newest MTI project car - ProCharged 427ci Vette
#22
Shorty Director
iTrader: (1)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by Evil Turbo SS
Thoes numbers seem kinda low for a F1 Procharged cars with thoes heads and that amount of cubes. 346-385 small bore motors with that blower are making thoes numbers. Is the car running low boost or maby the really crappy ATI twin intercoolers?
#23
TECH Regular
Join Date: Nov 2002
Location: Houston TX (Chicago/Evanston IL)
Posts: 408
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
PSJ has a car running a similar blower...
I havnt made thoes numbers yet but I have a new fast intake, front mount IC, and Cogs. I wasnt far off before I should be knocking on the vettes doorstep with a small bore stroker and ported ls1 heads. Ill let you know soon.
Speed inc did another 346 blower car that made close numbers... the car didnt have the fuel system to support it so they backed off.
I havnt made thoes numbers yet but I have a new fast intake, front mount IC, and Cogs. I wasnt far off before I should be knocking on the vettes doorstep with a small bore stroker and ported ls1 heads. Ill let you know soon.
Speed inc did another 346 blower car that made close numbers... the car didnt have the fuel system to support it so they backed off.
#24
Shorty Director
iTrader: (1)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by Evil Turbo SS
PSJ has a car running a similar blower...
I havnt made thoes numbers yet but I have a new fast intake, front mount IC, and Cogs. I wasnt far off before I should be knocking on the vettes doorstep with a small bore stroker and ported ls1 heads. Ill let you know soon.
Speed inc did another 346 blower car that made close numbers... the car didnt have the fuel system to support it so they backed off.
I havnt made thoes numbers yet but I have a new fast intake, front mount IC, and Cogs. I wasnt far off before I should be knocking on the vettes doorstep with a small bore stroker and ported ls1 heads. Ill let you know soon.
Speed inc did another 346 blower car that made close numbers... the car didnt have the fuel system to support it so they backed off.
#26
TECH Regular
Join Date: Nov 2002
Location: Houston TX (Chicago/Evanston IL)
Posts: 408
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Im not sure. I feel that thoes numbers are average for a motor of that vettes size with that blower. Nothing wrong with it, just what it should do with room to improve.
#28
TECH Addict
iTrader: (14)
Join Date: Nov 2002
Location: hurst tx
Posts: 2,560
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Stroke would help it make alot of torque, and woudlnt hurt power.
remember standing up on your bicycle to go faster, you were increasing stroke and it gave you more torque to get moving
ed
remember standing up on your bicycle to go faster, you were increasing stroke and it gave you more torque to get moving
ed
#29
10 Second Club
iTrader: (2)
Join Date: Sep 2002
Location: Orlando, Florida
Posts: 6,368
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
makes me think a 408 isn't really worth it when you can almost get the same power with a forged 348 but oh well, still impressive and probably VERY fun to drive on the street!
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
#31
TECH Regular
Join Date: Nov 2002
Location: Houston TX (Chicago/Evanston IL)
Posts: 408
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Didnt Rob Raymer make about the same power with a stock motor?
Again I said close to..... Look at PSJ car...........
That Firebird is making 1100rwhp with a 390 cid motor and a F1r....
Ill bet the farm that Im within 20 rwhp of the MTI car when mine is done!
Again I said close to..... Look at PSJ car...........
That Firebird is making 1100rwhp with a 390 cid motor and a F1r....
Ill bet the farm that Im within 20 rwhp of the MTI car when mine is done!
#32
TECH Junkie
iTrader: (2)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I'd imagine other cars making more power w/ close to the same setup are running an all-out tune and more boost. If they used 104 octane, then it is obviously not a full out race tune. I'd guess they'd use something more like 116 if they were trying to get the most out of it.
This car appears to be a street/road-race car that can probably tear some **** up at the drag strip as well. I'd bet it could be driven home (legally) afterwards too.
Ross
This car appears to be a street/road-race car that can probably tear some **** up at the drag strip as well. I'd bet it could be driven home (legally) afterwards too.
Ross
#35
TECH Enthusiast
iTrader: (1)
Join Date: Oct 2002
Location: Houston / Pearland
Posts: 678
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by Nine Ball
Its actually MTI's car, Jayson owns it. The car will be for sale soon however, as his next project vehicle shows up (yellow C6 vette)
104 octane race fuel
104 octane race fuel
#37
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I have found with forced induction that stroke is'nt necessarily your friend...
The shorter strokes slower piston speed, longer TDC and BDC dwell really helps..
Also the cc volume is much lower at the same c:r which means more quench as well as a higher percentage of the exhaust expelled.
The shorter strokes slower piston speed, longer TDC and BDC dwell really helps..
Also the cc volume is much lower at the same c:r which means more quench as well as a higher percentage of the exhaust expelled.
#39
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Cubes yes... Stroke can be a pain sometimes.. There are so many factors to engine power outputs that it is hard to just take on variable and say.. "you always want to run this"....
I know one thing.. For the less than the cost of a stroker I can make more power than most people on a FI stroker.
Getting that long stroke to breath as well as a shorter stroke across as wide of an RPM range requires alot of head work and a shorter stroke with the same head work will still have a higher VE.
With a shorter stroke you can run more boost at the same CR or more CR at the same boost since they are more resistant to knock.
You also don't have to run as wide a lobe seperation to avoid reversion with a turbo..
Less stress on the rods and pistons due to less stroke created stresses means you can lean on the same grade of parts a bit harder with the boost...
I guess starting from scratch on a suped or turbod motor I cant see a long stroke being too far up my list... A naturally aspirated V8.. You bet..
Maybe it makes more sense on a supercharged car due to the fixed compressor rpm vs crank rpm... I'd still personally just run a 6.0 block with a forged stock length crank..
The lowest I think I can get my turbos to run reliably is 15psi... Even that low it will be pretty mean... I'm looking at the entire system like I did to get 600+ whp from a 2.0.... Yes it will be single digit car...
I know one thing.. For the less than the cost of a stroker I can make more power than most people on a FI stroker.
Getting that long stroke to breath as well as a shorter stroke across as wide of an RPM range requires alot of head work and a shorter stroke with the same head work will still have a higher VE.
With a shorter stroke you can run more boost at the same CR or more CR at the same boost since they are more resistant to knock.
You also don't have to run as wide a lobe seperation to avoid reversion with a turbo..
Less stress on the rods and pistons due to less stroke created stresses means you can lean on the same grade of parts a bit harder with the boost...
I guess starting from scratch on a suped or turbod motor I cant see a long stroke being too far up my list... A naturally aspirated V8.. You bet..
Maybe it makes more sense on a supercharged car due to the fixed compressor rpm vs crank rpm... I'd still personally just run a 6.0 block with a forged stock length crank..
The lowest I think I can get my turbos to run reliably is 15psi... Even that low it will be pretty mean... I'm looking at the entire system like I did to get 600+ whp from a 2.0.... Yes it will be single digit car...