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Let me know what you think of my planned engine build

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Old Mar 28, 2007 | 02:52 PM
  #1  
Batass's Avatar
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From: Benzie, MI
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Let me know what you think of my planned engine build

4 bolt 383 forged rotating assy
RHS 200 iron heads
Vortech v-1 s-trim (7-8 lbs of boost)
9:1 cr
cam undecided (awaiting response from comp)
performer rpm
super comp 1 3/4 headers
blow through mighty demon
msd distributor and 6al
snow performance water/meth injection
3" dual custom exhaust through dynomax super turbos
th400 or 350 trans stall 2800?
12 bolt rear with true trac
tires undecided

I currently have the supercharger, intake, meth inj, ignition, headers, and,mufflers.
I'm leaving right now to put a deposit on the short block to be built.

Aiming for a wild street car. Not a daily driver.
The engine builder has an engine dyno so I'll dyno it and post the results.

Think this is a good combo so far? The engine builder thinks so.
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Old Mar 28, 2007 | 08:21 PM
  #2  
5.7iroc-02ws6's Avatar
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Joined: Dec 2005
Posts: 124
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Car: 1988 IROC/02 WS6
Engine: zz3 crate w/12 psi ATI and stock ls1
Transmission: 700r4 w/2800 stall and m6
Axle/Gears: 3:42 10 bolt-both cars
Re: Let me know what you think of my planned engine build

That ought to break some stuff
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Old Mar 29, 2007 | 08:52 PM
  #3  
sleepybu's Avatar
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Joined: Dec 2002
Posts: 531
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From: BC Canada
Car: 81Malibu
Engine: SBC 355
Transmission: TH400
Re: Let me know what you think of my planned engine build

Originally Posted by 5.7iroc-02ws6
That ought to break some stuff

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Old Mar 29, 2007 | 11:20 PM
  #4  
junkcltr's Avatar
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From: garage
Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Re: Let me know what you think of my planned engine build

I would ditch the MSD 6AL and go with a crane box and crane 92 coil. It will light the fuel/air better. Everything else sounds good.
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Old Mar 30, 2007 | 11:27 AM
  #5  
BDR's Avatar
BDR
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Joined: Apr 2004
Posts: 380
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From: San Antonio Texas
Car: '91 Camaro
Engine: Mild 283
Transmission: TH400
Re: Let me know what you think of my planned engine build

go with either CSU or C&S for the blow thru carb.
Get a MSD 6BTM for your ignition/boost retard needs
you need a boost referenced FPR

the rest sounds ok.
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Old Mar 30, 2007 | 12:24 PM
  #6  
Batass's Avatar
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Joined: Mar 2005
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From: Benzie, MI
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: Let me know what you think of my planned engine build

I have the BTM and a boost referenced fpr, barry grant makes a version of the mighty demon especially for blow through situations, but I forgot about the carb shop...i'll look into them.
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Old Apr 6, 2007 | 07:41 AM
  #7  
Tech @ BG's Avatar
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From: Dahlonega, GA
Re: Let me know what you think of my planned engine build

Whomever you decide to use for a carburetor make sure you let them know whether you're using an enclosure or a bonnet. This will make a big difference in the carburetor calibration.
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Old Apr 6, 2007 | 11:06 AM
  #8  
Batass's Avatar
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Joined: Mar 2005
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From: Benzie, MI
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: Let me know what you think of my planned engine build

You know I didn't think about that. Thanks. Although right now I'm running a self modified holley and I didn't screw with anything fuel circuit wise, and it runs great except at part throttle, and it leaks fuel from the shaft.
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Old Apr 6, 2007 | 11:09 AM
  #9  
Tech @ BG's Avatar
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From: Dahlonega, GA
Re: Let me know what you think of my planned engine build

If you haven't modified the baseplate to pressurize the throttle shafts, enclosing the entire carburetor in a box will eliminate that problem.

Also, different types of bonnets, and boost levels will change the carburetors tune-up.
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Old Apr 6, 2007 | 11:16 AM
  #10  
askulte's Avatar
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Joined: Sep 1999
Posts: 888
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From: West Hartford, CT
Car: '89 Z28tt
Engine: Dart Little M Twin Turbo
Transmission: T56
Re: Let me know what you think of my planned engine build

I'd change to aluminum heads, so that you can run a few degrees more timing (besides saving 40 lbs off the nose of the car)... Going from 29 to 32 deg, I picked up 30 hp, at just 4 psi...
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Old Apr 6, 2007 | 08:40 PM
  #11  
vwdave's Avatar
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From: miami, florida
Re: Let me know what you think of my planned engine build

Running a little less compression wouldnt hurt either.
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Old Apr 6, 2007 | 10:36 PM
  #12  
84350twinturbo's Avatar
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Joined: Feb 2007
Posts: 35
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From: cleveland ,ohio
Car: 1984 Camaro z28
Engine: 350 TPI Twin T70 turbos
Transmission: th400
Axle/Gears: stock putting in a 9" with 3.89
Re: Let me know what you think of my planned engine build

the only way to get the full effect from an ignition set up is to use all the same parts so all msd or crane for my twin turbo set up im using a MSD 6 BTM, msd-8226 dual connection coil, and MSD HEI distributor, that will be great. also if you are running a boosted application you need to drop the compression under 9. you cant have it that high. even that little bit can blow your motor. you cant run aluminium pistons you need forged. you are on the right track. cant wait to see the numbers.
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