Gold DA9

where you located? Are you going to the hersey event at the end of the month?

Jaker

No matter what the build, your "other" motor will not outperform a properly tuned and running 10psi JRSC for autocross purposes. Unless of course you're planning some sort of 2.4+ litre K series build that'll put out 200ft/lbs or more at 2,500 to 7,500 rpm. I seriously doubt you'll be going back to NA once you get the JRSC running well.

Natural Aspirations

Probably not, I haven't even ordered my tires yet and the car has some maintenance that needs done first.

R-Comps are in my budget but I would like to run street tires at least one more year. I really have no safe way of transporting a second set of wheels and tires either, hitch/trailer/wheels/tires adds quite a bit to my expense list.

A long road a head and only 33 days until my first local event.

Natural Aspirations

Please don't say that jaker, I just got word my head was completed from CC.

Would there be any benifit from running a short stroke large bore motor? I've been in a few turbo b16's that seem to not have the traction problems that the larger motors do.

{BAGEN}

Jaker don't know if you remember but I bought my LHT intake fromyou to my GSR engine. My setup works perfectly and I can say that I would never switch to turbo.
I'm crazy happy with my engine, the torq and the response beats a turbo engine any day ....

Jaker

Hey Bagen, I do remember your purchase. What kind of power did you end up with? What torque do you have down low (around 2,500-3,000 rpm?)?

For autocross, it's pretty hard to beat a well set up JRSC. Even a well built B series will not have the pulling power off the corners that the JRSC'd engine will have. Yes, your setup will likely need to be tweaked and refined to handle the power, and so will you (throttle control), but once it is, it'll be so much fun - no waiting for 5,000 rpm for things to start happening.

AcuraIntegraLS-T

Solution is to but said vtec head onto your b20 with the jrsc.... Running a b20 bottom end will help with intake temps, vs running a 1.8 or smaller, because with the same pulley configuration a b20 is going to be less boost, same cfm, than a b18 which will equal lower intake temps from the jrsc and in the end more power. Here is a link to a calculator that has been helpful to me, I didn't make this and I don't remember where i found it. http://www.mediafire.com/?t1ylozmkl0m

{BAGEN}

Here are my dyno paper so you can see what they look like Jaker.
I am really satisfied.

HP


Torq

Gold DA9

bagen whats your setup?

are those crank/flywheel or whp numbers?

AcuraIntegraLS-T

Also interested in details those are the numbers I would like to end up with out of my lht jrsc, what cams, cam gear settings, compression, throttle body, intake, header, exhaust, what heat exchanger, what water pump, what pulleys, what motor, head, and what injectors, if you dont mind sharing the info. My goal is to be right around the 300 mark and im wondering what you did to get there. thanks

{BAGEN}

Yes of course I can share my info..

-Stock Gsr engine with stock compression
-exedy light flywheel
-JRSC kit with a ported S tube and 8 Psi boost.
-Lht Intercooler manifold
-Skunk2 68mm throttle body
-550cc RC injectors
-Walbro GSS342 255L fuel pump
-Rage header
-Invidian 2.5" Exhaust
-Tuned P28 ECU

The LHT setup is
-Motorcycle radiator
-Jonson water pump for boats



I think thats it or am i missing something??

{BAGEN}

Its crank power..

spun Vtec

Alot of good info in this thread.

AcuraIntegraLS-T

Your setup looks great, do you have any idea on if the e85 is lowering your intake temps and if so do you know how much of a difference its making thanks for the info your setup is a lot less complicated than I expected I figured you would have more into it than that nice job

{BAGEN}

Thanks for appreciation. No, unfortunately I do not know what the difference is between E85 and regular gas. But I run on E85 to be on the safe side and you also get a bit more power. Last season, I drove 2485 miles really hard and I didn't have any problems with the engine at all.

Natural Aspirations

Would a Dot-R (R888/NT-01) outperform a UHP tire (RS3/R1R) on a Higher HP FWD civic? Being that I only have a budget for 1 set of wheels/tires this year and drive about 3-4k on the street tops. Got about 12 events and 6k out of a set of R1R's last year still had 1/4-1/3 tread left.

I assume getting adequate heat in the rear tires will be quite difficult, SM 240 in my region did quite well on a set of NT-01's last season.

90_EX_Civic

do what i did,








and yes, any R-comp, even the R888/NT-01 will out perform UHP tire.

Natural Aspirations

Would Hoosier A6 225/45/15 on a 15x8 +20 be an appropriate sizing to go for? Looking at the TRMotorsports wheels.

I have dine lots of reading on the NT01 and seems that optimum temps are between 160 and 220 and most believe on most short tracks this wouldn't happen. But it has been quite unclear from my readings if the dot-r's perform any better than a UHP at the lower temps, some say yes some say no.

Stinkycheezmonky

+20 on the wheel is going to stick out a bit from the fender. +35 would be better for an 8" wheel. The Hoosier 225 will fit pretty nicely on an 8" wheel though, as its closer to 245mm in width.

I haven't seen any good back-to-back tests of DOT-Rs vs. UHPs for autoxing, but I'd be inclined to agree with 90_EX, especially with a high powered car.

Natural Aspirations

I saw you were running the 949 with the hoosiers and wondered how it clears on the inside rear.

Stinkycheezmonky

With +35 I was getting a little tire rub on the RTA (my fenders are rolled pretty heavily, so I didn't have an issue there), just enough to buff it if that makes sense. It was only an issue with the Hoosiers.

Natural Aspirations

Looks as if ill go this route then. I was concerned that the rim its self wouldn't clear the upper or lower control arm.
My konigs are pretty tight with a 7.5 with and re offset. The 949 will be another 10mm in even closer to the rta.

Stinkycheezmonky

Only thing to know: don't use the clip-on style wheel weight on the inside of the rim in the rear, as the weights will hit the UCA. Stick-ons will be fine.

The Destroyer

You should be able to fit a set of wheels in the back of the civic for events?

Id venture a guess that NT01's will also last a bit longer than A6's.

90_EX_Civic

yeah, i always thought that DOT-R tires wouldn't be hot enough for autox, but was surprised when i went for a ride in a SSM CRX running R888, in PA October weather (cold). it ran really good. really good grip, comparing to a set of A6's, it almost felt the same. surprised me.