Is the 50 trim supposed to be this laggy?

[95Eclipse]

Ok, I just bought the AGP rs49 and like I said before it's very laggy. Now I know I'm supposed to put all the supporting mods on there before the turbo, but mine broke, so I had to get another one and really don't like to keep replacing in the future(The 50 trim just seemed to be the best option), so I got it.
Now I step on it and it lags till' arround 4000 RPM(it's at about 15psi) then it just pulls and creeps like crazy(I let off the gas of course). Is it supposed to be that laggy? I thought it reached full boost at 3700 or 3800 RPM's. My car is an 95 AUTO GSX with only 3"intake and 3"exhaust no cat (that's probably the creeping problem)Greedy BOV and a walbro 255 to be installed soon with FPR. I know that with a better Torque converter it should help a lot, but my concern is that I had to send the turbo back to them because the wheel wasn't spinning freely and now I don't know if the turbo was defective and that's why it lags very much. Anybody else with and AUTO 50 trim with the same or best results please let me know.

 

[1fast97gsx]

it should spool a little faster imo ... the auto isn't really helping but on 56 trim hits 23 psi by 4300 ...

 

[skinnypimp]

exactly!! when i had my auto with a big16 it took forever to spool.

 

[coltboostin]

Its your tranny, not your turbo bud.

 

[spoolints04]

What 02 housing do you have?

 

[Twizzle]

if the wheel wasnt spinning freely this was a turbo issue

 

[doug]

exactly!! when i had my auto with a big16 it took forever to spool.

Maybe you had other problems, then. The Big16G on my A/T spools quick-- barely noticeable spool difference from the T-25.

 

[95Eclipse]

coltboostin,
What do you mean it's my tranny and not my turbo? It worked really good before. I used to be able to "brake boost" till about 3000RPM's before(it got me out of the hole very quickly) and now with this one I can only go till' 2500 and moderately goes untill "real" boost hits. I don't know what would cause that though is it supposed to change the stall point by just changing to this turbo?

Twizzle,
It came like that from AGP and as soon as I got it out of the box I called them and sent it back, I never put it on the car, thank god! but still concerns me because I don't know if it's a faulty or repaired turbo.

spoolints04
I have stock ported the hell out O2 housing, what do you have in mind?

1fast97gsx
Yes, I thought is should spool a lot sooner too at least that what they claimed it did, do you think that it could be due to the fact that I don't have FMIC, better injectors and fuel that it takes for ever?

Thanks for helping out!

 

[gritsak]

yeah you should try and find an auto with the same turbo and see when they spool up....if your getting your impressions on when it should spool from 5speed cars then you should realize that a stock auto is gonna spool slower

 

[Twizzle]

Twizzle,
It came like that from AGP and as soon as I got it out of the box I called them and sent it back, I never put it on the car, thank god! but still concerns me because I don't know if it's a faulty or repaired turbo.

if you never put it on your car... how do you know when its spooling.... you said you put the rs49 on and it was lagging.. but if you got the turbo, and the wheel wasnt spinning and you never put it on, how would you know?

 

[Ben K]

An auto is going to add a little bit of 'lag'. Your biggest issue with lag is probably the stock intercooler.

 

[STECARS]

yeah you should try and find an auto with the same turbo and see when they spool up....if your getting your impressions on when it should spool from 5speed cars then you should realize that a stock auto is gonna spool slower

I got one, Internally gated. But its never been driven only brake torqed. I seee full boost at about 3600-3700 rpms. Thats untuned. Its set at 16 psi.
Tubular o2,
tubular ex. mani,
3 " turbo back no cat,
1g intake mani ( ported ),
1g head severly ported,
650's,
255 lph,
Maft translator 3"
etc..........etc.....Oh, FMIC 24x12x3 with shourt route piping
so i got a couple of mods on you, but keep going with it and everything should work out.

My tranny is currently stock , thats why the car hasnt been driven; I know I'm gonna break it if i drive it .

 

[1fast97gsx]

you most likely have boost leaks ... check for that first.

 

[boostedinaz]

Ill be the first asshole of the group. Why would you complain about a product that you dont even have properly supported???? You have nothing done but a 50 trim and you are asking why it doesnt perform the way it should. Perhaps because you dont have the proper setup.

Please do us all a favor and when you car dies make sure you tell people its your fault and not that DSM are unreliable. That way all the "horror stories" wont continue.

Bottom line get the entire setup and play with it a bit before you ask questions like this.

Michael

 

[1fast97gsx]

Ill be the first asshole of the group. Why would you complain about a product that you dont even have properly supported???? You have nothing done but a 50 trim and you are asking why it doesnt perform the way it should. Perhaps because you dont have the proper setup.

Please do us all a favor and when you car dies make sure you tell people its your fault and not that DSM are unreliable. That way all the "horror stories" wont continue.

Bottom line get the entire setup and play with it a bit before you ask questions like this.

Michael

Agreed ... however 16 psi SHOULD be fine with stock intercooler and injectors.

 

[boostedinaz]

Agreed ... however 16 psi SHOULD be fine with stock intercooler and injectors.

16 Psi from a 14B/16G is ALOT less air than 16PSI from a 50 trim. It isnt just a matter of matching the boost level, you have to make sure that you are not maxing out the injectors with the VOLUME of air that the motor is seeing not to mention that stock side mount is only fairly effcient with a maxed out 16G. With out a logger of somesort he is flying blind and has no way to monitor what he IS doing to his motor. I am a to the point person and this is just dumb and asking for a cashed out motor.

Michael

 

[Mitsuboyee]

Here's my story. I had a big 16G it felt great spooling around town making noise at 2000RPM. I now decided to get another turbo that I won't need to upgrade for a while. I got a Precision SCM-61 630HP 61/76 Trim .48 housing. I was very unhappy at first when i took it for its maiden pull. I lagged like crazy I thought I had like a vaccum leak or something. Well took it to the dyno made 330 to the wheel, not bad. That made me feel better about the turbo and its purpose. See if you gonna get a big turbo then you have to grow with it. I now have the car tuned at the dyno and have more confidence with my machine on any strip. You will have to accept the fact that the turbo is laggybut do yourself a big favor, Dyno the car and tune it. I found out my Knock sensor was faulty on the dyno Scheww.

Good Luck

 

[14.5 drift]

Did you guys know that automatics have longer gearing than manuels?
So why then would an automatic be the reason for laggy boost?
Also not having a fuel pump/injectors/fpr should not affect how soon boost comes on, but like dude said, it's your own fault if some thing breaks because of it.

 

[gregmondro]

stock stall converter won't let you stall it high enough to properly get into the boost from launch that you were with the smaller turbo

autos also have smaller injectors so you'll be maxing out the injectors faster.

YOU WILL MAX OUT THE INJECTORS. I maxed out my auto injectors on a small 16g on 16psi. the kid who i bought the car from just threw a 16g when the 14b died. You don't wanna cause hella knock, turn down the boost, get supporting mods etc, then have fun with it.

get supporting mods for the turbo first, then a stall converter that'll compliment the turbo. :shrug:

 

[nanokpsi]

it should spool a little faster imo ... the auto isn't really helping but on 56 trim hits 23 psi by 4300 ...

You need to go back and change the other post where you said it didn't spool up untill 5k rpms. The 50 trim pte will spool up around 4k (i spool at about 4300 in 3rd gear-23psi). I know of DOZENS of people with the 56 trim pte and it spool close to 5k rpms.

 

[doug]

autos also have smaller injectors so you'll be maxing out the injectors faster.

Not true for 2Gs-- all 2Gs have 450s. I'm not saying he won't max them out-- I did that on my Big16G-- but just that they're the same as for 5-speeds.

 

[95Eclipse]

First of all, thanks to everybody for all the help.

Twizzle
I din't explain quite well. I sent it back and they "fixed it" and sent it back to me pretty soon. I got it a week after I sent it.

Ben K
Thanks, I'm trying to save all the money I can to get a FMIC since it's now a must probably from AGP as well.

1fast97gsx
No boost leaks exept for a small one on the throttle Body.

boostedinaz
I am not complaining, all I did was ask a simple question since I'm not familiar with this turbo at all, and seeing what others have experienced and trying to learn at the same time before blaming the turbo. After all isn't that what this site is all about learning and sharing info? I mean if I'm not in the right forum, somebody please move it.

everybody else, I will try and get all the mods asap and keep the boost as low as possible and tell you what happens. After all somebody else could have the same question as me and now that the tread is made they should find it.

 

[Eclipsei95cl]

I have an Auto GST and have a RS60..(60-1) and yes it is laggy it will start to make boost after 3500rpms and once it goes to like 4300 rpms it will hit boost hard Ive gotten 20 psi at around 4500. Before that I had a Big 16g and could brake torque to 3k and now that i got the 60-1 I can only brake torque to only about 2200..Adding any new setup to our cars will change ur stall speed im not really sure why but it just changes things and it sucks but i mean gettin boost at 4k isnt bad im sure a few hundred rpms sooner wont make that much of a difference. But yeah Like everyone said seems like your problem is the supporting mods that u dont have to make that turbo perform like is supposed too. Just keep the turbo throw on the rest of the mods u need and see how it works then good luck

 

[boostedinaz]

boostedinaz
I am not complaining, all I did was ask a simple question since I'm not familiar with this turbo at all, and seeing what others have experienced and trying to learn at the same time before blaming the turbo. After all isn't that what this site is all about learning and sharing info? I mean if I'm not in the right forum, somebody please move it.

Thats exactly what I am saying. You went out and bought a turbo that you have no idea about and in your mod list you say "laggy as hell" That is misinformation from an admitedly uneducated person. I hate to be rude but there are so many people that buy something then read the board to get educated. Thats the wrong way to do it.

The most likely reason you are having problems is becasue you are trying to run low boost on a big turbo. The WG flapper will open slowly as you approach the desired boost level, it doesnt just pop open at 15 lbs. When you try to run boost at 15 lbs it will slightly open very quickly and bleed off the pressure while it is trying to spool. That could be one reason. This could be helped by an EBC or a good MBC that is not a bleeder valve. You also cant get good pulls due to lack of supporting mods so it is hard to say if you are actually getting full boost at that RPM becasue you dont want to go lean. Another reason not to put a big turbo on a stock car.

Michael

 

[95Eclipse]

I did quite some research on the turbo before buying it and had a very difficult time deciding which to buy, mine broke and had to get one asap and really had not much time to decide, but didn't want to upgrade later. This seemed to be the best option.
I'll try and get all the mods and see what happens! Thanks for the replys though every bit of info is greatly appreciated!