just pulled my 79's motor yesterday

SpeedSicks · February 12th, 2008, 05:14 PM

I'm looking forward to chatting with you all, seems to be a lot of knowledge on these forums. i hope to contribute to it

.

i have just started to build my track car, it was once my DD but hasn't run for years now. its a 1979 coupe 2.3t completely stock. carbed, hot-turbo(no intercooler), 4spd manual.

as far as motor goes i plan to rebuild w/ forged internals, a rad cam, nice head, bigger turbo (undecided what one, most likely hx35), i will probably run the stock turbo for now cuz it was just rebuilt before the motor killed over. and also add an intercooler, and i'll make my own exhaust.

any suggestions, info, or whatever is appreciated.

intentions are to have a track car for miller motorsports park, and also drag with it at rocky mountain raceway.

what are your opinions on the 2.5stroker i've read up on, is it worth the cost? and also i think i'm staying SOHC..i think the DOHC would interfere with the carb..and custom intake manifold..no thanks haha.

thanks all

rodthrower2.3T · February 12th, 2008, 07:40 PM

are you going to keep it carbed?
those old draw thru carb set ups are kind cool
are you going to convert it to blow thru? if you going to run a holset your going to have to....

SpeedSicks · February 14th, 2008, 02:35 PM

yes i plan on leaving it carbed!

oh really? wouldn't it do the same thing.. this is exactly the info i need.

i would almost think that i would get a more accurate amount of fuel using a draw thru set up, having the turbo suck air through the carb. rather than pushing boosted air through the carb? if it would even make a difference..hmm more info anyone!?

my thoughts on that are that:
you never(through my experience) push boosted air through a MAF sensor, you draw atmosphere air through the MAF sensor..then boost that air after it has already taken its reading.

TurboLX · February 14th, 2008, 03:00 PM

your carb'd.... no Engine Control management at all

SpeedSicks · February 14th, 2008, 04:46 PM

Originally Posted by TurboLX

your carb'd.... no Engine Control management at all

lol yes i realize that. haha ha. it was a comparison, using what i know.

I realize i have a carb lol. thanks

now in my current situation, i would assume that you shouldn't push boosted air through the carb. just like you wouldn't push boosted air through the MAF on a computer controlled car. right?

i've never modded a boosted/carbed car. my only tuning experience comes from newer cars.

rodthrower mention a blow thru conversion, it just didn't make sense to me?

rodthrower2.3T · February 15th, 2008, 03:29 AM

most people with high power carb set ups do a blow thru
pushing the air through the carb instead of sucking it through the turbo

check out turboford.org theres a couple people with big hp carb cars
mainly in pintos

alot of MAF people do blow though MAFs so that you dont have to recirculate the BOV air, like a BPV

this guy is a regular on TF

YouTube - 87 turbo coupe walk around

he has a blow thru set up, check out his other vids too

TurboLX · February 15th, 2008, 07:50 AM

Thats Sleepert-birds car who is my second admin on my site and which now has a Chevy 305 in it

i have heard of some dis-advantages with the original 1979 2.3T becuase of its setup

rodthrower2.3T · February 15th, 2008, 12:39 PM

turbo-have you been paying attention? lol
we have been talking about how the original 79 setup is a DRAW THRU setup
everyone pretty much converts to a BLOW THRU set up ie. the disadvantages and advantages

look at any carbed V8 forced induction car or any carbed 2.3T cars

the original setup puts the turbo on the intake side of the motor, totally different setup

rodthrower2.3T · February 15th, 2008, 12:44 PM

check this out, here is a stock setup for a draw thru

places the turbo on drivers side of car

My 1980 Mercury Capri Turbo

people supposedly have been able to get decent times out of stock setup and i quote from TF "Having owned one in the past I know you could get a low 13/12.90 out of stock setup leaned on with decent amount of boost and pure C 16."

rodthrower2.3T · February 15th, 2008, 12:49 PM

thats not my capri either! obviously

TurboLX · February 15th, 2008, 01:28 PM

yea i know what your talking about, the original 79 2.3T was a deiiferent setup, thats what i siad

SpeedSicks · February 15th, 2008, 06:15 PM

nice! thanks a ton, and yes i figured the main disadvantage of the 79 carbed motor would be turbo placement. i planned on mounting the turbo on the exhaust side of the motor, and it would be a lot easier to run a blow through setup. no doubt! i just didn't think you could, guess it makes sense.

preference in manufacturer for rods and pistons anyone? im shooting for high boost in the long run, keep in mind.

TurboLX · February 15th, 2008, 06:27 PM

Most guys with TC's and SVOs are running stock pistons on 25psi

im running 28psi on JE pistons and Eagle H beam Rods

SpeedSicks · February 15th, 2008, 06:32 PM

true true, i have heard of ppl pushing high boost on stock, but that scares me haha :p the motor is killed over anyway lol, so i'll be replacing them aftermarket no matter what. hmm.. your car runs an 8 sec. quarter mile 8-) ya those internals are probably good enough for me. ha! again thanks for the input guys

TurboLX · February 15th, 2008, 06:44 PM

no time slip not for that car lol

SpeedSicks · February 15th, 2008, 06:55 PM

oh i see lol, well still they'll be solid enough. i'm more worried about finding a nice head, and actually full valvetrain and that wont drain my bank haha. and a cam, cuz my stock one isn't pretty. i think my motor was deprived of oil for the last part of its life lol.

TurboLX · February 15th, 2008, 07:06 PM

get a TC head, no need for aluminum

CHA CHING!

rodthrower2.3T · February 16th, 2008, 04:21 PM

when most people go aftermarket alot of them run JE,CHP, TRW, speed pro, diamond etc... pistons with crower sportsman rods

SpeedSicks · February 21st, 2008, 05:16 PM

just got my turbo!

i'm unsure of the make or what model turbo it is. but its big, not too big for what i want though. i think its a mitsubishi turbo, it came out of a Cat 320 Excavator ;-p. it is in great condition, and i think it will work awesome.

it has the divided exhaust housing like the holsets have, so i think i'll just grind the divider back and give it an edge. i planned on a little port and polish anyway.

rodthrower2.3T · February 23rd, 2008, 02:41 PM

Build a paired runner header leave that split scroll housing alone! spools alot faster, thats the whole point of the split scroll

you only have to mill it when you run an internal wastegate with a open collector header or stock exhaust manifold but it will also suffer from slightly slower spool times

check into some split scroll headers and not all holsets have split scroll housings

for cam selection and porting check out boport flow development, - BOPORT Flow Development - Fremont CA
alot of people run the FMS a-237 and 227 and check out esslingerracing.com for more valvetrain, big dollar heads and other misc crap

stay away from the ranger roller thing IMO yeah its a roller, but its got no lift etc bla bla bla bla bla

February 12th, 2008, 05:14 PM	#1
SpeedSicks Newbie '79 2.3 Turbo Stang Coupe Working on it... Join Date: Feb 2008 Location: Riverton Posts: 20	just pulled my 79's motor yesterday I'm looking forward to chatting with you all, seems to be a lot of knowledge on these forums. i hope to contribute to it . i have just started to build my track car, it was once my DD but hasn't run for years now. its a 1979 coupe 2.3t completely stock. carbed, hot-turbo(no intercooler), 4spd manual. as far as motor goes i plan to rebuild w/ forged internals, a rad cam, nice head, bigger turbo (undecided what one, most likely hx35), i will probably run the stock turbo for now cuz it was just rebuilt before the motor killed over. and also add an intercooler, and i'll make my own exhaust. any suggestions, info, or whatever is appreciated. intentions are to have a track car for miller motorsports park, and also drag with it at rocky mountain raceway. what are your opinions on the 2.5stroker i've read up on, is it worth the cost? and also i think i'm staying SOHC..i think the DOHC would interfere with the carb..and custom intake manifold..no thanks haha. thanks all

February 14th, 2008, 02:35 PM	#3
SpeedSicks Newbie '79 2.3 Turbo Stang Coupe Working on it... Join Date: Feb 2008 Location: Riverton Posts: 20	yes i plan on leaving it carbed! oh really? wouldn't it do the same thing.. this is exactly the info i need. i would almost think that i would get a more accurate amount of fuel using a draw thru set up, having the turbo suck air through the carb. rather than pushing boosted air through the carb? if it would even make a difference..hmm more info anyone!? my thoughts on that are that: you never(through my experience) push boosted air through a MAF sensor, you draw atmosphere air through the MAF sensor..then boost that air after it has already taken its reading. Last edited by SpeedSicks : February 14th, 2008 at 02:39 PM.

February 14th, 2008, 03:00 PM	#4
TurboLX IT'S TURBO TIME 1990 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,643	your carb'd.... no Engine Control management at all __________________ *Put up, Shut up, Line Up And Get Beat Up!!!*

February 15th, 2008, 07:50 AM	#7
TurboLX IT'S TURBO TIME 1990 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,643	Thats Sleepert-birds car who is my second admin on my site and which now has a Chevy 305 in it i have heard of some dis-advantages with the original 1979 2.3T becuase of its setup __________________ *Put up, Shut up, Line Up And Get Beat Up!!!*

February 15th, 2008, 01:28 PM	#11
TurboLX IT'S TURBO TIME 1990 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,643	yea i know what your talking about, the original 79 2.3T was a deiiferent setup, thats what i siad __________________ *Put up, Shut up, Line Up And Get Beat Up!!!*

February 12th, 2008, 07:40 PM	#2
rodthrower2.3T Regular 88 TurboChicken 8.40/83.4 Join Date: Sep 2007 Location: hobart, IN~W.Lafayette@Purdue Posts: 147	are you going to keep it carbed? those old draw thru carb set ups are kind cool are you going to convert it to blow thru? if you going to run a holset your going to have to....

February 15th, 2008, 12:39 PM	#8
rodthrower2.3T Regular 88 TurboChicken 8.40/83.4 Join Date: Sep 2007 Location: hobart, IN~W.Lafayette@Purdue Posts: 147	turbo-have you been paying attention? lol we have been talking about how the original 79 setup is a DRAW THRU setup everyone pretty much converts to a BLOW THRU set up ie. the disadvantages and advantages look at any carbed V8 forced induction car or any carbed 2.3T cars the original setup puts the turbo on the intake side of the motor, totally different setup

February 15th, 2008, 12:44 PM	#9
rodthrower2.3T Regular 88 TurboChicken 8.40/83.4 Join Date: Sep 2007 Location: hobart, IN~W.Lafayette@Purdue Posts: 147	check this out, here is a stock setup for a draw thru places the turbo on drivers side of car My 1980 Mercury Capri Turbo people supposedly have been able to get decent times out of stock setup and i quote from TF "Having owned one in the past I know you could get a low 13/12.90 out of stock setup leaned on with decent amount of boost and pure C 16."

February 15th, 2008, 12:49 PM	#10
rodthrower2.3T Regular 88 TurboChicken 8.40/83.4 Join Date: Sep 2007 Location: hobart, IN~W.Lafayette@Purdue Posts: 147	thats not my capri either! obviously

February 15th, 2008, 06:15 PM	#12
SpeedSicks Newbie '79 2.3 Turbo Stang Coupe Working on it... Join Date: Feb 2008 Location: Riverton Posts: 20	nice! thanks a ton, and yes i figured the main disadvantage of the 79 carbed motor would be turbo placement. i planned on mounting the turbo on the exhaust side of the motor, and it would be a lot easier to run a blow through setup. no doubt! i just didn't think you could, guess it makes sense. preference in manufacturer for rods and pistons anyone? im shooting for high boost in the long run, keep in mind.

February 15th, 2008, 06:27 PM	#13
TurboLX IT'S TURBO TIME 1990 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,643	Most guys with TC's and SVOs are running stock pistons on 25psi im running 28psi on JE pistons and Eagle H beam Rods __________________ *Put up, Shut up, Line Up And Get Beat Up!!!*

February 15th, 2008, 06:32 PM	#14
SpeedSicks Newbie '79 2.3 Turbo Stang Coupe Working on it... Join Date: Feb 2008 Location: Riverton Posts: 20	true true, i have heard of ppl pushing high boost on stock, but that scares me haha :p the motor is killed over anyway lol, so i'll be replacing them aftermarket no matter what. hmm.. your car runs an 8 sec. quarter mile 8-) ya those internals are probably good enough for me. ha! again thanks for the input guys

February 15th, 2008, 06:44 PM	#15
TurboLX IT'S TURBO TIME 1990 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,643	no time slip not for that car lol __________________ *Put up, Shut up, Line Up And Get Beat Up!!!*

February 15th, 2008, 06:55 PM	#16
SpeedSicks Newbie '79 2.3 Turbo Stang Coupe Working on it... Join Date: Feb 2008 Location: Riverton Posts: 20	oh i see lol, well still they'll be solid enough. i'm more worried about finding a nice head, and actually full valvetrain and that wont drain my bank haha. and a cam, cuz my stock one isn't pretty. i think my motor was deprived of oil for the last part of its life lol.

February 15th, 2008, 07:06 PM	#17
TurboLX IT'S TURBO TIME 1990 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,643	get a TC head, no need for aluminum CHA CHING! __________________ *Put up, Shut up, Line Up And Get Beat Up!!!*

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February 16th, 2008, 04:21 PM	#18
rodthrower2.3T Regular 88 TurboChicken 8.40/83.4 Join Date: Sep 2007 Location: hobart, IN~W.Lafayette@Purdue Posts: 147	when most people go aftermarket alot of them run JE,CHP, TRW, speed pro, diamond etc... pistons with crower sportsman rods

February 21st, 2008, 05:16 PM	#19
SpeedSicks Newbie '79 2.3 Turbo Stang Coupe Working on it... Join Date: Feb 2008 Location: Riverton Posts: 20	just got my turbo! i'm unsure of the make or what model turbo it is. but its big, not too big for what i want though. i think its a mitsubishi turbo, it came out of a Cat 320 Excavator ;-p. it is in great condition, and i think it will work awesome. it has the divided exhaust housing like the holsets have, so i think i'll just grind the divider back and give it an edge. i planned on a little port and polish anyway. __________________ addicted to tuning 2.3 turbo cars no doubt 06 mazdaspeed6 2.3T direct injected DOHC 6spd AWD 79 stang coupe 2.3T old school injected SOHC 4spd RWD 63 F250 highboy 4x4 convert, 428, all original body, restored to custom. for sale

February 23rd, 2008, 02:41 PM	#20
rodthrower2.3T Regular 88 TurboChicken 8.40/83.4 Join Date: Sep 2007 Location: hobart, IN~W.Lafayette@Purdue Posts: 147	Build a paired runner header leave that split scroll housing alone! spools alot faster, thats the whole point of the split scroll you only have to mill it when you run an internal wastegate with a open collector header or stock exhaust manifold but it will also suffer from slightly slower spool times check into some split scroll headers and not all holsets have split scroll housings for cam selection and porting check out boport flow development, - BOPORT Flow Development - Fremont CA alot of people run the FMS a-237 and 227 and check out esslingerracing.com for more valvetrain, big dollar heads and other misc crap stay away from the ranger roller thing IMO yeah its a roller, but its got no lift etc bla bla bla bla bla Last edited by rodthrower2.3T : February 23rd, 2008 at 02:48 PM.