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newest MTI project car - ProCharged 427ci Vette

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Old 07-14-2004, 07:51 PM
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low boost, conservative pump gas tune, 8 or 10 ribbed belt insted of cogs are my guess.
Old 07-14-2004, 08:09 PM
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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?
Where? Can you link us?
Old 07-14-2004, 08:26 PM
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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.
Old 07-14-2004, 08:28 PM
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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.
Ok.. How much boost was the MTI car running?
Old 07-14-2004, 08:48 PM
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I replied to the other threads, but again, the TGR SRK Body Package = .
Old 07-14-2004, 08:59 PM
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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.
Old 07-14-2004, 09:02 PM
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I wish I could afford the T1 suspension. Like $3k..
Old 07-14-2004, 11:50 PM
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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
Old 07-15-2004, 04:37 AM
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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!
Old 07-15-2004, 08:28 AM
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again i want to see thise other 780+ rwhp stock cube motors running around.

also someone said it had a conservative pump gas tune. then why the hell did MTI run 104 octane race fuel? lol.
Old 07-15-2004, 09:36 AM
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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!
Old 07-15-2004, 01:22 PM
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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
Old 07-15-2004, 01:44 PM
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Keep in mind fellas, this car pulled that number thru catalytics. It was also tuned on 93 octane, as Car & Driver made it mandatory that the vehicles had to run on pump gas. Still uses a ribbed belt, not a cog.
Old 07-15-2004, 01:52 PM
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Tony,

So those #'s were made on pump gas??? I dont care what anyone says i want that car....... id drive it every day......... I think im going to be in Hoston on the 26th and 27th... we should do somethin.
Kyle
Old 07-15-2004, 02:07 PM
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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
That was actually on pump gas .... 93 octane...... there is MUCH more power with more octane
Old 07-15-2004, 05:03 PM
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Now the numbers are impressive....... Its a real street car and thats why the numbers seemed low for a F1 Blower.
Old 07-15-2004, 05:06 PM
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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.
Old 07-15-2004, 06:05 PM
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The question is how much boost? Guys remember we have a TT 408ci car putting out 1100rwhp at 13psi. Cubes is still your friend. How many 348ci'rs making that kind of power on such low boost?
Old 07-15-2004, 06:32 PM
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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...
Old 07-15-2004, 06:34 PM
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I wish I could have that car. Nice numbers for a true street car.


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