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20G or L1R? Wich one to buy?

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EcLiPsEgSt97

20+ Year Contributor
127
0
Aug 31, 2002
ok planning on buying a new turbo i just dont know which one to go with. 20g or l1r... i got the money for the l1r but im not sure if i will have to spend more money on it...like porting and getting it clipped. if i buy the 20g i can get it ported and clipped....just help me give me your opinions...thankx...
 
If you're interested in an application where the L1R would be a good alternative, you don't *want* to clip the 20G. Remember that clipping increases flow AND lag.

Having said that, reports suggest that the L1R is the street turbo du jour, so if you can afford it, join the herd. 8)
 
Does anyone have a link to show how much the l1R flows? If it really does put out like a 20g than Id seriously consider getting that for my next turbo...
 
Originally posted by candela
Does anyone have a link to show how much the l1R flows? If it really does put out like a 20g than Id seriously consider getting that for my next turbo...

AGP Turbos

There you go.
 
Everyone is saying L1R but you have to remember that it costs 300 more than a 20G. Just a thought.
 
And also EcLiPsEgSt97 has FWD so wouldnt he want full boost to hit a little later?
 
Originally posted by GSXracer
And also EcLiPsEgSt97 has FWD so wouldnt he want full boost to hit a little later?

Using a big turbo to compensate for bad driving isn't the answer. I personally would get the L1R but I am biased.
 
I didnt mean the AGP link guys, cmon' Ive been doing this for too long to ask something like that. I want some flow maps, guess I shouldve been more specific. The L1R is 300$ and you need lines, and if you want an internal gate its even more. I would love to have an AGP turbo more than anything but, the cost just adds up. Anyway I would consider an L1R over the 20g any day. I trust Kevin's word and if he says itll put out like one than Im sure it will.
 
Oh yeah, and why do FWD guys always say that theyd rather induce more lag so they don't "spin"? That sounds pretty rediculous to me. I dont think (as Taylor said) turbo's should be seleted for that reason at all. Obviously its up to you, but my friend has a big turbo on a FWD and we compensate with light foot, or the profec B or something...
 
I have the 20G and love it. I say get the 20G. I have the TD06 20G from SBR with a 38mm internal gate. I hit 21psi by 3400rpms. So far I have run a best of 12.3@112 on pump on 21psi. You will see similar numbers all over the place from people running 20G turbos. In fact you will see many people going faster. AGP makes some nice turbos but no one seems to have run anything on them... or at least they aren't saying anything. Who has an L1R? What has the L1R run? What does everyone hit spool at?

Yes, AGP makes nice turbos and all and they stand behind their products which is excellent as well. I would believe what they say it should do, but I would also want to know from people who run them on their cars. So if you want to buy one, unless you want to hope it works as advertised, I would wait until someone who runs one posts something about it.
 
NJGSX96 I agree with you on this. I had a 20g on my car also it is an amazing turbo I went 11.60 on mine on 24-25 psi. The bottom line I guess is the 20g is proven and we just have to sit a wait until we see some solid times with these new turbo's. Just my 2 cents. Later

Ed
 
Originally posted by awd11secgsx
NJGSX96 I agree with you on this.

Me too....everyone claims the AGP turbos are so great but yet nobody has really put up some respectable times...They could be great turbos, but maybe the wrong people have them. I'd get a 20G, personally
 
damn know i dont know which one to go with...i could go with any of the 2...if i get the 20g would i need a external wastegate? what else would i need to buy to install it or get it runny properly? i can get the l1r or l2r but i would have to wait to get some more money to get what ever else i need to install it....
 
You would need an install kit since you got a 2g. You dont have to run an external on it if you dont want to. It would be optimal but its not needed
 
Originally posted by candela
Oh yeah, and why do FWD guys always say that theyd rather induce more lag so they don't "spin"? That sounds pretty rediculous to me. I dont think (as Taylor said) turbo's should be seleted for that reason at all. Obviously its up to you, but my friend has a big turbo on a FWD and we compensate with light foot, or the profec B or something...

But if it is easier to keep from spinning with inducing more lag why would you want to make it harder on yourself? Even with the 20G you will have to learn how to drive it and when to be easy on the throttle. I don't think the L1R would be a good choice for a FWD if they are going to be doing drag racing with it. For Autocross it would be good but I don't think you really want that fast of spool for drag racing a FWD.
 
dsmnate, nice sig pics but, do you have any experience to back this up or is this only speculation? Your profile didn't say what turbo you have only that it is upgraded. A profec B or a dual MBC would be better than just getting a slower spooling turbo. Seriously though, whats the point of a turbo car if you are only going to make its powerband the same as a hondas?
 
Originally posted by NJGSX96
I have the 20G and love it. I say get the 20G. I have the TD06 20G from SBR with a 38mm internal gate. I hit 21psi by 3400rpms. So far I have run a best of 12.3@112 on pump on 21psi. You will see similar numbers all over the place from people running 20G turbos. In fact you will see many people going faster. AGP makes some nice turbos but no one seems to have run anything on them... or at least they aren't saying anything. Who has an L1R? What has the L1R run? What does everyone hit spool at?

12.7 @ 112 on a stock sidemount running 100 octane at 21psi. I hit boost threshold at 2500 or so and full 21 psi boost by 3000-3200 depending on the gear. The best thing is transient response. Off-on-off boost is incredible.

Originally posted by NJGSX96

Yes, AGP makes nice turbos and all and they stand behind their products which is excellent as well. I would believe what they say it should do, but I would also want to know from people who run them on their cars. So if you want to buy one, unless you want to hope it works as advertised, I would wait until someone who runs one posts something about it.

I have been running the L1R for over 3 months now. I am writing a review of it as we speak and will be posting it today.
 
Originally posted by taylorspl
dsmnate, nice sig pics but, do you have any experience to back this up or is this only speculation? Your profile didn't say what turbo you have only that it is upgraded. A profec B or a dual MBC would be better than just getting a slower spooling turbo. Seriously though, whats the point of a turbo car if you are only going to make its powerband the same as a hondas?

No I wasn't saying that I had any experience to back it up beside driving a FWD and having to learn how to launch it. I was just giving my opinion on what I thought may be an easier way to launch a FWD. I was also going by the experiences that I have read LarryD having with the T28 he had and figured more lag might be a answer to the problem.

My profile shouldn't say I have an upgraded turbo because I still have the T25 and Actually I have been trying to decide what I wanted to go with as well, I have been leaning toward the 20G that's why I said that.

Yes a profec B or any dual stage boost controller would also be an answer. I never really thought of it the way you did with the Honda powerband comment but with a turbo you will still get more power than the VTEC honda boost of power.
 
Maybe this is a dumb question but does anyone here have timeslips with either turbo? I know the L1R is new, but I would want some timeslips or seat time to make my choise.
 
Originally posted by nothing stock
Maybe this is a dumb question but does anyone here have timeslips with either turbo? I know the L1R is new, but I would want some timeslips or seat time to make my choise.

L1R
This was on a 40 degree day with no traction running 1.95 short times in my AWD on a stock sidemount at 21psi. (Like I said in my post above)

12.76 @ 112
12.69 @ 110
 
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