversion. I'd have to custom fab engine mounts and everything, plus I doubt I'd be able to adapt a E/L/T transmission to it, so I'd be using a VR4 transmission, then trying to mate that to the drivetrain would be a bi***.......

2.4 should be enough to spool anything that would be streetable in our cars though.

Anybody have an educated guess (or factual data) as to what RPM a 60-trim would be spooled by on a 2.4?

 

[candela]

Why don't you tell us what kind of goals you are looking for to make it easier for everyone to help you? What do you mean by low-end? Do you mean simply a decent torque number or like power amount at a certain RPM band? I mean 14b/16g's always give good results for torque nubmers very cheaply and can make decent power when cranked and easily throw an AWD in 12's...

Anybody have an educated guess (or factual data) as to what RPM a 60-trim would be spooled by on a 2.4?

I can tell you that a properly modded adn supported/tuned 64 witha 50trim, woudl feel similar to a 4G63 with the stock turbo. Im not sure if thats what you are looking to here or not, but the 64 as described will spool a, say .63/50trim/t04E, VERY fast! But you do know that a modded and tuned 64 in any dsm will not be cheap by any means right... it easier to state all yoru goals and what you know already for us to help you out...

 

[peregrine]

a 50 trim spools almost as fast as a 16g in my opinion. you dont need a stroker motor to be streetably fast in these cars.

 

[DSMSpyder99]

a stroker 4g63 is a 2.3L then you can bore it out probably another .2 make 2.5L

 

[psychlow]

it easier to state all yoru goals and what you know already for us to help you out...

OK.

Somewhere between 11.2-10.5, yet still being able to pass someone with a quick tap of the pedal under 1,500 RPMs.

 

[nine5raptor]

If you are on the highway and wanting to pass, you'll more likely be around 4000, not 1500. You just can't drive it like a v8 (which I can't drive because I actually want to rev the freakin thing). The 4g63 or 4g64 can get you to that goal (not very cheaply though ). Just don't expect to make much power below 3000 on a small displacement high boost motor.

 

[psychlow]

which I can't drive because I actually want to rev the freakin thing

Try a DOHC 4.6L with twin T-66's. That'll drive the way you want it, trust me.........

Anyone know if someone has run a sequential twin system on a 4G6X with good results?

 

[Defiant]

Originally posted by psychlow
OK.

Somewhere between 11.2-10.5, yet still being able to pass someone with a quick tap of the pedal under 1,500 RPMs.

Never happen. The car's too heavy, and an inline 4 just won't crank well enough to come on that low. Turbos start working around 2500-3000rpm. There's only so much you can do with 120 ci. Even up to 150 ci- it's a third of what you've been spoiled by.

 

[98eclipseRS]

Originally posted by psychlow
OK.

Somewhere between 11.2-10.5, yet still being able to pass someone with a quick tap of the pedal under 1,500 RPMs.

this is a serious question, have you ever had a modded 4banger?? I don't know about the people on this site but i am hardly ever below say 1800 rpm the lowest i usaully see when i am not being lazy is 2k. I see alot of v8 guys comming on here and wanting to be able to have the low end power that their last car had it just aint going to happen. As for the spool thing if spooling a 50 trim on a 2.4 is like spooling the stock turbo on the 4g63 then you really don't ahve anything to complain about maybe a have a second between you giving some gas and the turbo spooling and you being about 5 cars up on the person you want to pass. Plus with an awd anytime yoiu are racing you are probably at 3.5k at the lowest and at that rpm you would be at full boost.

Originally posted by psychlow
Anyone know if someone has run a sequential twin system on a 4G6X with good results?

yes it has been done and the guy that did it said the tunning was so hard to deal with that the gains that is possibly could give just were not worth the time and money that it would take to make it run good.

 

[psychlow]

this is a serious question, have you ever had a modded 4banger??

Nope. I understood, though, that goals I said were a little rediculous.... Nice to dream, though, right?

I see alot of v8 guys comming on here and wanting to be able to have the low end power that their last car had it just aint going to happen.

Yeah, I knew I'd be giving a lot of that up when I decided I'd go with a small displacement engine. It's really a matter of cost, and to save a few bucks I don't have too much of a problem sacrificing some low-end. I may just leave the stock cams in and boost it to hell, and see if maybe that'd help the low a bit.

Thanks for the help, guys.

 

[95AWD_TSI_TALON]

dude its turbo-the main power is seen WHEN THE TURBO SPOOLS!!!! not before. Nomatter how much work you do to the car its still FAST AS HELL even against a buttstang. BUT yes you can make it go all out fast but the car dosnt like being street driven that fast and i know this because my car works for a week then i am fixing it. and i am not that modded yet. My seggestion is to find someone around you with an awd thats modded and ask them to take you for a ride. And you will see that even a high 12 sec car on the street is plenty. You start getting more then that and it wontbe deemed a street car it will be named the guarge space taker upper. Why do you want a car on the street that fast i know around me no1 is that fast except one or 2 ppl and all you do is break stuff when you street race-why break stuff racing retarted b18's with cold air intakes. insted keep it at home talk trash to vett's and then go get it an make money. GAS ALONE IS INSANE FOR STREET DRIVIN MY CAR and i just got 580's in it. to run 11's you need way bigger.
-matt
p.s.-dont get me wrong i'm never selling my 2g awd I LOVE IT but you gota under stand that fast is NOT RELIABLE AT ALL.

 

[95AWD_TSI_TALON]

ps- my car is broken down so much because i street race

 

[hose101772]

1500?-What car makes power there?Ive owned serveral mustangs-5.0 and 4.6- aswell as brand x (gm)v8 cars.Lt1 came close but none of them ever felt like they could pass anything at 1500rpm.You need to download and listen to some shep videos,of course he's a god in dsm world but you'll get to see what could be done anyway.

www.shepracing.com/pictures/[email protected]

 

[out there]

i think he mean that he wants to be able to accelerate really quickly in less than 1500rpms, instead of the "courteous headstart" that a turbo gives

 

[psychlow]

but none of them ever felt like they could pass anything at 1500rpm

In my Stang, I can gas it from a cruise at 1500 and pass most cars in town without shifting or waiting forever. I didn't really mean passing anyone AT 1500, but rather from it without shifting.