I could not find much information on mating a boosted motor to an ITR tranny with the ATS 4.9

It seems that everyone is saying that you won't get any traction with boost + final drive, but the description of boost is very vague. I have 7psi on my stock internal motor from the Jackson Racing Supercharger. I bought, but have not yet installed my ATS 4.9.

I currently have 215 WHP @ 9k RPM and 147 ft lbs. across the mid range with stock manifold and exhaust, so when I upgrade there is more power to be had. I have RT 615 Azenis...

Has anyone run a similar setup with the ATS 4.9 ?

NOTE: I do not drag the ITR. It is my daily driver currently, and sees track days during the summer. I want to know if this will be TOO extreme, or will I lose performance by having too aggressive gearing.

 

Here's a video of Keith's ITR. Stock internals, 7lbs of boost with JRSC, and ATS 4.9fd.

https://honda-tech.com/zerothread?id=1691952

Keith's ITR =

 

With 230whp I cannot get traction in 2nd N/A with the ATS 4.9 on cold nights. 1st is just retarded.

I would love to drive a JRSC'd ITR with a 4.9

PS That video link doesnt work =\

 

to the op, since you daily drive your car, how has super charging it changed fuel usage? Is it a whole lot more or is it still bearable.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B-money &raquo;</TD></TR><TR><TD CLASS="quote">to the op, since you daily drive your car, how has super charging it changed fuel usage? Is it a whole lot more or is it still bearable. </TD></TR></TABLE>

with a mix of city and highway, I was originally getting about 23 to 25 mpg.
I now get 15 to 17 mix, and if i am only on the interstate I get about 26 mpg

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">With 230whp I cannot get traction in 2nd N/A with the ATS 4.9 on cold nights. 1st is just retarded.

I would love to drive a JRSC'd ITR with a 4.9

PS That video link doesnt work =\</TD></TR></TABLE>

you've taken your 5 speed and effectively made it into a 4 speeder

its a shame no ones come out with an affordable modified tranny with 7-9 gears

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR 1102 &raquo;</TD></TR><TR><TD CLASS="quote">I could not find much information on mating a boosted motor to an ITR tranny with the ATS 4.9

It seems that everyone is saying that you won't get any traction with boost + final drive, but the description of boost is very vague. I have 7psi on my stock internal motor from the Jackson Racing Supercharger. I bought, but have not yet installed my ATS 4.9.

I currently have 215 WHP @ 9k RPM and 147 ft lbs. across the mid range with stock manifold and exhaust, so when I upgrade there is more power to be had. I have RT 615 Azenis...

Has anyone run a similar setup with the ATS 4.9 ?

NOTE: I do not drag the ITR. It is my daily driver currently, and sees track days during the summer. I want to know if this will be TOO extreme, or will I lose performance by having too aggressive gearing.</TD></TR></TABLE>


stop trying to copy my setup j/k anyways, current setup made 270whp and 198lbs torque (dynojet)..

my mods,

Act Clutch (2200lbs)
Act flywheel (8lbs)
Invidia test pipe
RLZ chipped Ecu CROME (9600rpms)
Apexi V-AFC
ATS final drive ( 4.9 FD)
Mugen exhaust
Skunk 2 cam gears
TODA valve springs
Mugen head gasket (11.1 comp )
Injen cold air intake
Strup JDM 4-1 header
JR Low Temp 160-Degree Thermostat
Jackson racing supercharger
RC 550cc injectors
Walbro 255 HP fuel pump
NGK cooler spark plugs
motorvations stepper pully (7.5psi)
tires= yoko es100 205-50-15


I drive my R 150 + miles a day for work with no problems

PMed ya my number if you have any other questions.. i'm tired of typing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bradstard &raquo;</TD></TR><TR><TD CLASS="quote">Here's a video of Keith's ITR. Stock internals, 7lbs of boost with JRSC, and ATS 4.9fd.

https://honda-tech.com/zerothread?id=1691952

Keith's ITR = </TD></TR></TABLE>


thanks brad

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR 1102 &raquo;</TD></TR><TR><TD CLASS="quote">

with a mix of city and highway, I was originally getting about 23 to 25 mpg.
I now get 15 to 17 mix, and if i am only on the interstate I get about 26 mpg</TD></TR></TABLE>

Really??

I still get 30mpg with JRSC on teh highway... and 25-27 city pushing it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dsav4shawn &raquo;</TD></TR><TR><TD CLASS="quote">

Really??

I still get 30mpg with JRSC on teh highway... and 25-27 city pushing it.</TD></TR></TABLE>


So is the diffence in tunning it, in how lean/rich you run it and what type of mods do you have plus your jrsc?

 

boost + 4.9 final drive does nothing but put more torque to the wheels.

if you're spinning, you can do one of two things

1. Get tires with more traction
2. put less torque to the wheels


the ONLY reason that you should hold back on is that you'll be shifting into 5th in the 1/4th. But even then, run larger slicks.

infinitude is stronger and cheaper