355 daily driver turbo?
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
355 daily driver turbo?
i have came from my daily driver being a turbo awd talon, i used a 35r on it and i love the feeling of boost.
i now have my 91 camaro rs, block and rotating assembly is still in the machine shop. i have 4.10 gears, built 700r4, v6 converter, 9.3 compression(speed pro hyper pistons) , gm performance vortec heads, magnum 1.52 rockers, dual plane intake, 600cfm carb and im using a howards custom ground .470/.470 lift cam. it is a 355 and bottom end will be internally balanced.
i am looking to make it single turbo very shortly. i want to do either a t76 or t70. because of the higher compression and the pistons not being forged it will be intercooled.
i want to run between 6-8 psi and get into the low 11s high 10s with drag radials. i want to know if im on the right track? will this be good enough for my goals? also i will be switching to a carb shop 750 blow through and be tuning using an aem wideband. i am only looking to rev the car to 5500 or 6k MAX.
i now have my 91 camaro rs, block and rotating assembly is still in the machine shop. i have 4.10 gears, built 700r4, v6 converter, 9.3 compression(speed pro hyper pistons) , gm performance vortec heads, magnum 1.52 rockers, dual plane intake, 600cfm carb and im using a howards custom ground .470/.470 lift cam. it is a 355 and bottom end will be internally balanced.
i am looking to make it single turbo very shortly. i want to do either a t76 or t70. because of the higher compression and the pistons not being forged it will be intercooled.
i want to run between 6-8 psi and get into the low 11s high 10s with drag radials. i want to know if im on the right track? will this be good enough for my goals? also i will be switching to a carb shop 750 blow through and be tuning using an aem wideband. i am only looking to rev the car to 5500 or 6k MAX.
#2
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Re: 355 daily driver turbo?
T70 should do that. Only need 500whp for high 10's. Heck may do it with 450whp in a light car set on drag mode.
P trim turbine T4, .96 a/r is what I'd try for that power. It should live at that compression with a good tune and being a blow thru setup.
I dont like dual plane intakes since distribution can be bad. have to check into that more but a small vic jr single plane setup could work. Give up abit of low end response but on boost it should have better fuel distribution.
P trim turbine T4, .96 a/r is what I'd try for that power. It should live at that compression with a good tune and being a blow thru setup.
I dont like dual plane intakes since distribution can be bad. have to check into that more but a small vic jr single plane setup could work. Give up abit of low end response but on boost it should have better fuel distribution.
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
thanks, i was looking into a turbonetics hurricane series t70? but i think its only t3 flanged? ill have to look at the a/r size again and would the heads have enough intake runner only being 170s to put me in the 10s? i want to keep the heads because they are cast and ive had bad luck with warping aluminum heads( ruined a set of afr's due to overheating).
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
also whats the dimensions of your intercooler core? so i have a rough idea of what i need.
also does anyone here use the holsets? could i use a t3 flanged hx40?
thanks,
justin
also does anyone here use the holsets? could i use a t3 flanged hx40?
thanks,
justin
#5
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Re: 355 daily driver turbo?
Originally Posted by 355sleeper
i want to run between 6-8 psi and get into the low 11s high 10s with drag radials. i want to know if im on the right track? will this be good enough for my goals? also i will be switching to a carb shop 750 blow through and be tuning using an aem wideband. i am only looking to rev the car to 5500 or 6k MAX....
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
Ken Crocie ran a dual plane while keeping it under 5500-RPM with his poncho turbo build, and made 744 pound feet of torque at 3400-RPM, and 537 horsepower at 4400-RPM. Cam was a 224/230 537"/533" stuffed in a 489 Pontiac engine with 2.11/1.77 intake and exhaust valves running 8.3:1 compression @ 8-psi of boost... running a quadrajet if you can believe it. Turbo specs were kept secret though for some reason.
where are you turbo guys feeding the turbo from? and how about drain? into the pan or elsewhere?
also how much psi are you seeing from this oil feed? is it enough to run a journal bearing turbo? i know all cars will be different as im using a melling hv pump, just want a general idea.
#7
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Re: 355 daily driver turbo?
Forget the dimensions but the intercooler is Treadstones largest core twin turbo setup. 25" X 9" X 3.5" is the main core size then add on the side tanks and such.
My oil line comes from the port on the rear of the block china wall. Plenty of pressure for a journal bearing turbo. Too much and you will blow seals. -4 line feeding it. -10 line draining it straight to the batterys.
Now my new setup will likely have -6 line for drains to a scavenge pump to help get oil back to the motor.
My oil line comes from the port on the rear of the block china wall. Plenty of pressure for a journal bearing turbo. Too much and you will blow seals. -4 line feeding it. -10 line draining it straight to the batterys.
Now my new setup will likely have -6 line for drains to a scavenge pump to help get oil back to the motor.
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
Forget the dimensions but the intercooler is Treadstones largest core twin turbo setup. 25" X 9" X 3.5" is the main core size then add on the side tanks and such.
My oil line comes from the port on the rear of the block china wall. Plenty of pressure for a journal bearing turbo. Too much and you will blow seals. -4 line feeding it. -10 line draining it straight to the batterys.
Now my new setup will likely have -6 line for drains to a scavenge pump to help get oil back to the motor.
My oil line comes from the port on the rear of the block china wall. Plenty of pressure for a journal bearing turbo. Too much and you will blow seals. -4 line feeding it. -10 line draining it straight to the batterys.
Now my new setup will likely have -6 line for drains to a scavenge pump to help get oil back to the motor.
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
i was thinking about that and i might go fuel injection, a carb is almost a grand and for a efi setup its 2-3k but i have the benefit of easier starts and better fuel economy. how do you like your holley efi setup? i will take it somewhere to have it tuned if i go efi
#11
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Re: 355 daily driver turbo?
Originally Posted by 355sleeper
i was thinking about that and i might go fuel injection, a carb is almost a grand and for a efi setup its 2-3k but i have the benefit of easier starts and better fuel economy. how do you like your holley efi setup? i will take it somewhere to have it tuned if i go efi...
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Car: '85 TA
Engine: 350 turbo
Transmission: T56
Axle/Gears: 3.70 posi 9bolt
Re: 355 daily driver turbo?
As far as the Holley 950 system, it works very well. The majority of tuning can be performed on the street and then a dyno can be used for the last bit of tweaking. Or, the new efi systems have autotune where you just drive the car around and it sets itself.
#13
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Re: 355 daily driver turbo?
Originally Posted by calebzman
I've never seen that picture before and that's some pretty original fab work. Unless initial cost is the only factor, to say that a carb can't be beat for the street is pretty disingenuous...
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
I've never seen that picture before and that's some pretty original fab work. Unless initial cost is the only factor, to say that a carb can't be beat for the street is pretty disingenuous.
As far as the Holley 950 system, it works very well. The majority of tuning can be performed on the street and then a dyno can be used for the last bit of tweaking. Or, the new efi systems have autotune where you just drive the car around and it sets itself.
As far as the Holley 950 system, it works very well. The majority of tuning can be performed on the street and then a dyno can be used for the last bit of tweaking. Or, the new efi systems have autotune where you just drive the car around and it sets itself.
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
sweet thats what ill do then, i searched for like 2 hours now and cant find a complete kit, i know you already spoonfed it to me lol, but would you find me a link to a complete kit?
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
oh ok, so i would need to buy a manifold, fuel rails and injectors on top of it then, i was thinking it was a complete set up. and thanks for all your help
i cant tell, does it come with the throttle body?
i cant tell, does it come with the throttle body?
Last edited by 355sleeper; 02-17-2012 at 04:28 PM.
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Car: '85 TA
Engine: 350 turbo
Transmission: T56
Axle/Gears: 3.70 posi 9bolt
Re: 355 daily driver turbo?
If you want to go with Holley, I'd choose the cheaper HP system since the only major difference between that and the dominator ecu is that it can only run 1 O2 sensor instead of 2. The 550-601 includes the ecu and wiring harness.
Then, buy a new or used tpi/stealth ram/ect. setup that comes with the manifold, runners, throttle body, & fuel rails. You'll need larger injectors (50-60lb), fuel pump, and an afpr.
The links Street Lethal posted are ecu only.
Then, buy a new or used tpi/stealth ram/ect. setup that comes with the manifold, runners, throttle body, & fuel rails. You'll need larger injectors (50-60lb), fuel pump, and an afpr.
The links Street Lethal posted are ecu only.
#21
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Re: 355 daily driver turbo?
Originally Posted by calebzman
The links Street Lethal posted are ecu only.
http://www.summitracing.com/parts/HLY-550-820/
#22
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
Re: 355 daily driver turbo?
I left him to decide which route he wanted to go in terms of intake setup, which is why I only posted the ECU, and the Dominator over the HP was based on the fact that he said that there was no budget, so no point in trying to save any money. If he wants a more complete HP setup, then I would have him go with the 550-820, instead...
http://www.summitracing.com/parts/HLY-550-820/
http://www.summitracing.com/parts/HLY-550-820/
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Car: IROC-Z
Engine: 377
Transmission: 700R4
Axle/Gears: 3.73
Re: 355 daily driver turbo?
I left him to decide which route he wanted to go in terms of intake setup, which is why I only posted the ECU, and the Dominator over the HP was based on the fact that he said that there was no budget, so no point in trying to save any money. If he wants a more complete HP setup, then I would have him go with the 550-820, instead...
http://www.summitracing.com/parts/HLY-550-820/
http://www.summitracing.com/parts/HLY-550-820/
many thanks
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