RXReviews

Singapore Rotary Performance Parts Reviews ….. RE Amemiya | Autoexe | Knight Sports | Greddy |

Shootout: RX-8 AT vs MT Dyno Comparison

What happens when you have 2 club guys with new rides and a lot of spare time? A Dyno shootout of course! Run at ST Powered just a few days ago, we’re pitting a stock, brand new JDM 6MT against a souped up JDM 4AT. We’ll also contrast a previous run done on a stock 4AT as baseline.

JDM 6MT: Mostly stock, HKS Hipermax II, Knight Sports ECU Remap
JDM 4AT:  RE headers, Fujitsubo exhaust, HKS open pod, battery relocated, Cusco suspension and braces, etc etc
JDM 4AT baseline: Stock

THE RESULTS (Horsepower at wheel):

JDM 6MT:  202.3 HP
JDM 4AT: 160.1 HP
JDM 4AT baseline: about 140 HP

May 3, 2007 Posted by | Others | 2 Comments

Rugrats (the cartoon) makes underwear?

Not a conventional post on RXReviews but i just couldn’t help it! Check out the Rugrats underwear below – one of gfoo’s mates on a recent trip to Bangkok

 

http://leinadnat.blogspot.com/ wrote: What do you get when you put 8 guyz & a gal at the Songkran festival in Bangkok with loads of Alcohol??


A Drunken Water Festival Orgy! 🙂
Angel-Mystical succintly captures the fun experience we all had in her blogspace!
Nevertheless, these priceless pictures paint a thousand words!

Check out the Rugrats underwear!!! It’s a bit sexier than the one Tommy’s wearing

April 26, 2007 Posted by | Others | 1 Comment

Mazda Motors Complains to Japan, Restricts RX-8 Parallel Imports to Singapore

The rumor has been verified. Apparently, Mazda Motors Singapore has lost so much business to the PIs on the 8, that an official complaint has been made to Mazda Japan, who will restrict the availability of the 8 to parallel importers to Singapore. Sources within the PI industry here have verified this, and added that short-term supply of PI 8s will be affected, and customers now have longer waiting periods of 3-6 months for some models. This contrasts to the average 1 month waiting period for models such as the Type S. Existing stockpiles of 4ATs and 6ATs are all but gone, and could soon face shipment delays.  However, PIs are rerouting their supply networks, probably obtaining 8s from alternative channels within Japan.

(NB: Mazda Motors ONLY carries the detuned Euro-spec manual 8, and not the ATs -80% of all 8s in Singapore being ATs)

March 13, 2007 Posted by | News & Events, Others | 1 Comment

We’re Back!!

Ok, so i’ve been a delinquent arse for not posting for months. Now that I’m more or less back from my travels, I’ll be updating this blog as much as i can.

January 15, 2007 Posted by | Others | Leave a comment

Review: Mazda 3 SP 2.0L

What do car buyers really, really want? No one really, really knows.

Two weeks ago, you read about the Honda Civic returning to the 1.6-litre segment. This week, Mazda is doing the exact opposite, by introducing a 2-litre version of the Mazda 3.

The Mazda 3 SP 2.0 distinguishes itself from the 1.6-litre models by the amount of kit it wears.

The hatchback model tested has tasty 17-inch alloys shod with sticky Bridgestone Potenza tyres (the 1.6 models get 16-inchers). It also has bigger and sportier bumpers with a nifty spoiler above the rear windscreen.

Other cosmetic upgrades include striking LED tail-lamps, a new snout and front grille.

The interior gets a mild makeover too, with new graphics applied on the instrument dials. The 1.6 models get new white-back dials with wood-coloured accents on the dashboard while the 2.0 wears RX8-style red-on-black instruments matched with black-grained inserts.

Power from the 2.0 nearly matches the top-rung Civic, being only 8bhp and 4Nm of torque short of the 2-litre Civic Si’s numbers. Compared to its own 1.6-litre sibling, the SP 2.0 feels properly energetic. The tyres even let off a chirp when you attempt full-bore starts.

The car is especially spirited when the tacho reaches the 3,000rpm mark. Having a fifth gear like the Honda Civic would be nice, but the Mazda is torquey enough to make up for it.

The 3 has always been among the better handling cars in its class and the facelift sees further finetuning, no doubt to match the Civic’s class-leading standards.

The extra juice from the 2.0 is perfectly in tune with the dynamic upgrades. Quite significantly, the revised chassis setting is more settled than before. Even on low-profile tyres, the cabin is rarely flustered by badly paved roads.

Where the 3 falls behind the Honda is in the space race. The 3’s 2,640mm wheelbase pales against the Civic’s 2,700mm (only the Nissan Sylphy and Hyundai Avante can match this). But the compactness will no doubt endear the 3 with those looking for a cosier and sportier car.

Last but not least, this top-of-the-line model goes for less than what a Honda Civic 1.6 commands.

This article first appeared in ST on September 2, 2006

September 21, 2006 Posted by | Others | Leave a comment

Dynotest: RX-8 4AT Stock

One of the good bros in Singapore just did a dyno at ST Powered last weekend. (Apologies for my crummy picture taking – smoke too much, hands shiver). In summary, the results were:

  • Speed: 170kmph@6496rpm
  • Power: 105.8HP@5491rpm
  • Torque: 136NM@5491rpm

True that the system was not able to capture power above 5500rpm, but looking at the power curve’s linearity, i would say that it wouldn’t even hit 130HP at 7500rpm.

September 11, 2006 Posted by | Engine, Others | Leave a comment

Review: Shell V-Power vs SPC 98 Petrol / Prestone Octane Booster

Who says fuel doesn’t really make a difference? I’ve always been using V-Power as past experiences tell me that the car feels livelier and more torquey with that brand of fuel than any other brand in the market. In general, Shell V-Power is smoother, provides better linear acceleration, and definitely seems to provide the power when you need it (pedal to the metal).

Just a couple of days ago, as i was running out of gas, i went into SPC to pump their 98 octane fuel. And boy was i disappointed. Compared to Shell V-Power, SPC 98 is:

  • rougher and noisier – revs are much louder now
  • the car seems to be out of breath, especially in low to mid torque
  • exhaust emissions smell a little better though, V-Power smelled awful
  • cheaper

This then begs the question….why? Well, i think it boils down to additives in the fuel, and the amount of hydrocarbons packed per unit of fuel. Premium grades of petrol often contain more energy per litre due to the composition of the fuel as well as increased octane. A simple explanation is the carbon bonds contain more energy than hydrogen bonds. Hence a fuel with a greater number of carbon bonds will carry more energy regardless of the octane rating. A premium motor fuel will often be formulated to have both higher octane as well as more energy.

The power output of an engine depends on the energy content of its fuel, and this bears no simple relationship to the octane rating. A common myth amongst petrol consumers is that adding a higher octane fuel to a vehicle’s engine will increase its performance and/or lessen its fuel consumption; this is mostly false—engines perform best when using fuel with the octane rating they were designed for and any increase in performance by using a fuel with a different octane rating is minimal.

Using high octane fuel for an engine makes a difference when the engine is producing its maximum power. I’ll stick to V-Power

Review: Prestone 0 to 60 Octane Booster
Since we’re talking about fuels here, might as well do a short review of the Prestone 0-60 Octane Booster as well. One word of advice – NOT. The nice packaging and nifty artwork flames hides a completely useless and potentally cat-unfriendly product. The 10 points of octane increase is really only 1 real octane number as 1point = 0.1 octane rating. When i put this in, the car was slower – Gtech runs were about 0.5-0.8 slower in the century sprint. Now i know that this could have been an anomaly, but the coincidence and ‘butt test’ was compelling – the Prestone Octane Booster does NOTHING for performance, and in fact decreased performance. Also, i’m sure we all know how any fuel additive is potentially harmful to catalytic convertors. For those that really want a boost, mix in toulene/zylene or go raffles marina get ELF speedboat petrol

September 6, 2006 Posted by | Others | 11 Comments

Putting the synthetic vs mineral motor oil in a rotary debate to rest

Over the years there has been much debate on whether synthetic motor oils can be used in rotaries. Previously, FCs & FDs did have seal swell issues due to reaction with additives in a relatively infant synthetic oil industry then. Today, there are a whole new range of synthetics – from PAO esters, double esters etc. Note however that some oils labelled fully synthetics are severely hydrocracked (read refined) dino oil – only the pure PAOs can be considered lab created. Then again, it is not uncommon to find mixtures of hydrocracked dinos and esters marketed as fully synthetics. So, will today’s synthetics cause problems with the RX-8 SE3P?

Yes and no – rem that a rotary engine needs to inject and burn motor oil for cooling and lube at the same time. If the oil doesn’t burn cleanly (and the culprit most of the time are additives and high-ash content), then deposits are left behind – that of course isn’t ideal.

So should we still use synthetics? Yes – synthetics by definition have qualities that can only benefit the rotary, BUT use only synthetics blended by rotary tuners, have proven efficacy, or are guaranteed by the oil manufacturer. Use anything else and it could be a case of Russian roulette. The brands i’ve used without problems and i highly recommend, ranging from 30wt to 50wt viscosities include:

 Idemitsu Fully Synthetic Rotary (avg S$170 per oil change, limited availty at Monster Garage)
Trust F2 Synthetic Rotary (it’s actually a semi-syn. Avg S$150 per oil change, avail at Autobacs)
 R-Magic Racing Energy for Rotary (Fully Syn, avg S$270 per change, avail at Autobacs)

So the advice from RXReviews is NOT to use any other non-rotary synthetic for now, until Mazda issues a circular stating otherwise – the safest bet is to go back to Shell Mineral, but the smoothness and slight performance advantage synthetics bring is compelling. Myself? I use Idemitsu 30wt and i’m very very happy with it.

And for those who’s asking what ATF oil i use? Redline Fully Syn High-temp ATF. It def makes the tranny smoother, a very slight performance increase but most importantly, peace of mind as i really whack my gears!

September 5, 2006 Posted by | Engine, Others | 3 Comments

Ultimate Driving Watches

A watch nut that i am, i’m updating my collection to fit in with my passion for cars. Here are some watches that I highly recommend for the driving enthusiast – without breaking the bank!

Those I own:

Seiko Sportura Limited Editions, Tissot T-Race

One I plan on owning sometime soon:

Zenith Defy Extreme

The one that i’m searching high and low to find:

Image Hosting by Vendio Mazda Rotary II Watch, available at Mazda Australia at aga AU$329, and Apex-Auto-Parts.com at US$175 + shipping.

September 5, 2006 Posted by | Others | 5 Comments

RX-8 Replacement Parts Wholesale

Need replacement parts for your RX-8? There is one distributor in Singapore where most of the smaller workshops go to for parts – definitely cheaper than sourcing from MM or GR.

Sin Guan Hin Auto Parts Co
24, Veerasamy Road,
Singapore 207329
Tel: 293 0863 (3 lines) 295 1487
Fax: 2967648

23, Lembu Road
Singapore 208453
Tel: 298 1222 (3 lines)
Fax: 298 1472

 Another source you might want to try too is:

Fong Yat Motor Co Pte Ltd 
Blk 685 Race Course Rd #01-324 
Tel : 6293 5722

August 29, 2006 Posted by | Others | Comments Off on RX-8 Replacement Parts Wholesale

Century Sprint 4AT Timings

3 NA 4ATs tested their timings that evening with timings ranging from 9.1 thru 10.5. Here’s what we found that was interesting – the discrepancy of over a sec is really due to how and when we shift gears. In my first run on either fully auto or shifting at redline (7800 thru 8500 in multiple runs), timings was consistently at 10.5 thereabouts. But when i did a run shifting at 7k, we clocked 9.5. Derrick clocked 9 using the same style. This speaks a lot for mythbusting siah – the car is not necessarily peaking at higher rpms.

Fastest 6MT timing is 6.7s by steffi

Timing method: Gtech Pro
Location: Level straight road

August 28, 2006 Posted by | Others | 1 Comment