Ok guys with the tax season coming here soon, I wanted to get some advise from the all motor guys. What would you guys rather go with ITB's or ITR tranny with lsd? here is the set up on my DC.
ECU JDM P30
Head: B16
Skunk2 stage 2 cams
S2 cam gears
s2 high compression valves
S2 valve springs
S2 retainers

Block: B18C1
.25 OS USDM ITR pistons
LS rods
micropolised and balanced LS crank

bolt-ons:
JDM ITR IM
JDM 4-1 header
2.5in test pipe and APEXi ws2 exhaust

Transmission
GSR y80
exedy stage2 clutch
ACT streetlite flywheel

Also with my tax return ill be driving up to AZ to get my hondata s300, dyno tune rc 440cc injectors and 255lph walbro fuel pump.

So what do you guys think get my ITR transmission with lsd or get ITB's and keep the gsr tranny? Thanks in advance


for your viewing pleasure here are a few pics of the teg and the motor after it was put together and when we just swaped the motor in

 

itr transmission.

i wouldn't advise on driving around in that daily driven/street vehicle with ITB's.

 

Firstly, with a PR3 head, don't think about getting TWM's.

Secondly, you can make more power with a plenum.

I vote ITR tranny + IB ported ITR IM

 

i vote jdm itr tranny and dtr headers

 

build a 2.0l and gsr lsd trans

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Firstly, with a PR3 head, don't think about getting TWM's.

Secondly, you can make more power with a plenum.

I vote ITR tranny + IB ported ITR IM </TD></TR></TABLE>

thanks for the answers guys I was also leaning more to the ITR tranny because there isnt a shop here that i can trust with tuning ITB's. Also whats the reason to stay away from TWM's on a PR3 head? Once again thanks guys!

 

TWM's were R&D's on a P72 head. Different runner/throat angle and dia compared to a PR3 head. We've tested TWM 50mm's on a number of B-series, and they score well on P72 heads, usually making a good amount of midrange and fair topend, but for instance on my motor, they made the same peak hp and only 1-2more midrange compared to my stock ITR im/tb. Ontop of that, you cannot tune stack length, stack size and runner length, which all pley key roles in the harmonics and where/how they create power.

Jenvey's on the other hand, have separate castings for both PR3 and P72 heads, and there are dozens of different stack options, along with user selectable runner lengths. What does this mean? You can run a smaller diameter throttle plate, typically 48mm is ideal for 250-290bhp, and tune the harmonics and velocity to achieve your ideal powerband. Don't forgot, bigger is not always better. You want more velocity, not more flow.

 

Well the ITR transmission will actually make your car faster. The ITBs will probally only increase your throttle response. I vote for the transmission you will see a much bigger diffrence.

 

thanks for the info. Well this car is also gonna be street/daily driver so i think im gonna stay away from the ITB's for now. So yeah im gonna stick to ITR Tranny also another question how should i go about porting my IM. Sorry for the dumb question just trying learn some new stuff here

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by arrojj &raquo;</TD></TR><TR><TD CLASS="quote">how should i go about porting my IM. </TD></TR></TABLE>

There are a couple companies that offer great CNC porting on ITR manifolds. We've used the Import Builders manifold on a couple motors with very impressive results. Midrange and topend are boasted, midrange dramatically! When it comes to plenum design, it really shouldn't be tackled by an amerature with a dremel, hell I understand it a little and I wouldn't even attempt to.

 

My vote goes to itr trans! When I got my b16 w/itr lsd and jdm fd, it was a huge change!

 

i also say itr trans

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ruben19 &raquo;</TD></TR><TR><TD CLASS="quote">build a 2.0l and gsr lsd trans</TD></TR></TABLE>

sounds good but if not then get itr tranny

 

itr tranny

 

ITR tranny with ATS 4.9 final if your budget allows.

 

buy an itr lsd for 400 bucks install it yourself and buy some itb's with the rest of the cash

 

I vote for B16 tranny w/ 4.7 final installed (essentiallya an ITR tranny for alot less money)
Then take what's left and go with a nice Tri-Y header; SMSP, DTR, Hytech etc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by j spec &raquo;</TD></TR><TR><TD CLASS="quote">buy an itr lsd for 400 bucks install it yourself and buy some itb's with the rest of the cash</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">I vote for B16 tranny w/ 4.7 final installed (essentiallya an ITR tranny for alot less money)
Then take what's left and go with a nice Tri-Y header; SMSP, DTR, Hytech etc.</TD></TR></TABLE>

Well i was also thinking about getting the b16 and buying lsd and final drive but that would be more expensive that just buying the ITR tranny that already has the LSD and 4.7 final drive. Well by march i want to get the tranny along with my tune using hondata and by Aug. or the end of the year ill get my SMSP or Hytech header.

 

i really dont think you need a 255lph fuel pump. a 190lhp would do just fine

 

u gunna love the itr 4.7 fd trans i had nothin more then a b16 at the time when i swapped in a heavy 99 civic si & droped 3 10ths you may see more wit that long gear gsr tranny & if you have a lighter car

 

I know the TWMs are one piece but you said "you cannot tune stack length" which is untrue, you can get pretty much any length velocity stack from TWM Induction or even Jenvey to fit the TWMs--they just happen to sell them with short stacks. Its the same with carbs, the DCOE webers come with 2" steel stacks but you can get any length from 1/2" to 6" plus in aluminum with a full radius if you want.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SkankyEJ7 &raquo;</TD></TR><TR><TD CLASS="quote">i really dont think you need a 255lph fuel pump. a 190lhp would do just fine </TD></TR></TABLE>

They're the same price. If you have the ability to tune, just get the 255 lph.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">

They're the same price. If you have the ability to tune, just get the 255 lph.</TD></TR></TABLE>

Yeah i already got the 255lph fuel pump

 

How about just getting a ATS 4.9 final drive for you GSR transmission and a Type R LSD?