305 tpi engine
07-17-2010, 05:58 AM
#1
Staging Lane
Thread Starter
iTrader: (4)
Join Date: Nov 2008
Posts: 50
Likes: 0
Received 0 Likes
on
0 Posts
305 tpi engine i am going to be getting a 91 formula with a 305 tpi engine and i was wondering if the engine or is worth keeping? would i be able to get any serious hp and torque out of it ..the car has vortech heads and a zz4 cam already so are the 305 tpi engine capable of good hp and torque 300-400?? if so what mods would be required
07-17-2010, 04:01 PM
#2
12 Second Club
Join Date: Sep 2008
Location: Denmark
Posts: 158
Likes: 0
Received 0 Likes
on
0 Posts
Not really. the engine is good for what it was made for.. But not for all out performance. Especially not the tpi system since it loose breath at 4500rpm approx.
I have a 305 with headers, true duals, performer intake, Hei dialed in perfectly and a nice quadrajet. People are surprised of tis performance, but it will never become a good street racing engine cost wise to a 350/383
I have a 305 with headers, true duals, performer intake, Hei dialed in perfectly and a nice quadrajet. People are surprised of tis performance, but it will never become a good street racing engine cost wise to a 350/383
07-18-2010, 07:29 AM
#4
Swap over everything to a 350 and you will have a 12 sec car. I have seen a zz4 crate motor run 12's in an f-body. With the zz4 crate having alum. l98 heads and you have the vortecs, the vortecs might edge out the l98 heads with it having a little bit bigger intake runner and better port design.
The 305 can be made to run well into the 13's on motor maybe a high 12 if done correctly but its a waste of time in my opinion. Me and my buddies had a 305 tpi car running 12.1 to 12.2 in the quarter on a 150 shot back in the day which was quick back then. Man, we took some money from people with that car!
The 305 can be made to run well into the 13's on motor maybe a high 12 if done correctly but its a waste of time in my opinion. Me and my buddies had a 305 tpi car running 12.1 to 12.2 in the quarter on a 150 shot back in the day which was quick back then. Man, we took some money from people with that car!
07-21-2010, 05:14 AM
#7
Staging Lane
Join Date: Jul 2010
Location: Elizabethtown, KY
Posts: 66
Likes: 0
Received 0 Likes
on
0 Posts
The LB9 can be a fun little motor. I've got one in my 85 T/A, and with what little work I have in it, it'll hang with most Mustangs around here, at a stop light style race, and knock down 28 mpg on the highway, if I let it. It won't ever be a real power house though, as it's just not economical, that's why my plans for it are a 6.0 swap.
Trending Topics
07-25-2010, 09:45 PM
#8
Staging Lane
Thread Starter
iTrader: (4)
Join Date: Nov 2008
Posts: 50
Likes: 0
Received 0 Likes
on
0 Posts
i really want to swap in a 6.0 as well but i am going to keep a tpi engine in it because i have an old friend that swears his car is the fastest tpi around and that my ls1 could only beat him by 1 car and a half and ive rapped him many times lol so i want to shut him up with the same engine ..he has a full bolt on l98 engine with heads and cam
07-28-2010, 03:49 PM
#14
12 Second Club
Join Date: Sep 2008
Location: Denmark
Posts: 158
Likes: 0
Received 0 Likes
on
0 Posts
original 305.. It's an lg4 engine.. I have a performer plus cam laying around i could swap in it if it wouldnt hurt the fuel consumption but if they're basically the same cam it wouldnt be worth the effort. I will change the valve seals though.. They're leaking which is a common fault on these 305 engines
07-28-2010, 06:29 PM
#15
original 305.. It's an lg4 engine.. I have a performer plus cam laying around i could swap in it if it wouldnt hurt the fuel consumption but if they're basically the same cam it wouldnt be worth the effort. I will change the valve seals though.. They're leaking which is a common fault on these 305 engines
