Looking for higher # injectors?

[99 gt]

Im looking to get higher # injectors, but im not sure what to go with. With the modifications that I have.

Crower cams-I went the biggest I could without having to change the springs.
4.10 gears
Port and polished the heads
Flowmaster exhaust H-pipe
Superchip programmer

 

[Kilgore Trout]

Spend your money elsewhere, you do not need bigger injectors.

 

[white99gt]

Stock injectors are good to around the 300rwhp mark.You MAy want to go to 24's along with a tune..Because your average cammed 2v is close to 280~300rwhp..

 

[bdcardinal]

u dont need them.

 

[99 gt]

The reason i am asking is because I can only run a 15.2 with those mods. I think it could be the transmisssion but i am not for sure. It has been slipping in the morning when it is cold. I ran a 15.2 with it then I had my brother run it which has a z28 that ran low 12s, and he ran the same. Anyone have any idea whats wrong?

 

[bdcardinal]

how badly is the transmission slipping? has it been serviced recently? has the car been properly maintained?

 

[99 gt]

It only does when it is cold like sitting overnight. Reverse is fine, its only in drive that it will do it. The first time I put in gear in the norning it will just rev up like it is neutrl and not go anywhere, then I will hear a popping sound, like its popping into gearthen it will drive fine. But its only when the car has been sitting for a while. When its warm it does just fine. I bought the car used and dont know if the tranny fluid and filter has been changed ever. I have not changed them. I am changing them out tommorrow to see if that works I will get back to yall after that if it does not.

 

[bdcardinal]

when was the trans serviced last? what fluid was used?

 

[99 gt]

It was wrecked for a while when I got it so I have no idea anything about it before I got it. It hasnt been serviced for at least 5,000 miles thats how long I have had it. It now has dexron mercron I changed the fluid and filter today.

 

[bdcardinal]

It was wrecked for a while when I got it so I have no idea anything about it before I got it. It hasnt been serviced for at least 5,000 miles thats how long I have had it. It now has dexron mercron I changed the fluid and filter today.

first off, you used the wrong fluid. it takes Mercon V, theres no exception.

 

[99 gt]

what else can i do. has anyone else had this problem

 

[Kilgore Trout]

I would take it to a transmission shop. Auto transmissions are pretty tricky. Just have them check it out, shouldn't cost too much unless it needs major repairs. And make DAMN sure it has Mercon V like was said.

Oh, I just remembered there is a fix called the j-mod or something. Do a search on this board.

 

[Kilgore Trout]

Yeah, here it is... Great 4R70W site: http://www.tccoa.com/articles/tranny/index.html

This site has info on the j-mod but I am not sure if that is your problem. You should read the whole site...