The GTM Supercar @ Summit Point

[DeathMetalKillsEmos]

Alright, I have a question. I'm not rippin' on your driving or anything, I couldn't drive as fast as you if I wanted so this is just a question. But why no heel-toe? Just too hard on the tranny or what?

[Dgadude]

Is this for real? The driver, not the car...? How about: Try keeping your hands on the wheel more often and not the stick! Or: Learn how to heal-toe, double-clutch downshift AND rev-match! Also: Have you ever driven through the carousel in your life AND why so far inside on 1, 9 and 10!?!? And the car will go faster if you gas longer a brake later! Conclusion: WHO IS THIS DRIVER AND WHAT QUALIFIES HIM TO DRIVE THIS CAR? Sorry but take it from a former GT3 BMW driver...this guy needs work.

[skipperwbw]

are you using a short throw or standard throw trans. linkage........ very cool vid.....thanks for posting.......

[keefer2111]

Nice Sunday drive with the Mother inlaw.

[pierocks301415]

wow great sound i really want one of these but im goin 2 college soon so i wont really have time to build it. its makin me crazy

[halosapien1]

hehe the batmobile



[C0210097]

F*&K that's fast! can feel the acceleration just watching

[MnBrent1]

Man I LOVE this video. The scream of an LS motor!!

[Pube83]

@MnBrent1

And the clunky sounds of a kit car.

[bobbywayne310]

I live 2min from this track u can here all the cars and bikes every weekend

[rollercosterrr]

sounds reeeeeaaaaal niiiiiice

[spsickfastsupra]

looks like that cars some real fun.. nice sound inside

[druidbee]

Man I love hearing that thing rip.

[Neweraoutsourcing]

I need one of these in my life!!!

[MonkeySo6]

@Neweraoutsourcing Me too !!!

[EPFANTCB]

I am a fan of Factory Five having said that the difference between a true "Factory " build and these cars must be finish.

The car is noisy (nice engine music)

I guess having a fast car with no refinements is okay for the track but everyday?

I prefer putting twins on my car and not hearing wind noise or banging.

Please don't miss-understand still a fan but not for all year driving.

[112namrepus]

@EPFANTCB

Yeah I think most people could have done a better job with the GTM's I have seen. Like MOMO interior or better seats and gauges that look like they should be in a nice car instead of the parts store sales rack ones.

[Panzer928]

I don't think he knows this track too well- missing alot of apexes, braking way before the zones, and generally lacking smoothness, and flow from corner-to corner. Bad ass car, though.

[thatoneguyjosh]

@Panzer928 i dont know about you but if i just got done building it or whatever i would be taking it really easy myself i would be terrified of wrecking it

[budbarker57]

Would mapping the mixture to lean at 0 throttle position stop the backfiring during braking?

[nasonguy]

you wouldn't wanna run your decel map too rich, that'll fry a piston...

It would get rid of some of the afterfire, but not much, plus he would soon blow up his motor...

it's just the way the exhaust is set up, when fuel hits the hot metal of the pipes, pop!

[trackvenom]

Make less use of the shifter, choose a higher gear. ie, when entering turn one, enter in 3rd so you aren't shifting 2-3 in mid corner. Apex's on 1-4 are a bit off, but the rest of the track looks ok. Shorten your braking zones, stop coasting

[anthonyrocksworldz]

You know you have yourself a real car when it doesn't have those bitch ass paddle shifters.

[zzzilxlizzz]

I thought a real car had an engine and 4 wheels etc.. Thanks for enlightening me that a real car only shifts your way...

[TCF2148]

@anthonyrocksworldz LOL!!

After all, this ain't no video game!!

[jon666138]

You've got to work on your braking and not coast into corners bro. Heel toe...You'll spin that thing if you don't.

[keefer2111]

My Brother inlaw bought a Cobra Kit from Factory Five, everthing fit like a glove.

He used a 429 Ford? all I know is I feel safer in a plane..its FAST!

He has built a few others with his friends

he said its easy.

[cmonkey9999]

The GTM's are much more difficult though. I've heard they take up to three times as long as a cobra.

[112namrepus]

@cmonkey9999

Yeah, but if you have mechanical skills you will be fine.

[skipperwbw]

@cmonkey9999 have you ever gotten great satisfaction in your life from something that was easy or quickly accomplished.....?????? 

[miamiforlyfe]

whats the top speed on that???

[AMXhotrod]

Nice ride. Anyone who has ever raced a car knows that a short / uncorked header exhaust produces popping under deceleration. It's merely unspent fuel igniting in the collector or mufflers, which ever the case may be. Better to pop on deceleration than run lean and bake a piston.

[ls6cobra]

The poping you hear is backfires from a LS1/LS2 engine, The reason is that the LS1 uses a 360 degree crank that requires double pulses in the firing order. These double pulses will send really high velocity gas pulses through your exhaust and cause the popping on decelerate and like a blurbleing noise at idle

the car is called GTM and its made by Factory five racing

[pancakepie2]

Could it be running rich?

[gixrider1]

What type of car is this?

[kleiberfarias4]

factory five gtm!

[thyubernoob]

WOW, never know there were so many pro racers on you tube! Opions are like assholes, everyone has one, and most stink!

[redghost105]

@thyubernoob opinions are like women orgasms....I dont care if you have one

[inagod]

exaust leaks,popping on decel?try milling flange flat,use copper gasket or good composite

[depravedone]

How much weight did you save by not installing the shift boot? lol j/k nice car

[71DatsunZ]

Those sounds are just the exhaust noise with a little pipe rattle. Sweet exhaust sound! Looks like a ton of fun, but practice some heal and toe and late braking!

[bubbabouyi]

if thats a super car , so isnt my smart car

[BowtieBandit]

Um, what?

[snowboard2000n]

i dont get it.

[nicholasj512]

you're dumbass... what the hell...

[dannychen44]

question to uniqride or owner of the car... what's that clanking sounds at 0:19 and 0:44? sounds like body panels.

i haven't seen other in-car vids of the gtm, but are they all like that or is something loose?

[dannychen44]

btw, what engine+tranny combo are u using?

also, i notice u have non-ffr instrument cluster; what do u use, and any issues w/ (re)wiring?

nice track car!

[BowtieBandit]

The car uses a GM LS series engine, whichever is used on the car is the choice of the builder. The rear end is out of a Porsche. The cars are super light, and even with just a stock LS1 are still BAD fast. I've seen many with the LS7 and they haul major ass.

[molybdan]

The sound is backfiring from the exhaust. The GTM uses pretty short pipes and minimal muffling.

[selby06]

it's excess fuel detonating in the exhaust manifold, possibly even in the mufflers...the engine is running a little rich, but that's probably how they want it tuned for this track. It's pretty cool.

[dizzyarmstrong]

im glad someone knows what they are talking about!!

[ZO6Driver2]

He's just playing out there, it's not a race!! Give the guy a break. What do you drive on the track?

[yz4rmax]

yeah thats funny haha, he shifted from 5th into 6th entering the corner and realized he was getting no rpms haha so he went shifted down to fourth.

[testdrive381]

hey give him some slack he problably drives better than you

[ivanavy]

i doubt he really knows how to shift the gear, at 06:10, he even shift from 5th to 6th while he was entering the corner and should downshift to 4th. this simple gear mistake can't be happened when u know how the gate is designed. and also at 06:34 he slowed down the car from a very high speed by simply braking without downshifting, and shift 6th directly to 2nd, how did that happen?

[skierman64]

Ask any race driver, he'll tell you that the braking is done with the brakes, not the motor. Brake parts are a lot cheaper than motor parts.

[arexeight]

It really bothers me when people who clearly know nothing about racing try to act as THE authority in these comments.

Yes skierman, ask any real race driver (something I assume you have never done) and he will tell you that you have to be in the powerband before entering a corner so you can control the cars balance with torque. You do use the brakes, but you also blip the throttle (heel-toe) to get in the right gear for the corner for the reason mentioned above.

[ajsyms]

You are so hyprocritical. You said it really bothers you when people come on here and act as THE authority but you have then gone on to basically correct and overide what skierman said.

[arexeight]

glad that bothered you

[ajsyms]

lol and why's that

[antireversion]

I have known Brian for some time and know he can do well as he did in later video. I know it was just the new car teething problems. As a driving instructor it is just my nature to be critical. No offense intended. I will send a personal note to his email address.

[blatsucka]

The backfire is due to running timing a certain # of degrees past tdc or before in order to get maximum explosion at desired rpm. I'm sure his crew or whoever tested and retested the engine to get it exactly how they wanted. When the motor slows speed the firing is still happening at the desired timing hence the unburnt fuel. ANTI he shared his video for our enjoyment, not for critisism I'm sure.

[antireversion]

It looks like you treat summit as a drag strip. You have a fast car but your video show you are a mess in the cockpit. The usual procedure is to downshift before you turn in to a corner. You shift twice as you are driving through turn 10. Hire a driving coach and learn "how" to go fast.

[ddteman]

That is Bryan Dobyns Last years GT1 Champion,2003 FFR West coast and East champion.2002 National champion and track record holder in anything he has every driven around Summit point. It is just that that car had not been developed for track use and has a tendency to snap oversteer under acceleration. That's why he is driving it so slow through the turns. This GTM was a prototype. It is also on street tires. Trust me any that run SCCA, BSR or NASA knowns he can drive the wheels off anything.

[batchelorboy2007]

I think this guy knows how to drive. Looks like he's in a car he's not driven too much, hence 'taking it easy'.

[TrDillinger]

Nice kit, but what engine are they running? C6 Z06 427? Thats not an LS1...

[JRVibefreak]

from outseide this is the best looking car ive ever seen~!

Man i will buy this kit for sure!

[Darkstarp]

I can attest to that! You would hear the same sound and have the same effect with almost any high power/ highly tuned vehicle.

[uniqride]

Congaman, this is the backflaming in the exhaust of non-burned fuel (sometimes you'll see the flames getting out of the exhaust) ... this is nothing unusual for a Supercar pushing it on the Track...

[Congaman41]

Nice car...but what is that knocking sound you hear all the time....doesn't sound to well!

[607speed]

That's called backfire.

[ZedxElite]

This seems to be correct to me, haha.

[zilgiank]

It sounds like suspension to me.