LST / LS-T Turbo B18A B18B setups
03-22-2010, 11:10 PM
Junior Member
Join Date: Aug 2008
Location: Lynden, WA, USA
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
hey do you guys happen to know what size coupler I will need for the inlet on a standard garrett turbo? its just a t3to4e 57trim I have a 2.5" coupler for my intercooler pipes and its barely too small........do they make a 2.75" ??
I want to run a 2.5" blox velocity stack and I know its outer diamiter is 2.5" so maybe a 2.75 - 2.5 reducer? im tired and confused ha!
I want to run a 2.5" blox velocity stack and I know its outer diamiter is 2.5" so maybe a 2.75 - 2.5 reducer? im tired and confused ha!
http://turbohoses.com/Transition.htm
03-22-2010, 11:32 PM
Honda-Tech Member
Re: LST / LS-T Turbo B18A B18B setups
Wow that place is expensive! 
I ended up figuring out that the place I get my mandrel bends from has reducers like what I need for $9.99
http://www.mandrel-bends.com/catalog...ucer-1178.html
+ they are "local" to us so bends from them usually come in 1-2 days
maybe I should have gotten a 3" velocity stack and stepped it down? although I think the inner diamiter of the stack and the turbo are both 2.5 its just the material of the turbo is thicker
I ended up figuring out that the place I get my mandrel bends from has reducers like what I need for $9.99http://www.mandrel-bends.com/catalog...ucer-1178.html
+ they are "local" to us so bends from them usually come in 1-2 days
maybe I should have gotten a 3" velocity stack and stepped it down? although I think the inner diamiter of the stack and the turbo are both 2.5 its just the material of the turbo is thicker
03-23-2010, 03:06 AM
Honda-Tech Member
Join Date: Jun 2006
Location: Speedway, IN
Posts: 246
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
I have a question about tuning. My previous setup was tuned on crome with a stock LS engine and straight t3 50trim turbo at 8.7 psi. My new setup is a fully built engine with Crower stage 2 turbo cams and a straight t3 60trim. I would like to see if I can get a full season of autocross out of my crappy xtd stage3 clutch, so I won't be turning up the boost yet. I will use the 5.8psi spring for autocross and daily driving, and I may use the 8.7psi spring for the occasional trip to the drag strip.
My question is: Do I need a retune?
I drive around town and watch my afrs. They seem to dip down when they should (under boost). I haven't taken my spark plugs out and looked at them, but I plan on doing that soon. Any input would be greatly appreciated. Thanks.
My question is: Do I need a retune?
I drive around town and watch my afrs. They seem to dip down when they should (under boost). I haven't taken my spark plugs out and looked at them, but I plan on doing that soon. Any input would be greatly appreciated. Thanks.
03-23-2010, 04:18 AM
Honda-Tech Member
iTrader: (4)
Join Date: Apr 2005
Location: South, Texas
Posts: 12,903
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
yes you need a retune. not only are you using a larger turbo but you have changed the cams which is going to change the characteristics of the way teh engine breathes
03-23-2010, 05:12 AM
Honda-Tech Member
Join Date: Jan 2005
Location: somewhere, ukno, USA
Posts: 2,734
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
Sup guys, been awhile since Ive popped in here. Was out of the honda game for awhile but bounced back with a new beast. Bought a 91 NSX last monday 
My old LS-T integra got pieced back together over the last few months and was fired off saturday but only as a NA engine now. With justin's old head curious to see how she performs NA haha
My old LS-T integra got pieced back together over the last few months and was fired off saturday but only as a NA engine now. With justin's old head curious to see how she performs NA haha
03-23-2010, 07:00 AM
Junior Member
Join Date: Aug 2008
Location: Lynden, WA, USA
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
Wow that place is expensive! I ended up figuring out that the place I get my mandrel bends from has reducers like what I need for $9.99
http://www.mandrel-bends.com/catalog...ucer-1178.html
+ they are "local" to us so bends from them usually come in 1-2 days
maybe I should have gotten a 3" velocity stack and stepped it down? although I think the inner diamiter of the stack and the turbo are both 2.5 its just the material of the turbo is thicker
I ended up figuring out that the place I get my mandrel bends from has reducers like what I need for $9.99http://www.mandrel-bends.com/catalog...ucer-1178.html
+ they are "local" to us so bends from them usually come in 1-2 days
maybe I should have gotten a 3" velocity stack and stepped it down? although I think the inner diamiter of the stack and the turbo are both 2.5 its just the material of the turbo is thicker
03-23-2010, 08:51 PM
Honda-Tech Member
Re: LST / LS-T Turbo B18A B18B setups
I just got cam gears and have no idea where my ls-t would like them to be set to make more power. Im looking to see if I can find anything but no luck so far...
if any one has any insight that would be tittys.
if any one has any insight that would be tittys.
03-24-2010, 12:08 AM
Honda-Tech Member
Re: LST / LS-T Turbo B18A B18B setups
I imagine you would have to retune and just play around with it to see what makes power and what doesn't Never had cam gears so I may be wrong lol
03-24-2010, 01:43 AM
Honda-Tech Member
Re: LST / LS-T Turbo B18A B18B setups
Ill be retuneing it my self.
Iv played with cam gears before on my old na ls. it was actually kinda fun. I read this big write up on the difference of static compression ratio and dynamic ratio (had aftermarket cams and stock compression ratio so the motor was a little over cammed) I ended up using the cam gears to bump up the dynamic compression ratio by advancing the intake cam so the intake valves close sooner. (dynamic compression ratio states that compression does not start untill the intake valves fully close and the motor can start the compression)
but with a turbo motor I have no Idea where to start...
Iv played with cam gears before on my old na ls. it was actually kinda fun. I read this big write up on the difference of static compression ratio and dynamic ratio (had aftermarket cams and stock compression ratio so the motor was a little over cammed) I ended up using the cam gears to bump up the dynamic compression ratio by advancing the intake cam so the intake valves close sooner. (dynamic compression ratio states that compression does not start untill the intake valves fully close and the motor can start the compression)
but with a turbo motor I have no Idea where to start...
03-24-2010, 03:07 AM
Honda-Tech Member
iTrader: (4)
Join Date: Apr 2005
Location: South, Texas
Posts: 12,903
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
the only way you can make cam timing adjustments is on a dyno. the butt dyno will not tell you jack. just leave the cams in stock position
03-24-2010, 05:34 AM
Honda-Tech Member
iTrader: (4)
Join Date: Apr 2005
Location: South, Texas
Posts: 12,903
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
There is a specific angle the cams need to be at per manufacture specs if your running stock cams just put them back in normal. Really any cam with an ls will run fine in stock location
03-24-2010, 05:39 AM
Honda-Tech Member
iTrader: (4)
Join Date: Apr 2005
Location: South, Texas
Posts: 12,903
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
Hey guys. Anyone that has or is looking to buy a spa top mount maifild let me know. I'm having the clocking flanges made and I plan on doing a group buy. Please let me know if you are interested. I'm going to make it possible for you guys out there to run the spa manifolds with a clock flange so let's make this happen
03-24-2010, 10:25 AM
Honda-Tech Member
Join Date: Aug 2006
Location: Clarksville, MD, USA
Posts: 722
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
whats the group buy price? just curious, i don't think this manifold would work with an integra full size radiator?
edit: nvm turbo ls i saw pics of your red teg and this mani on other cars, no way a full size radi would fit
edit: nvm turbo ls i saw pics of your red teg and this mani on other cars, no way a full size radi would fit
03-24-2010, 11:15 AM
Honda-Tech Member
iTrader: (4)
Join Date: Apr 2005
Location: South, Texas
Posts: 12,903
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
nah full sized rad def wont fit. the reason for a group buy is because this place has a minmum amount they will do so i have to get enough purchased in order to do this. i dont have the money to put up to do this and i know people want these things so im trying to help out and turn a little profit for my time spent. i will have a price once i get info back from the company today or tomorrow. i will also make a group buy thred
03-24-2010, 12:30 PM
Honda-Tech Member
iTrader: (4)
Join Date: Apr 2005
Location: South, Texas
Posts: 12,903
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
Group buy thred for SPA topmount clocking flange.
https://honda-tech.com/forums/forced-induction-16/spa-topmount-clocking-flange-group-buy-thred-2748907/
https://honda-tech.com/forums/forced-induction-16/spa-topmount-clocking-flange-group-buy-thred-2748907/
03-24-2010, 06:17 PM
Honda-Tech Member
Join Date: Jun 2006
Location: Speedway, IN
Posts: 246
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
I heard that Crower 402T cams will really beat the **** out of a valve train. Do I have anything to worry about if I have Crower springs and retainers?
03-25-2010, 06:15 PM
Honda-Tech Member
Join Date: Sep 2009
Location: Based world.
Posts: 226
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
Loving this thread. Giving me a bunch of pointers. I have a question though, I have a T3/T4 turbo that's .50/.63 my question is where do you guys think spool up will be?
Last edited by Boostedjay; 03-25-2010 at 06:43 PM.
03-25-2010, 08:26 PM
Honda-Tech Member
Join Date: Mar 2010
Posts: 49
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
Hey guys. Getting the following setup installed this week and tuned after, and I'm wondering what numbers I should look forward to. I'm hoping for at least 250whp and aiming for 300whp. Looking to get 2 mappings, one for 93 octane, one for 110 octane. Sound doable?
- B18A1 stock motor w/150k miles
- Compression test: Cyl1: 160psi Cyl2: 160psi Cyl3: 160psi Cyl4: 155psi
- Leak down test: Cyl1: 8% loss Cyl2: 7% loss Cyl3: 6% loss Cyl4: 7% loss
- ARP head studs
- OEM timing belt
- OEM headgasket
- OEM water pump
- GSR oil pump
- Garrett T3/TO4E 50 trim compressor w/stage III turbine .48 A/R
- Custom stainless steel tubular ram manifold
- Custom stainless steel 3" downpipe with flex pipe and dumptube
- Tial 38mm wastegate
- 3" full custom exhaust
- Custom intercooler 27" X 6.5" X 3.5"
- Custom intercooler aluminum piping
- Tial Q blow off valve
- BLOX Pro Boost Controller
- GM 3 Bar Map Sensor
- Skunk2 intake manifold
- BLOX 68mm throttle body
- Endyne block breather kit
- Walbro 255 fuel pump
- Delphi 580cc injectors
- FueLAB Adjustable FPR
- Benen Fuel Rail
- Y1 tranny rebuilt with GearSpeed carbon coated synchros
- Stage 4 Competition clutch
- 12lb Competition flywheel
- P28 ECU tuned with Hondata S300
Thanks,
Coz
- B18A1 stock motor w/150k miles
- Compression test: Cyl1: 160psi Cyl2: 160psi Cyl3: 160psi Cyl4: 155psi
- Leak down test: Cyl1: 8% loss Cyl2: 7% loss Cyl3: 6% loss Cyl4: 7% loss
- ARP head studs
- OEM timing belt
- OEM headgasket
- OEM water pump
- GSR oil pump
- Garrett T3/TO4E 50 trim compressor w/stage III turbine .48 A/R
- Custom stainless steel tubular ram manifold
- Custom stainless steel 3" downpipe with flex pipe and dumptube
- Tial 38mm wastegate
- 3" full custom exhaust
- Custom intercooler 27" X 6.5" X 3.5"
- Custom intercooler aluminum piping
- Tial Q blow off valve
- BLOX Pro Boost Controller
- GM 3 Bar Map Sensor
- Skunk2 intake manifold
- BLOX 68mm throttle body
- Endyne block breather kit
- Walbro 255 fuel pump
- Delphi 580cc injectors
- FueLAB Adjustable FPR
- Benen Fuel Rail
- Y1 tranny rebuilt with GearSpeed carbon coated synchros
- Stage 4 Competition clutch
- 12lb Competition flywheel
- P28 ECU tuned with Hondata S300
Thanks,
Coz
328 whp / 261 tq at 15 psi on 93 octane. Didn't run the 110 because my injectors were already pretty maxed out.
Coz
03-25-2010, 10:37 PM
Honda-Tech Member
Re: LST / LS-T Turbo B18A B18B setups
good numbers. I bet that dyno reads a little low if your maxing your injectors out, did you try upping the fuel pressure?
as for the t3/t4 spool time full boost should be around 3600-3800at the latest and start pretty early. also it depends on how long your manifold runners are.
as for the t3/t4 spool time full boost should be around 3600-3800at the latest and start pretty early. also it depends on how long your manifold runners are.
03-26-2010, 05:08 AM
Honda-Tech Member
iTrader: (4)
Join Date: Apr 2005
Location: South, Texas
Posts: 12,903
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
well im not a paying sponsor of honda-tech so im not allowed to do a group buy on here. any suggestions how i can setup a group buy so peoepl can get these clocking flanges for their spa manifold ?
03-26-2010, 05:46 AM
Honda-Tech Member
Join Date: Aug 2006
Location: Clarksville, MD, USA
Posts: 722
Likes: 0
Received 0 Likes
on
0 Posts
03-26-2010, 05:56 AM
Honda-Tech Member
Join Date: Mar 2010
Posts: 49
Likes: 0
Received 0 Likes
on
0 Posts
Re: LST / LS-T Turbo B18A B18B setups
Originally Posted by K7-1Ktrevor
good numbers. I bet that dyno reads a little low if your maxing your injectors out, did you try upping the fuel pressure?
as for the t3/t4 spool time full boost should be around 3600-3800at the latest and start pretty early. also it depends on how long your manifold runners are.
as for the t3/t4 spool time full boost should be around 3600-3800at the latest and start pretty early. also it depends on how long your manifold runners are.
Here's the dyno sheet.
Coz
