mikecelica

#1

Few questions i had about the 7AFTE setup:

1. Is a .45 trim t3 turbo ok size or too small? Lookng to make about 180hp or so
2. Is 3" exhaust too big, shud I go with 2 1/2?
3. Do i need an fmu if im gona use bigger injectors?

thanks for any help

This post has been edited by mikecelica: Feb 24, 2008 - 2:35 PM

bccentaur3

#2

That turbo size would be good for 180. I know its small, but you only have a 1.8l motor anyway. 3" is a little too big for your horse power goals. FMU shouldn't even be mentioned in any turbo project. Its totally unreliable. If you're going to be running bigger injectors get an safc to tune.

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98 Celica gt red- totaled deer94 Celica st black DD (bad weather beater)- totaled deer95 Celica gt silver- chassis sold88 Celica All-Trac (Burned to a crisp)94 Celica gt white (sold)In need of a rust free chassis!!!!

mikecelica

#3

i got an safc2, so i shud go with 2.5" exhaust? Im thinking custom exhaust, turbo back 2.5" to a high flow cat then muffler. Also what are the best spark plugs to use with 7afte?

This post has been edited by mikecelica: Feb 13, 2008 - 12:20 AM

Celiracer18

#4

go with 2.5" its best for a 7afte

plugs i think can be the original or one step colder i believe

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-Brian

pabel89

#5

you dont need an fmu if using bigger injectors i told you that, also fmu are reliable you cant just run over 7psi or you mess up your rings. nik accomplish 170hp at 9.5psi which i think its real good, but to get the most power out of your turbo set up use bigger injectors. keep in mind thats $400 more if your using bigger injectors because your going to have it get tuned, just telling you if your in a budget.or the same thing that happen to me will happen to you your going to start choking on fuel.

mikecelica

#6

i do hav bigger injectors, i just got all my parts yesterday.. i have 330cc probe injectors... plus dont u have to tune the car even if you keep ur same injectors? $400 more for what? getting tuned? didnt your car choke, because one of your injectors was not working? also can i keep my same fpr? Also hows ur car handling the NGK plugs? i got the same ones. thanks forthe help

pabel89

#7

no my car was choking because i didnt have it proper tuned and it wasnt sending enought volts to my injectors.. and if your using ford probe injectors idnt think those fit write in with are harness. yes you can keep stock fpr...and its about $400 for a good tune with bigger injectors...if your using a fmu all you have to do is tune the air ratio...NGK plugs are good...dnt use bosch.

mikecelica

#8

ohh the injectors are off another 7afte so it shudnt be too hard to fit.. what trim turbo do you have.. mines a .45 t3 is that too small? btw think you can pull 14's on the 1/4 mile now or no?

This post has been edited by mikecelica: Feb 13, 2008 - 5:18 PM

pabel89

#9

i have a .50 A/R compressor .63 A/R turbine. pretty big turbo


This post has been edited by pabel89: Feb 13, 2008 - 5:57 PM

trd94

#10

ok the probe injectors well work,but you well need to get the pigtails for them,so you can wire them into your harness. a t3.45trim is small ,but you wont have much lag, and it should make the power goal you are after. go with 2 1/2 exhaust all the way along with intake pipe as well. if you are running a auto tranny with this setup you might be close to hitting a 14.7-14.9, but more than likly a 15-15.5 as you will have alot of torque steer in the 1/4 mi times, and traction will be a issue. a fmu will not work well for your hp goal,and you can use the same fpr, and spark plugs. i woulg go a step colder but you dont need to. always run ngk they work the best. dont forget to upgrade the fuel pump ,and i would us the emanage to get a better tune. it will help with the timing under boost. hope this helps you a little.

This post has been edited by trd94: Feb 13, 2008 - 5:59 PM

pabel89

#11

listen to trd94 he helped me alot when i was building my 7afte and he still is .he knows alot about the 7afte so do what he says.

mikecelica

#12

>

QUOTE(trd94 @ Feb 13, 2008 - 10:58 PM) [snapback]641226[/snapback]

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ok the probe injectors well work,but you well need to get the pigtails for them,so you can wire them into your harness. a t3.45trim is small ,but you wont have much lag, and it should make the power goal you are after. go with 2 1/2 exhaust all the way along with intake pipe as well. if you are running a auto tranny with this setup you might be close to hitting a 14.7-14.9, but more than likly a 15-15.5 as you will have alot of torque steer in the 1/4 mi times, and traction will be a issue. a fmu will not work well for your hp goal,and you can use the same fpr, and spark plugs. i woulg go a step colder but you dont need to. always run ngk they work the best. dont forget to upgrade the fuel pump ,and i would us the emanage to get a better tune. it will help with the timing under boost. hope this helps you a little.

That does help alot, yeah once i clean the injectors i'll fix up the wiring on them, i should be getting my walbros pump soon, and i got ngk v-powers, so this turbo should handle up to 200hp or so? an auto tranny is better for 1/4 mile? I'll be getting some new tires/rims plus lowering the car, and got strut bars, wat else do you think i can do for the traction issue?
Heres what it says on the website about the turbo: Plus i made a mistake its .42 not 45

T3_42/48
.42 cold a/r • .48 Hot • 2" OUTLET • Great Turbo for 1.6L to 1.8L engines • Spools on a 1.7 @2700 • TURBINE WHEEL: EXDUCER: 1.81", MAYOR : 2.48" • COMPRESSOR WHEEL: EXDUCER: 1.67", MAYOR : 2.36"

mikecelica

#13

i dont realy understand this graph... What does it show?



Sorry for all the quesitons, i have done alot of research both on this site and else where but these last few questions im still confused about,
thanks for the help

This post has been edited by mikecelica: Feb 14, 2008 - 12:00 PM

mikecelica

#14

bump

trd94

#15

that is a small turbo. i have one that i used on my honda and it worked real well with the 1.5l d15b7 i built. it spooled very quick ,and for a street car that was a DD it was ideal. it might get you to 200hp but you will be pushing it all the way , the graph shows your air flow and pressure. as far as if the auto is better than a 5 speed in 1/4mi , it depends on the driver and the setup. the times i put up was out of mine , and i have a auto. the auto wont vary in times as much as the 5 speed will. but you do lose more power to the wheels with a auto.

mikecelica

#16

i see... i still have some time now since my mechanic is busy with some other jobs for a while to change my turbo. What do you recommend? A T3 or T3/T4 or something else? What size do you think would be ideal to not get much lag but also not be working like crazy to put out 10lbs (for example). I probably wont drive it over 7-8psi daily driver and maybe 12psi at a track.

This post has been edited by mikecelica: Feb 14, 2008 - 9:04 PM

trd94

#17

it depends on when you want the power , at what rpm, and how big of a power band you are wanting. i think if you want a good street DD ,the 45 trim will be fine .it well be fun at the track as well. just dont aim for high hp 160-180 should be all i would hope for, if you are after all hp, and dont mind a little lag, and more boost than this motor can handle then a t3-t4 57 trim will work good. a good in between would be a garret super 60 trim , should be good for 160-200hp and not to much lag. boost comes in at a good rpm range as well. last most of the way to the top. now to answer your question , what do i run . i have tried all three , for me i use the t3-t4 as i have been trying to push as much hp out of this 7afe with using stock parts. just to be differant.

This post has been edited by trd94: Feb 14, 2008 - 10:10 PM

normality78

#18

hi trd94,
perhaps u may wanna let him know the hp figure you're reffering is on wheel or engine

mikecelica

#19

i guess i'd be happy with 180hp... plus torque shud be a bit higher right? thing is i want my motor to last so im hesitating over switching to the t3/t4 57trim since you said it might be more power then the 7a can handle.

btw: whats DD?

This post has been edited by mikecelica: Feb 14, 2008 - 11:51 PM

normality78

#20

Actually this is what im facing now. Im still finding way to improve my tq. current hp figure same as my tq. current only able to hit 155whp and 19.3kg-m.

This post has been edited by normality78: Feb 15, 2008 - 7:59 AM

pabel89

#21

quick question about the 7afte, oil all around your turbo isnt a good thing or is tht normal?

trd94

#22

most of my hp figures are on motor, and DD is Daily Driven.

trd94

#23

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QUOTE(pabel89 @ Feb 15, 2008 - 3:30 PM) [snapback]641858[/snapback]

>
quick question about the 7afte, oil all around your turbo isnt a good thing or is tht normal?

no it is not normal, did you install the oil reducers to help limit the oil pressure to the turbo if not then i would say you just blew yous seals. also make sure your return line does not have any sharp turns and is at least 1/2in if you are trying to run 3/8 you well be choking the turbo . atleast that is what mine did with the 3/8 line, i run 1/2 now and no problems ,no smoke , no oil loss.

pabel89

#24

idk why all that oil was in the turbo, i clean it up and ran for about 30 mins no oil , i just got my car back from my mechanic, mayb they move something idk but its not happenin again after i ran it.

mikecelica

#25

got your car back from the mechanic? as in already problems are beggining with the 7afte? Plus dont you think 10psi DD is a bit too much for these motors?

This post has been edited by mikecelica: Feb 15, 2008 - 8:54 PM

mikecelica

#26

Plus i was wondering can i use the stock oil pan from a 3sgte thats turbo ready? Would it fit easy?

trd94

#27

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QUOTE(mikecelica @ Feb 15, 2008 - 8:57 PM) [snapback]641975[/snapback]

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Plus i was wondering can i use the stock oil pan from a 3sgte thats turbo ready? Would it fit easy?

i dont think the 3s will bolt up to a 7a, differant motor family and 10 psi would be ok to run on a DD if it is tune good. i run mine at 10-12psi DD but i dont beat on her at every light and it only had 55,000 on her at the start of being turbo. now it is at 97,000 and ran for three years with me learning with this setup .... i think if i knew what i know now 3 years ago i would not of been worried about my rings

trd94

#28

the only reason i am did the rings and bearings is i have the motor up & out getting the head done to help with flow, and i had a set of bearing made for me in japan when i was there for work. now i should not worry about the bottom , as far as that goes, still cant put to much on the stock rods and pistons.

mikecelica

#29

I got about 105 miles on mine.. thing is i work at a toyota dealership (nothing mechanic related) just driving shuttle, picking up parts stuff like that..anyways i asked the mechanics and they all say the 7afe will not handle boost and say your gona blow your engine.. One of them actualy done it on a corolla and blew the motor at 12lbs i think... Plus what i meant was the 4agze oil pan sorry. Could i not take it off the mr2 and use it instead? We got an mr2 supercharged at work everyone uses for parts. thanks for the help

trd94

#30

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QUOTE(mikecelica @ Feb 15, 2008 - 9:14 PM) [snapback]641980[/snapback]

>
I got about 105 miles on mine.. thing is i work at a toyota dealership (nothing mechanic related) just driving shuttle, picking up parts stuff like that..anyways i asked the mechanics and they all say the 7afe will not handle boost and say your gona blow your engine.. One of them actualy done it on a corolla and blew the motor at 12lbs i think... Plus what i meant was the 4agze oil pan sorry. Could i not take it off the mr2 and use it instead? We got an mr2 supercharged at work everyone uses for parts. thanks for the help

well i can prove that the 7a well handle 17 psi , but can it take it all the time. no not with out a little help in the bottom and at a good tune 12 psi is do able . if you do the research you will find out that most motors blow not because of the turbo but because of the tune ,and the lack of doing it right the first time. i have guys at the track tell me all the time i am going to blow my motor and at the shops around here they say it cant be running with turbo, but for three years now they have been wrong. if the pan will match up with you bottom and is not to deep ,clears everything then it could work. ... if i remember correctly i think it may be to deep and wont work with your oil pump also at 105,000 i would check compression and do a timing belt ,replace any seals that leak or looks like they may leak, also do a tranny filter change if you are auto , and flush the cooling system and check for any leaks. the turbo well put more stress on your cooling system as it adds more heat in the cylinders.

This post has been edited by trd94: Feb 15, 2008 - 9:40 PM