Single turbo to replace stock twins
10-24-07, 12:36 PM
#1
Single turbo to replace stock twins
Ok, I am not looking for information/arguments about '99 spec or BNR stage 3 turbos or larger single turbo upgrades...
Now, with that said...
short version: stock car w/ powerFC, Power XS SMIC, 3'' exhaust....want single turbo ideas...
longer version:
My car has about 35k on a rebuild w/ stock ports. Stock fuel system, Power XS stock mount inner cooler, 3'' mid pipe, stock cat back (for now...no cats). ECU is Power FC. I currently have hi-mileage stock twins...
I am looking for information on the specs (flow rates, A/Rs, etc) of the stock twins when both are operational...and any other turbos will similar output.
I want to swap my car to single turbo with minimal upgrading to my current set up. (i know a re-tune will be in order) I am looking for a turbo that has at least the same output as the stock twins...i plan to run 10 - 12 lbs (with tune, i would consider 15 lbs (as long as i have the fuel))
i have searched the forum already for ideas...and had no luck...if there is another thread that covers exactly this, please link
Now, with that said...
short version: stock car w/ powerFC, Power XS SMIC, 3'' exhaust....want single turbo ideas...
longer version:
My car has about 35k on a rebuild w/ stock ports. Stock fuel system, Power XS stock mount inner cooler, 3'' mid pipe, stock cat back (for now...no cats). ECU is Power FC. I currently have hi-mileage stock twins...
I am looking for information on the specs (flow rates, A/Rs, etc) of the stock twins when both are operational...and any other turbos will similar output.
I want to swap my car to single turbo with minimal upgrading to my current set up. (i know a re-tune will be in order) I am looking for a turbo that has at least the same output as the stock twins...i plan to run 10 - 12 lbs (with tune, i would consider 15 lbs (as long as i have the fuel))
i have searched the forum already for ideas...and had no luck...if there is another thread that covers exactly this, please link
10-24-07, 06:15 PM
#3
Big Daddy!!!
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The Apexi kit. It has about the same power as the factory twins. Its a fairly expensive kit as far as I remember. I am not sure if the factory injectors will be able to support it with out running out of fuel.
R.K.
R.K.
10-24-07, 06:29 PM
#5
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yeah, in what way is a gt-4088 remotely similar to stock twins? I think he wants a small turbo that doesnt require an upgraded fuel system.
Beware though, even if you dont upgrade fuel system, you will still need a new exhaust manifold, oil lines/fittings, wastegate, bov, intercooler piping, downpipe.
With that being said, i have often wondered what size turbo you would need to get ~300 hp at ~10psi with good spool. Most people shoot for the stars, but i think a close to stock power single might have some good advantages over the twins.
Beware though, even if you dont upgrade fuel system, you will still need a new exhaust manifold, oil lines/fittings, wastegate, bov, intercooler piping, downpipe.
With that being said, i have often wondered what size turbo you would need to get ~300 hp at ~10psi with good spool. Most people shoot for the stars, but i think a close to stock power single might have some good advantages over the twins.
10-24-07, 07:00 PM
#6
sans FD....
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apexi rx6....its perfect for what you're after. the "b" version might be a bit cheaper than the "a" kit. check the the 3rd gen FS section as they pop up there every once in awhile.
if you get ahold of jason at rx7store they still have them...its a bit pricey though.
edit: i was really looking into the rx6 kit when i went single with mine. spool up is almost equal to the twins, and the potential for 300-350hp is easily there. only reason i didn't go with it or a similiar setup is i got a KILLER deal on my T04R.
if you get ahold of jason at rx7store they still have them...its a bit pricey though.
edit: i was really looking into the rx6 kit when i went single with mine. spool up is almost equal to the twins, and the potential for 300-350hp is easily there. only reason i didn't go with it or a similiar setup is i got a KILLER deal on my T04R.
10-24-07, 07:27 PM
#7
Gone Race'n
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At 15psi on stock ports?? Are you sure? I thought he was looking to do ~340 at the wheels (which is what the stockers can do) at about 10-12psi
Originally Posted by lt1_rx7
I want to swap my car to single turbo with minimal upgrading to my current set up. (i know a re-tune will be in order) I am looking for a turbo that has at least the same output as the stock twins...i plan to run 10 - 12 lbs (with tune, i would consider 15 lbs (as long as i have the fuel))
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10-24-07, 07:33 PM
#8
sans FD....
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http://www.i-m-racing.com/aprx793rx6si.html cheaper than rx7store....sorry jason.
10-24-07, 08:41 PM
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R.K.
10-24-07, 08:44 PM
#11
Hey guys, thank you for all the input. Yeah, I know the swap to single will require a few other hardware parts, that is why I didn't mention the 3'' Downpipe I have...it doesn't do me much good to swap to single.
The idea is to match stock performance with a simpler system because this car is my daily driver and I can't shoot for the stars right now and never plan to!
Thank again and more opinions are always welcome!
The idea is to match stock performance with a simpler system because this car is my daily driver and I can't shoot for the stars right now and never plan to!
Thank again and more opinions are always welcome!
10-24-07, 11:42 PM
#13
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i have a 60-1 and that is nothing like stock power. I run at 13psi and it is uhm.....fast. You are going to have to go smaller to get stock like power with stock fuel system. I am really not sure what will give you stock power/response but it sure isnt a 60-1.
10-25-07, 12:14 AM
#14
Weird Cat Man
I have a T04S (60-1) and I love it.
I drove the car every day for the last two weeks everywhere at 405 rwhp (15 psi).
The RX-6 is a good one, but the only issue I have with that one is that I have no idea where you'll get replacement parts if it breaks... sure, Apexi is around NOW, but what about in 3 years? 5? 10? (haha who am I kidding, the engine won't last that long anyhow).
The 60-1 is dirt cheap, proven by many folks, anyone can repair it or supply parts, and it's perfect for the 10-15 PSI pump gas/street car range....
I drove the car every day for the last two weeks everywhere at 405 rwhp (15 psi).
The RX-6 is a good one, but the only issue I have with that one is that I have no idea where you'll get replacement parts if it breaks... sure, Apexi is around NOW, but what about in 3 years? 5? 10? (haha who am I kidding, the engine won't last that long anyhow).
The 60-1 is dirt cheap, proven by many folks, anyone can repair it or supply parts, and it's perfect for the 10-15 PSI pump gas/street car range....
10-25-07, 01:32 AM
#15
sans FD....
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wha??? the rotary 7 is the DD? pshshhh....that almost seems *** backwards. but all kidding aside, everything that i've heard/researched about that kit says that they are bulletproof. the only thing that'll tear em up is an apex seal through the hotside. and then your fucked anyways.
on a side note....i have a nice 60-1 garrett for sale if you're interested. you can take it off my hands and run low boost and have the same power level as twins with the (keyword here) potential for more down the road.
on a side note....i have a nice 60-1 garrett for sale if you're interested. you can take it off my hands and run low boost and have the same power level as twins with the (keyword here) potential for more down the road.
10-25-07, 02:59 AM
#16
Just turn up the boost!
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the apexi kit is fuggin amazing, spools up almost exactly like the twins in parallel mode... actually faster 
great power too!
oh and the guy above that said he tried emailing intense... that's not us sadly there are two companies. we R t3h bettar lol
great power too!oh and the guy above that said he tried emailing intense... that's not us
sadly there are two companies. we R t3h bettar lol
10-25-07, 09:19 AM
#17
Senior Member
TD06-20G
TD06-25G
RX-6
T04E 60Trim
just to name few. But others are right, RX-6 is a superb turbo, will spool very fast and you can get lots of power if you want or keep it just to the limits of your fuel-system.
REgards
Iwan
TD06-25G
RX-6
T04E 60Trim
just to name few. But others are right, RX-6 is a superb turbo, will spool very fast and you can get lots of power if you want or keep it just to the limits of your fuel-system.
REgards
Iwan
10-25-07, 09:24 AM
#18
for the 60-1, would i need to upgrade fuel if running on low boost? i'm not opposed to a turbo that gives me more performance down the road, as long as i can run it on my stock fuel system now...
manveru...how much for your nice 60-1?
yes, the rotary is my daily driver...
manveru...how much for your nice 60-1?
yes, the rotary is my daily driver...
10-25-07, 12:06 PM
#19
what about a T04B w/ .96 a/r on hot side? not sure the other specs on it...
just looked at the RX6 kit...for the price of that kit for roughly stock performance, I would rather buy at GT35R or GT40R kit and upgrade my fuel system...same money, more performance...
just looked at the RX6 kit...for the price of that kit for roughly stock performance, I would rather buy at GT35R or GT40R kit and upgrade my fuel system...same money, more performance...
Last edited by lt1_rx7; 10-25-07 at 12:14 PM.
10-25-07, 02:37 PM
#20
Big Daddy!!!
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Bingo. Your starting to learn.
R.K.
10-25-07, 03:11 PM
#21
Something I need to clarify because it bugs me whenever I read it -
The RX6 absolutely does NOT spool up as quickly as the twins in sequential mode. I appreciate the fact that Intense_Motorsports clarified it by saying that it might be about as quick as the twins in parallel, but I can't verify that as I have not run an FD with the twins in parallel.
You can not beat the low-end torque of the stock twins, but that being said, the RX6 is a fantastic turbo. The spool is RELATIVELY quick compared to other singles, and it'll give you 350-400hp at 13-15psi.
The RX6 absolutely does NOT spool up as quickly as the twins in sequential mode. I appreciate the fact that Intense_Motorsports clarified it by saying that it might be about as quick as the twins in parallel, but I can't verify that as I have not run an FD with the twins in parallel.
You can not beat the low-end torque of the stock twins, but that being said, the RX6 is a fantastic turbo. The spool is RELATIVELY quick compared to other singles, and it'll give you 350-400hp at 13-15psi.
10-25-07, 03:19 PM
#22
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The low end torque might be greater till about 2000rpm on the factory twins but after that single turbo will make more power and torque than the factory twins in sequential mode.
R.K.
10-25-07, 05:45 PM
#24
I'm fairly certain that the RX6 can not produce the same amount of power as the GT35. The RX6 has a very small hotside (I think it's similar to a T3 footprint?), which is why it has pretty fast spool.
You have to decide how much power you want at peak (drag racing car) versus across the RPM range (street). If your car is not a dedicated track car, then you will have to compromise somewhere.
You have to decide how much power you want at peak (drag racing car) versus across the RPM range (street). If your car is not a dedicated track car, then you will have to compromise somewhere.
10-25-07, 07:25 PM
#25
Weird Cat Man
for the 60-1, would i need to upgrade fuel if running on low boost? i'm not opposed to a turbo that gives me more performance down the road, as long as i can run it on my stock fuel system now...
manveru...how much for your nice 60-1?
yes, the rotary is my daily driver...
manveru...how much for your nice 60-1?
yes, the rotary is my daily driver...
At 10 lbs with the usual mods, a 60-1 will be over that. However, you can extend your fuel budget more with modest upgrades like...
Supra fuel pump (around 200 bucks and 15 min install)
850 cc/min injectors in the primaries or 1300 overbores in the secondaries
These options will bump the fuel up enough to put you in the 350 rwhp range on a mostly-stock fuel system (in other words, no expensive rails, special pressure regs, custom fittings)....
That should allow 10 PSI on the 60-1 I think.