I've been thinking bout the new direction for the Slowtra in the past 2-3 months and have decided to take it more towards the performance edge. Am still not building a "Dog" level racing car but the mods moving forward will be more towards a harder performance edge. The ICE is being slowly reduced to a simpler setup. I've removed one Steg amp and the sub is sitting in my boot unused. Anybody want a mint condition Focal 27KX sub? Have got a couple of real performance mods lined up in the roster so stay tuned. And yes, it's really good to be back!!!!!
Saturday, August 7, 2010
It's Good to be Back!!!
I've been thinking bout the new direction for the Slowtra in the past 2-3 months and have decided to take it more towards the performance edge. Am still not building a "Dog" level racing car but the mods moving forward will be more towards a harder performance edge. The ICE is being slowly reduced to a simpler setup. I've removed one Steg amp and the sub is sitting in my boot unused. Anybody want a mint condition Focal 27KX sub? Have got a couple of real performance mods lined up in the roster so stay tuned. And yes, it's really good to be back!!!!!
Thursday, November 20, 2008
Nissan Motorsport Parts Catalog for B15/N16
Does anyone have a spare good condition QR25 engine and associate gearbox lying around?
Nissan Motorsports Competition Parts Catalog
Just downloaded this from NNAnet.com. I will list all the B15 parts, along with other necessary information. PM me for any further information you would like.Parts information will be listed as follows:DescriptionPart NumberPrice (if i have gotten it yet)I tried to see if my dealer gets any kind of discount, but unfortunately, we don't. The best thing to do would be to call Nissan Motorsports directly to quote prices or make a purchase. Contact information is at end of post.
Forged racing pistons for QR25DE, 13:1 CR (set of 4)12010-QR25G
Forged H beam connecting rod for QR25DE (set of 4)12100-QR25R$335.33
Piston Ring set for above12033-2J201
Racing connecting rod for QR25DE (set of 4)12100-QR25R$1980.00
Aluminum flywheel for all QR25DE Sentra SE-R and Spec V13210-QR251
High lift, race valve springs for QR25DE. ceramic coated. (set of 16)13203-QR25R
Spin-on adapter for remote oil filter location; can be used with an oil cooler. SR20DE & QR25DE (Big)15238-E1119$25.50
Nissan Motorsports grounding kit, includes 6 grounding wires & instructions, smoked clear heat shrink. Custom fit to Sentra SE-R and Spec V w/ QR25DE.24080-BGNDK
Poly engine mount insert kit QR25DE.99996-1112G
Racing piston and rod kit for QR25DE.99996-QRRSP
Replacement friction kit for aluminum flywheel, 12310-QR25112311-QR251
Short Shift kit for 6 speed Sentra SER and Spec V 10/03+34101-B15S4
Short Shift Kit for Sentra with 5 speed and 6 speed transmission. 2.5 liter engine only 02-0434101-B15SS
Short shift kit for all MT. Attatches to the transmission pivot for a 30% reduction in throws. 2nd piece attatches to shift lever to re-center. 2002+34101-B15S5
Front Hawk 9012 Blue racing brake pad set.41060-HB268
Front Hawk HP+ Autocross brake pad set.41060-HB268N
Stainless steel braided 4-wheel brake line kit, DOT compliant. For use on cars with ABS.46200-22046
MISCELLANEOUSI'm not going to list all the information. PM me for details.
NISMO shift knobs: 10mm threads: polished aluminum, black aluminum titanium, aluminum w/ carbon fiber insert, titanium GT race, JDM special edition-black leather w/ red stitching. 12mm threads: titanium GT race
Spec R emblemgear shift pattern plate: 5 & 6 speed
Nissan decal: black, red, silver, white
Koni strut bump stop, trim to fit
Heat insulation
Auto Math Handbook
Driver suit patch, Nissan Logo
Sentra Spec V GT4/5: fiberglass nose, rear deck lid, LH door panel, RH door panel, hood panel, L 1/4 panel, right 1/4 panel, rear bumper. Lexan rear window. Window surrounds. Latch.
And much more, including race equipment.
CONTACT INFORMATIONToll-Free Order Line: 888.833.3225 9:00 am - 5:00 pm (CST), Monday through Friday24-Hour Fax Line: 615.223.3341email: nmc.race@nissan-usa.com
Address: Nissan Motorspors 610 Enon Springs Road East Smyrna, TN 37167
Tuesday, November 11, 2008
Data Lost!
I've had 3-4 hard disk crashes previously but never this bad. Usually the data can be recovered but the problem now is my hard disk is really dead. Nothing can connect to it! Does anyone know how to salvage data from my kaput h/disk? Small reward (RM150-300 depending on how much can be salvaged) offered. Who wanna try? Am on my knees begging...
Saturday, October 11, 2008
Dog III - Interior and Brakes


This is the mounting bracket for the Sparco seat. The mounting bracket is fabricated and then directly welded into the stock chassis sheetmetal.


Gear shifter and brake bias adjustment assembly. From Mike - To fine tune our front-to-rear brake bias, we installed a Tilton Brake proportioning valve from Bits n Pieces Motorsports. This valve allows us to decrease or increase the amount of rear braking power from inside the cabin instantly to compensate for fuel load or driver style.


Tuesday, September 23, 2008
Mike Kojima's Nitto Tyres Sentra Spec V Racecar aka Dog III - Suspension





Speedway Engineering rear antiswaybar with remotes for KW Shocks. Andrew - anti-roll bar stiffness is adjustable via the holes in the blade. The closer the hole to the arb the stiffer! Like the Nissan N15 DTC racecar the anti-roll bar goes through the spare tyre well

More hardcore porn stuff and "upskirt" shots to follow. Who wanna be the first to mod the Slowtra to similar Supertra levels?
Monday, July 14, 2008
N16 Manual Transmission
1. The gearbox model for QG16DE is RS5F70A, model code number 7J006. The gearbox model for QG15DE is RS5F30A. Nissans designation for transmissions is as follows, example RS5F70A:
RS=Remote Shift, FS=Fixed Shift
5=5 forward gears, 6=Forward gears
F= Front drive, R=Rear wheel drive
70=Model designation
A=Standard/open final drive, V=Viscous LSD & H=Helical LSD
2. The gearbox is made by Aichikikai Japan or Aichi Machine Industry Co., Ltd. Apart from transmissions Aichikikai also produces engines for Nissan.
3. The 70A gearbox is a pretty robust unit and is specced by Aichikikai to withstand up to 200Nm of torque. One fellow forumer from OZ Pulsar group told me the gearbox is capable of withstanding 500hp but I honestly wouldn't try my luck so far.
4. The USDM B15 Sentra with QG18DE runs the same manual gearbox. This simply means the same gearbox can be fitted as a "performance upgrade" for Bolehland Sentra XG-Ls. The 70A gearbox is also found in the P11 Primera but with a different bellhousing. This means many other SR20DE engine variants and car models in the Nissan lineup will use the same gearbox combination.
5. TCM Malaysia quotes the following gear ratios:
1st=3.333
2nd=1.955
3rd=1.286
4th=0.926
5th=0.756
Final Drive=4.167 (brochure), 4.176 (service manual). The service manual is correct while the brochure is incorrect and TCM never bothered to correct it for the Sentra FL2 and Sport brochures. I'm pretty sure it's never been corrected since the beginning! And how do I know which publication is correct? Well the service manual lists the following: Final gear teeth count=71, pinion=17. 71 divided by 17 will give you 4.176470588235294117647....
The USDM B15 SE had the following gear ratios: 2000-2001 B15 SE.. 4.437 (FD), 3.333 (1st), 1.955 (2nd), 1.286 (3rd), 0.926 (4th), 0.733 (5th). Compare, contrast and make your own assumptions!
6. The RS5F70 gearbox also comes with a LSD - Limited Slip Differential (not the drug!) variant. The gearbox with LSD fitted is RS5F70V. The LSD is of the viscous type hence the "V" designation. Needless to say the RS5F70A does NOT have a LSD.
7. Nismo did have an aftermarket LSD for the 70A gearbox once upon a time but this has been discontinued :( There are rumours the LSD for RS5F32A gearbox is the same and can be fitted to 70A gearbox. Who wanna be the first guinea pig to confirm this? I'll personally chiah you lunch if you confirm the theory above is correct or a bunch of hogwash. The Nismo LSD part number for 4.176 final drive RS5F32A gearbox is 38420-RS360.
8. Some useful links from SR20 Forum in regards to said gearbox. Excellent reading and knowledge material. Folks in this forum are pretty technical unlike some other Nissan forums.
"B15 tranny - why it's better than B13/B14"
"Disassembly of a B15/P11 tranny to install a friction type lsd"
"P11/B15 transmission swap into a B13/B14/P10"
I'll just stop at #8 for the time being before I bore you non-techies to death. Also you know how much we Chinese like the number 8 :) Hope the information has proven useful.
Monday, June 30, 2008
Dietary Supplements Part 2
Radiator coolant overflow bottle mount bolts replaced with silver anodized aluminium items. Three bolts hold the bracket to the car's body but surprisingly only one bolt holds the bottle to the mounting bracket. There is a tab on the other end of the bottle and this tab slots into the hole on rectangle hole on the bracket.
Inlet manifold support bracket bolts replaced with aluminium potassium bichromate items. Likewise bolts holding the EGR plumbing.
I've much more fasteners on the car scheduled to be replaced with lightweight aluminium and some titanium items when my budget allows. Watch the Dietary Supplements series.
Saturday, June 21, 2008
Nismo Badge Installed
Thursday, June 5, 2008
Black Thursday
I did a quick calculation of how much more I would need to spend on petrol and it came up to the following:
Currently am refuelling bout 40 litres every 1.5 weeks for my Slowtra. This means I’ll hafta refuel approx 35 times per year.
This would make my fuel costs
Yesterday
(40 X 1.92) X 35 = RM2688
Today
(40 X 2.70) X 35 = RM3780
Difference = RM1092
Deduct the RM625 rebate promised by our dear Gov and this means that I would be paying extra RM467 per year or RM38.916666666 per month.
Which doesn't sound that bad until you hear that Tenaga Nasional is to raise electricity rates by 18% for home users. This will then likely spiral the price of everything else upwards. Went for lunch earlier today and a bowl of large koay teow ting immediately went up to RM3 from RM2.50. Unscrupulous or Unbelievable! On top of that I''ll be moving to my new house soon which will mean that my new mileage will be approx 40% higher. Double Ouch! Now excuse me while I go sulk in a corner..
SR20 Forum's Excellent Suspension Faq
In case you need a rehash the USDM (US Domestic Market) B15 chassis code Sentra is practically the same as our N16.
If you want to mod your N16's suspension and don't know where and how to begin do yourself a favour and spend some time to properly read, understand and digest the faq. If you have questions you can always ask me and I'll try to answer to the best of my ability. Now where can I find someone to bend my rear beam in Bolehland?
Tuesday, May 6, 2008
Nismo Badge Here!
Nissan Sentra Sport Edition
Now on to the million dollar question. What "sporty" changes did TCM make? The changes are... drumroll please!
- "Smoked" headlight and rear lights
- Black tricot seat fabric
- Insulation/upholstery on rear trunk lid removed
- Only the top and bottom rows of the front grille are chromed. Rest is painted a metallic greyish tinge
- No bird maple panels on centre console (less plastic trees to kill?)
- No rear seat centre arm rest
- Different design wheels but still puny sized 14 X 5.5"
- No UV-Cut glass
- Rear "Sport" badge stolen from the Latio Sport
And the Real Performance Mods are....
- Unfortunately a Big Fat ZERO unless you consider a very very very slightly better power to weight ratio from the deletion of the rear arm rest and rear trunk lid insulation.
Lastly the only thing that makes your heart beat faster on the "new" car is it's price!
- Sentra Sport 1.6M = RM85,750.00
- Sentra Sport 1.6A=RM89,800.00
Last I knew my better N16 cost roughly the same. Ouch! Sorry for coming across as a frustrated old fart but that's how I feel about the Slowtra Sport edition which is even worse than the Nismo edition. What a big fat shame!
Sunday, February 10, 2008
Slowtra's First Dyno Charts
The torque curve and output figures
As you can see from the power and torque curves there's a very pronounced dip between 3500rpm to 4000rpm. Most people actually feel this deep as a surge of power thinking the engine's VTC is like VTEC. Wahahhahaha! This proves once again that butt dyno's are only good for feeling power/torque transitions rather than gains. I have a set of Hot Bits stainless steel headers and exhaust b-piping on order. This should hopefully get me some gains and
Friday, February 8, 2008
Happy Chinese New Year 2008!!!
Wednesday, February 6, 2008
Nismo Badge

I just need the Nismo badge. Don't need the "Z-tune". If this cannot be had I also don't mind a similar looking badge (just different "O" alphabet treatment) found on the Latio Tiida S-Tune. In all honesty a proper badge looks so much better than a sticker decal. Nismo Japan online website only lists the following badges


I don't mind having the above badges if these were at least 50% larger. At only 100mm width X 28mm they're way too small...
Saturday, January 12, 2008
Chit, Chit Chit! - Birds in my Engine Bay?
Checked with fellow Slowtra owners and apparently this problem is nothing new for the CKD Sentra. Everybody suffers from it. Anybody got kangtao for Nissan Bluebird Sylphy G10 belts direct from Japan? Apparently this is the only cure.
Sunday, December 16, 2007
Slowtra Gets Dynoed
The PC holding the dyno software. The display next to the PC is the Dastek's display.
Pix of the Slowtra all hooked up to the dyno PC and the huge industrial spec blower which is used for cooling during repeated dyno runs. Without such a fan the likelyhood of overheating is high as the car is stationary with no airflow.
Closeup of the display
The bill came up to RM100 for the baseline dyno. Did it in a packaged deal along with some friends who were also doing the dyno. Aerotech previously charge RM200+ for a baseline so the cost is very reasonable and competitive with what Speedworks PJ is offering. If you decide to use Northern Garage's dyno, work out the cost with Ah Loy (boss of Northern Garage).
And now on to the question everyone's been waiting (that's if they haven't been bored to death first reading to get here) What did the Slowtra dyno for?
How does 106hp and 150Nm of torque at the engine sound to you? If you ask me that's pretty decent for a stock QG16 engine once you factor in power steering pump losses and weather variables (not sure what correction factor was used and the Northern Garage mechanic couldn't tell me). The only "power mods" I have is a K&N drop-in filter and Nippon Denso Iridium plugs. I did try to get power readings at the wheel but the Dastek gave me a ridiculous 79hp reading. I doubt the manual transmission results in a 25% power loss. The mechanic blamed wheelspin but I think that's even more ridiculous with only 106hp/150 Nm of torque. Dyno graphs to follow once I take a decent picture of the graph printout. The PC was not able generate a softcopy. Bummer!
Monday, December 10, 2007
S**t Happens!
The SP got broken into recently (Nov 30) with numerous parts stolen including the one off full carbon pre-preg bonnet. My heart goes out for Mugil.
Publishing this note on behalf of Mugil...
"SP was broken into on Friday morning and the following items have been stolen from the car:
- Full CF Bonnet
- Momo Corse 78 Steering Wheel
- Works Bell Rapfix II Quick Release (only the half connected to the Steering)
- CF Side Mirror
- Matspeed J5 ECU
- R3 CF Gear Knob
If you know or hear or offered any of the parts stated above do contact me at 012-3350607. A small reward will be provided if any of the items above can be recovered."
Anyone wanting more pixs or info on the stolen items is welcomed to email me or comment in this blog.