alright so i have a 08 ss/tc with some mods. 5th gear recently went on me and i had a a new trans rebuilt for me. but not reverse is really tough to shift into. 1st gear isnt to bad but a ltille stiffer then when i had it before, all gears shifted easily. also they said they were testing it to make sure all gears were good and were telling me about there research on the car cuz it is quick. they said a stock one comes at 12 psi. they told me mines at 30 psi. im new to all this so it didnt really ring any bells. but i been thinking about it and my guage only goes to 30psi and im thinking 30 psi might be way to much of a boost coukld that be affected by trans work being done. also when shifting the car bumps kinda like in first when your not giving it enoguh gas and it wants to stall on u like jerking is that bad or normal in the higher gears or what. im new to all this sorry for the newbie questions and thanks!

 

The bucking in first is normal. Not many can rebuild the f35 transmission.

 

yea if i give it just a tad of gas while shifting in the other gears its a smooth shift

 

ohh from south jersey i see im from ocean county a town called brick =D

 

I'm 5 miles from Atlantic city. Who did your rebuild?

 

a place called fort wayne transmission i called a performance shop and these guys were recomended because that shop sent out transmisions to be rebuilt. they iddint do it themselves

 

Oh ok. Yea I just had a trans put in in November. I didn't want to risk a rebuild so I grabbed a used one from another member on here.

 

ye hopefully mine will last. i just got the car and 4 days later 5th gear went........
also do you know anything about the boost is 30 psi to much? i dont want to be taking off hitting that boost and it blow my stuff up lol im not sure if its suppose to be that high

 

Unless you're turbo swapped you're more that likely not hitting 30psi. I know you wouldn't be holding 30psi on a stock ko4 turbo, might be able to spike to 30psi

 

Also never ever ever got WOT below 3.5k rpm. I generally don't go further than half throttle if I'm below 3.5krpm

 

dont know what WOT is lol but yea when im in higher rpms the gauge goes to 30 psi till i shift then it goes back up to 30 psi again not instantly it builds its way there but quick

also my 5th gear blew again any ideas what could be causing this

 

it has a EFR/ZFR 6258 Turbo

 

If you dont have a smooth boost ramp, your trans will go boom again. Do you know who tuned it?

 

even in 5th gear? whats a boost ramp? and not yet working on finding out. sorry im new to this

 

This is very important information when talking about transmissions. 30psi is possible with the ZFR 6258. WOT + WIDE OPEN THROTTLE aka pedal to the floor, never never below 3.5k and with the ZFR if there isn't a boost ramp you need to roll into the throttle a lot easier not slam it to the floor

This is also an important factor

 

the first time it blew i was on the high way not going crazy i was slowley acelerating to pass a car to change lanes.
second time i was more WOT.

is a smooth ramp somthing i can get for the car is is that something i have to do while driving

i feel like such an idiot i dont know anything lol

 

a smooth boost ramp can be tuned for, but the tuner needs to know what they're doing.

Dont feel like an idiot you just bought a semi highly modified LNF

 

You would need to be retuned or do what ecaulk said and roll into boost. Dont just slam the pedal to the floor. Ease into it.

 

Stock is 15ish psi. They look at a stock sc boost levels?

 

general price of a tune? and anyone here know of a good place near fort wayne indiana

 

idk what zzp charges but they are the company who works with borg warner for that turbo and they are the ones who sell the turbo. if i were you id make the 2-3 hour trip up to their shop and get tuned by them

 

would make the most sense considring all mods were done by them so im pretty sure they tuned it as well but might need re tuning im in contact with them so ill see what i can find out. i cant keep blowing 5th gear lol but idont want to drive like a grandpa in this type of car either fearing that im going to blow 5th gear all the time

 

yeah man i dont blame you. there might be something else going on though because i havent really heard of anybody blowing 5th gear with a stock turbo let alone the zfr turbo that you have, its usually 3rd gear that goes haha. but yeah see what they have to say and then id go from there man

 

If you stop going full boost in 5th gear below 4k (~130 iirc) you'll save your 5th gear. Never never go full boost in 5th gear unless you just hit redline from 4th gear.

That being said, call ZZP get a tune scheduled and tell them you would like it a little conservative and would like to not have to replace the transmission again. They'll take care of the rest.

 

thanks for the tips. and by doing that will it make me lose power or just help me in my higher gears from blowing the transmission