1GGTE 17psi stock

[cagiva97]

boosted the stock 1G to 17psi tonight no cuts or bullshit just wondering if this is a safe idea ...? i dont know what injectors i have as they are multi colours ... i figured if boost/afm/revs/ didnt stop anything it might be ok to run ..? can anyone help me here what is safe MAXX boost i can run .. i have bov boost T and gauge thats the only mods as far as i know of and the heads and turbs were recond only last year .... any help would be good .. common sense is telling me to turn it down to 12/14psi but my pukkered but hole wants me to keep it at 17 lol please help

[Pube]

all depends on how long you want the turbos to last. Id suggest around 15psi max but Rod (thetoyoman) has shown that 16-17psi is possible.

[woggin]

i am a living result of 22psi on the stock 1g..only mods were pod filter, xhaust, safc and a manual boost controller....ran fine on 22psi....i only kept it at 22psi for a day or two...then back down to 15!!

good luck though....more pressure=more prone to turbo failure!!

[cagiva97]

yeah well i dont care bout the twins but still dont want premature failure of anything if i can help it ..... ill just turn it back to 14 till i have fmic and safc lke woggin has told me about on a diff post i just wanted to see what the old gal could do more than anything i guess lol thanks for the help guys

[amon]

Mmmm multi colored injectors that cant be good/right??? what colors are in it.

Cheers Amon

[TheToyman75]

cagiva97,

What series of 1G is yours ? If its a gen 3 with the green injectors I would think its ok to run it at 17PSI, BUT you want to get a dyno power run/assess done as it may be reying on your knock controland require a base timing adjustment

If its Gen 1 or 2 with the yellow injectors I wouldn't go near 17PSI as it just won't be able to supply enough fuel.

[vinno]

gen 3 can handle it..

my brother's 1g-gze ran at 17 for about 4 or 5 months, engine had no troubles apart from heat as intercooling was a problem but even still the charger died before anything else..

[cagiva97]

mine is a gen 3 ... i was bit worried about heat and fueling ..... i dont mind so much if turbs go but i am really concerned about engine itself failing or something serious going wrong ..... i am chasing a cheap as chipps front mount too if anyone has one ... and i mean cheap as hell lol thanks for all the support guys it is very much appreciated

[Howieau]

I have no experience with the 1GGTE, and I dont know the way in which the turbos fail under higher boost pressures, but keep in mind you don't want anything in the compressor side of your turbo breaking and then going into your engine and causing more damage. Just remember, you might not mind your turbos failing but it may cause other problems which you wont want

Also, it will also depend on the condition of your stock engine. If it has been well looked after and everything is in great working order than it should be able to hold the boost better than an engine that isn't in as good condition. A previous owner might have had the engine apart sometime and not put something back together correctly which could cause a failure under higher boost. If you aren't 100% sure of what shape your engine is in, then putting more boost in will be a risk that youll decide if you want to take or not. I presume these guys are giving you ideas of the max boost level given that your engine is in good shape.

I hope it holds up for ya.
Just a few points to consider.

(Dont mean to burst your bubble haha, but I upped my boost to a level someone said would be ok on my 3SGTE once, but my engine wasn't in good shape which I didnt know and blew a head gasket at 15psi)

[Kyosho]

From what I've been told, the stock turbos are steel wheeled, and not that prone to failure from high boost.

[woggin]

^^^ i wish they were steel wheeled, they are ceramic wheeled and they are epoxied onto the shaft!!!.....you'll hit boost cut aswell, after 15psi i believe!!

[cagiva97]

well i have taken everyones advice on here and put it back to a safeish 14psi .. i dont know if they are steel or ceramic .. i thought they were steel as i saw a post on here where old mate had taken turbos off all three gens and they were all steel only diff was wastegates and sizes .... oh well either way im just gonna keep it in the world of the working motors and eventually get big single and all the bits .... even at 14psi its no slouch but i just have the boost bug now lol .... the only thing i dont like is how softly it comes on boost .... gives you a slight kick but nothing compared to a manual turbo car with less boost ... but i guess thats the luxury side of the deal huh

[TheToyman75]

^^^ i wish they were steel wheeled, they are ceramic wheeled and they are epoxied onto the shaft!!!.....you'll hit boost cut aswell, after 15psi i believe!!

Woggin,

All factory 1G Turbo's are steel wheeled and boost cut is not boost related but triggered by airflow through the AFM. Most Gen 3 1G's will boostcut around 18PSI !

A Healthy Gen 3 1G should run at 17psi (throught the stock turbos) without any trouble at all but as I mentioned earlier I strongly suggest getting a power run done to confirm all is well. My stock 1G still runs 1.25bar (Just over 18psi) all the time, I do have a low boost setting but I have never used it. The only reason I had to change the turbo's is because the first set suffered from overspeeding due to a massive boost leak.

[cagiva97]

thetoyman75 what do mods to you have on your car no matter how small lol my afm is a bit wierd it is set locked clockwise and thats the only place that the car drives right i did try adjusting the dizzy and getting it to run at the "69"mm mark on the afm itself .. it would run but then when you gave it some on 10psi it would go into spaz mode and drive like a lancer lol .... im no good with timing i wont set timing or anything as i simply dont know enough about it .... i dont have the spare cash atm to get it to a dyno to get it tuned and even when i do get the cash i dont trust the likes of ultratune to do it right ... i know the afm shouldny be full lock either way so this leads me to think something is really out of wack with my car i have a dyno sheet from the old owner about 3months b4 i got it and with reco heads turbs it was 160 something kw but dont know if he tampered with it since but it doesnt feel that ballsy ..

[TheToyman75]

cagiva97,

A dyno assess is alot cheaper than an engine rebuild.

As for the mods to my 1G if you read the RA28 thread thats linked in my signature it has a detailed progression of the work on the 1G.