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QG18 1.8L Engine Engine Discussion: 2000+ Sentra XE, GXE, & 1.8

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Old May 28th, 2009, 12:28 PM   #1 (permalink)
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qg18 to a sr20 or ka24 swap how?

I have a 01 gxe with the qg18 and it make no power and they sell barely anything for that engine, so i want to swap with a sr20 or ka24 does anybody know what i need or have done it before .thanks
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Old Jun 4th, 2009, 12:19 AM   #2 (permalink)
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Originally Posted by flindner View Post
I have a 01 gxe with the qg18 and it make no power and they sell barely anything for that engine, so i want to swap with a sr20 or ka24 does anybody know what i need or have done it before .thanks
A QG that makes no power, huh? I don't know where you're coming from dude. I feel like my 1.8L, paired with an auto tranny, is very responsive and fun to drive. Maybe it's just me...

Anyway, on to your question! Just so you know, the K24 is a Honda engine. I'm sure it's possible to add to your car, but it would look kinda funny sitting in your engine bay. The SR20 would be a good idea, because you'd probably get away with keeping the rest of your car stock. If you go for an engine that produces significantly more HP, (160 +) then you'll need to switch the tranny, brakes, etc. to compensate for the extra power. Remember that all of this costs money, so consider your budget above everything. You could always sell your car and buy another one with a bigger engine, like a Sentra Spec V, for example.
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Old Jun 6th, 2009, 02:25 PM   #3 (permalink)
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Any updates? Have you decided on what you're going to do?
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Old Jun 7th, 2009, 04:58 AM   #4 (permalink)
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A QG that makes no power, huh? I don't know where you're coming from dude. I feel like my 1.8L, paired with an auto tranny, is very responsive and fun to drive. Maybe it's just me...
That's highly perspective-dependent. My GF's Sentra 1.8S is definitely responsive, but by any modern standard, it doesn't make much power. Don't get me wrong; it's a good engine in a good car, but it doesn't make for a *fast* car. I can definitely understand where the OP's desire for more power comes from. Of course, of late, I've been driving a '95 300ZX, so my perspective may be skewed a bit by the VG30DE in that car.

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Anyway, on to your question! Just so you know, the K24 is a Honda engine. I'm sure it's possible to add to your car, but it would look kinda funny sitting in your engine bay.
That may be true, but the OP asked about the KA24, which is a Nissan engine. (240SX, Altima, many others in the 1990s used this engine.)

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The SR20 would be a good idea, because you'd probably get away with keeping the rest of your car stock. If you go for an engine that produces significantly more HP, (160 +) then you'll need to switch the tranny, brakes, etc. to compensate for the extra power. Remember that all of this costs money, so consider your budget above everything. You could always sell your car and buy another one with a bigger engine, like a Sentra Spec V, for example.
Can't disagree with this last part, though. It could easily be possible to exceed the price of an SE-R in upgrades, depending on what you do, and so it might be worth considering simply going the route of acquiring that car instead.

Last edited by olstyn : Jun 7th, 2009 at 05:01 AM.
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Old Jun 7th, 2009, 04:05 PM   #5 (permalink)
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That may be true, but the OP asked about the KA24, which is a Nissan engine. (240SX, Altima, many others in the 1990s used this engine.)
I realized my mistake the second time I read through it lol! Since the poster of the question never responded, I didn't bother editing it, even though I should've.

I must be spending too much time in the Civic forums!
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Old Jun 7th, 2009, 04:23 PM   #6 (permalink)
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That's highly perspective-dependent. My GF's Sentra 1.8S is definitely responsive, but by any modern standard, it doesn't make much power. Don't get me wrong; it's a good engine in a good car, but it doesn't make for a *fast* car. I can definitely understand where the OP's desire for more power comes from. Of course, of late, I've been driving a '95 300ZX, so my perspective may be skewed a bit by the VG30DE in that car.

No doubt about it! The QG powered Sentra isn't going to boast astonishing 1/4 mile times in its stock form. "Responsive" is the word I use to describe my car, like you referred to your gf's 1.8S.

As for it being slower compared to modern cars, I have to disagree. According to the comprehensive road tests that I've read at Edmunds.com, the 2009 line-up of entry level compact cars (Which are in the same class as the Sentra) in base model form have similar 0-60 times; they usually make it anywhere from 10 to 12 seconds. Keep in mind that I'm not taking into account the many vehicles on the road used as daily transport that have bigger displacement engines and more cylinders, albeit much heavier in most cases, which I'm sure are a major influence on how people view their cars. If the OP was to read the specs of the cars in it's class, I'm sure that he/she wouldn't feel so slow, by that standard. But once you're out on the road getting overtaken by a Tundra with a 5.7L Triton V8 or a Dodge Ram with a Turbodiesel engine (Like the majority of people own out here in TX) after every stoplight, then I guess that would legitimately make you feel slow in a 1.8L Sentra.

I have a friend who owns a 300ZX. His is N/A. That's one hell of a car! I bet you get many compliments and stares from curious onlookers.
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Old Jun 7th, 2009, 04:45 PM   #7 (permalink)
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Well, the Z's gas mileage leaves something to be desired compared to the Sentra (21 or so MPG on my last tank of 92 octane, more city than highway), but yeah, it's tons of fun.

Unfortunately, however, it's not mine, hence "what I've been driving," rather than "my car is." :P It's on loan to me from my father at the moment, and I'll have to give it back in a few weeks. I haven't noticed a ton of stares, but I'm more interested in driving it than what onlookers think.

Back on topic, once again, it comes down to perspective; you were looking at it within the compact sedan class, whereas I (and possibly the OP) were making a bit broader comparison. Obviously when compared to Civics, Corollas, etc, the Sentra is very similar, performance-wise. All of the cars in that class could probably stand to make a bit more power than they do in terms of fun factor, but that's not really the mission they're designed for.
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Old Jun 8th, 2009, 01:47 AM   #8 (permalink)
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Well, the Z's gas mileage leaves something to be desired compared to the Sentra (21 or so MPG on my last tank of 92 octane, more city than highway), but yeah, it's tons of fun.

Unfortunately, however, it's not mine, hence "what I've been driving," rather than "my car is." :P It's on loan to me from my father at the moment, and I'll have to give it back in a few weeks. I haven't noticed a ton of stares, but I'm more interested in driving it than what onlookers think.

Back on topic, once again, it comes down to perspective; you were looking at it within the compact sedan class, whereas I (and possibly the OP) were making a bit broader comparison. Obviously when compared to Civics, Corollas, etc, the Sentra is very similar, performance-wise. All of the cars in that class could probably stand to make a bit more power than they do in terms of fun factor, but that's not really the mission they're designed for.
That's a pretty generous loan! I don't know, every time my friends and I see a 300ZX or similar car, we "onlook" lol!

Anyway, it really is about perspective. Mine definitely differs from the others' views. You are right on target about the true intent of a 1.8L driven Sentra; being economical, not powerful. Maybe it's the enthusiast in me that's gotten weary of comments like that about my platform, though at first I felt exactly the same way about mine. I guess it's somewhat hippocritical. I completely understand that not everybody has the luxury of purchasing a pricier car for it's performance, but I wouldn't perform an engine swap on a base model car, because then it will no longer be economical. Resale value is going to decrease drastically and the characteristics of the car will change radically. I think that the best option for this person is invest in whatever performance-oriented vehicle that they desire and sell their car to help make ends meet, if necessary.
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