650HP On Stock Internals | Honda Swapped KP61 Starlet [TECH TOUR]

650HP On Stock Internals | Honda Swapped KP61 Starlet [TECH TOUR]


– With 650 horsepower from a turbocharged
Honda F20 engine and only a touch over 800kg, there’s no argument here that
Angel’s KP61 Toyota Starlet presents a fairly phenomenal package for circuit
racing. We’re here with Angel from Horsepower
Techs to find out what makes this car tick. So Angel for a start, when you are
deciding on a platform for going circuit racing, power to weight, obviously that’s
key but you also want a bit of wheel base and track in order to make the car balance
so maybe the KP61 with 650 horsepower wouldn’t be my first choice, although I do
love these cars. So let us know where you mind was at when
you were choosing this car. – Well honestly being the car that it is,
just being a little bit different than anybody else, love the car since I was a
young kid, always loved the Toyota Starlets, any Toyotas overall, always wanted
to have a right hand drive, so finally I got one. I’ve been tracking her for quite a few years
now and it was just time to make a little bit more power so. – Before we get into the power, you have
owned this car for a long time which you’re just alluding to but it’s got an interesting
back story which I wanted to dig into a little bit. So it’s got a bit of history here so can you
tell us where the car came from and how you found it? – OK so basically the car came from Tokyo
and actually they used to use it for a drift school. So from the information they gave me back
in 2000, they built 10 cars identical and basically for drift school, I was just lucky
enough to actually go in the auction and I found it. Right away when I saw it, I had to have it,
I had to have it, brung it over and ever since it’s been a great little car. It just creates a lot of attention, I really
enjoy feeling like you’re in a go-kart on steroids because that’s basically how it
feels when you drive it. But no it’s been great. – Now the condition that you bought that
car in, I mean that’s a pretty lucky situation sort of stumbling upon that on a Japanese
auction site. But it is essentially, other than the aero that
you’ve added which we’ll get into shortly, essentially was already the same with the
wide body kit on it? – Yes actually these are the factory TRD
wide body kit for it. The car already had the paint job,
it already came with a supercharged motor so it made 180 horsepower which was
awesome, great to drive. – Now that was with the Toyota 4AGZE engine? – Yes supercharged with a basically stock
supercharger, it was completely stock. And it was awesome to drive I mean it was
really great. It just needed a little bit more for the
application that I’m over here pushing it to actually track the car. When it first came to me it still had the
rear drum brakes, it still had the original brakes in the front so it was really hard
to stop, and the corners. – Yeah probably stuff that would be OK for
a couple of laps when you’re drifting but when you want to stop repeatedly from high
speed lap after lap, you need a little bit more? – Yes and you know a lot of people will ask
me why should I step on the brakes before to the point, it’s like well I got to pump my
brakes so they won’t fade out. Not everybody knew what was going on. Not being the slowest, not being the fastest,
it was just having fun and you know it was a crowd pleaser. – Let’s talk about the current build of the car,
I assume when you decided you were looking for more power, those 4AGZEs we’re pretty
intimately familiar with those back home as well and particularly the supercharger
becomes the restriction there. Not really able to make a lot more power with
a 4AGZE with the stock supercharger. Pretty common though to go to the turbo
setup on the 4A base, you haven’t gone that way though, why did you discount the 4A
with the turbo. – Well I mean it’s kind of like I wanted to
make a little bit more power because I had, later on I had more plans to actually build
the car to handle the power. RIght now I know she’s overpowered at the
moment. The motor, I just had it, I had all the parts,
I figured why not, let’s just do something a little bit different. The fitment on the car itself, the motor looks,
fitted really well. But by being the platform it is, it’s just
basically reliable, fun and that’s really what I was looking for. To make good power and still keep it just
fun. – Now that F20C, obviously it helps that
these come out in a rear wheel drive application so you’ve got the ability to
run the matching Honda gearbox as well. But in terms of adding a turbocharger to
what was a naturally aspirated two litre engine, what’s been required in terms of the
internal setup of the engine to cope with boost? – Well at the moment she is completely stock,
at the moment. The plan is basically, the motor’s going to
come back out, we’re going to actually put forged internals, we’ll probably keep it at
the same power or less, we just want to rebuild it at this moment. But the car’s, I mean these motors are
capable of making so much power, these motors are so efficient, it has a
3582, she pulls pretty good for what it is. But again it is a lot of power for the weight,
that’s something that we’re going to be working on over the winter, to actually dial
her in really nice. So for next summer we’ll be able to
compete. – Alright so talking about that power level,
obviously when you’ve got a turbocharged engine at your fingertips, you’ve got the
ability to adjust the boost and make just about within reason, whatever sort of
powerband you want or power level that you want so let’s start by talking about
the electronics, and I’ll sort of get into the boost control as well, what have you got
controlling this engine? – Well what we like using for our shop
is basically AEM. It’s a series two box, basically I have the
Race Spec also from AEM. The real nice thing about AEM is basically
is it allows us to do everything that we need to, it’s kind of simple for us because
we’re so used to working with AEM also. – Now AEM have got their Infinity range,
you’re running the series two, their Infinity is their newer ECU although
now that it’s been out for a fair while, it’s pretty well established, so what would
drive you between the series two and the Inifinity? – You know honestly, I hope AEM’s not
listening to us because I really do want Infinity, the reason I use the AEM series
two box is because really this whole swap I had in a different car so it was all
available for me. So basically it works, it works great and
we kind of transferred everything over to the Starlet. But most definitely I would like to grow
and really go with the Infinity but meanwhile it works so it’s like if it
works… – If it isn’t broken don’t fix it of course. Now what are you using there for boost
control, are you doing this through the ECU or is that something separate? – No actually going through the ECU,
I mean at the moment, today being SEMA, we also learn a lot by going around. Really we would like to get the Turbosmart,
the new wastegate they released. That’d be really nice, so we’d be able to
control a bit better. But right now it’s basically all from AEM,
we’ve just got three port boost controller on it. Low wastegate pressure just because again,
the car’s making more power than it should for the body. But again hopefully over the period of
time we are able to use everything that we have thrown at it and still be competitive
and fast. – Now again given the fact that you’ve sort
of mentioned a couple of times now, you’re basically making more power than
you can put to the track. Are you using anything there in terms of
gear or speed dependent boost or are you looking at adding traction control
at some point? – Yes we are looking at traction control,
most definitely the car’s still under development for next summer so we’ve
still got little things that we have to do. But most definitely I want to look into
traction control, that’s the main, the main goal right now is to dial her
in for traction. Making the power, great but the key here
is going to be traction. So we still have a lot of work to do but
sooner or later it’ll get there. – Now I did notice that on the top of the
trans tunnel there you’ve got AEM’s IMU or inertial measurement unit with
G force as well as a gyroscope so can you tell us what you’re using that information
for? – Well I mean we want to do some data
logging also so we are able to actually fine tune and basically get more
data back for our suspension, G force, you know from the track itself. It is something new that we’re going
to be experimenting with. We have used it before, customer’s car,
but my own personal car, this is something that’s going to be new for us. So I’m hoping to get better data so we
are able to actually fine tweak everything a little bit better. – In terms of getting that data you’ve
also got the AEM colour dash there as a driver display. Also what are you using for a central
logging location, how are you logging that data? – This is something new so it’s going to
done next summer, we really haven’t, I mean we played with the system, it’s great,
but right now one of the main reasons we used it was because even from before,
never had a cluster, so never had RPM miles per hour, never had anything,
it was all basically drive and just.. – Off feel. – Just a feel so now it’s going to be a little
bit nicer and the input that we’re going to get back, that’s what we like to use
back and dial the car in a little bit better. – Now I just want to touch on the fuel
system for the car as well, what fuel for a start are you running it on? – Well I’m using, basically for fuel system,
I’m using Radium, great quality. – So that’s the fuel cell in the back to
start with. – All the fuel cell, basically everything’s
related with fuel, except for the fuel rail that we made our own custom one. But the fuel pump, the fuel centre unit,
the fuel cell itself was from Radium, we are using One Ethanol, 117 octane
which is the R and basically at the moment, we just try and get the motor a little bit
cooler. – Well ethanol definitely helps with that
and also helpful when you are running still that stock F20C with a compression
ratio designed for a naturally aspirated engine, you’ve added boost so yeah the
ethanol’s definitely going to be helpful there, making sure the engine’s going to run
reliably. In terms of injectors, what are you running? – Injectors, I’ve been using IDs, 2000cc. And like right now basically we have two
maps, so in other words we have a race fuel map and we have a pump gas so if we
want to take it on the street and enjoy it, we could also do that so we just change
the fuel and enjoy it on the street. – Now in terms of the overall look of the
car, it’s impossible to not notice the significant aero and I’m guessing that’s
not how the car came out of Tokyo. So can you talk to us a little bit about the
aero development you’ve done on the car? – Yes so basically APR gave me, KC from
APR gave me a lot of help to actually do a starting point of the Starlet. Again same thing, they’d never had, for
example the GT1000 APR wing they’d never had on a Starlet before. So going back and forth, he actually helped
me a lot where basically we are able to at least get it to a starting point. And then from there we’d get some feedback
and see if we got to make any changes. But the splitters, everything’s from APR,
the rear diffuser’s custom made by us also. It’s adjustable, it has a 10 degree adjustment
on it so there’s quite a few little things that we did to actually improve it but again
it’s going to be so much to actually get it dialled in but once we do we are hoping
to actually be really competitive on the track. – Look Angel the car really is a work of art,
I mean I’ve got a personal passion for older Toyotas, having gone through a few myself
so it’s really awesome to come here to SEMA and see such an extreme example. Now you’re running this car in the Gridlife
Time Attack series. Obviously you’ve got a little bit of
development to do over your off season, over winter but we wish you all the best
for next season and we look forward to following the development of the car,
thanks for the chat. – Thank you so much and if you guys want
to see more pictures go follow me on Horsepower Techs but yeah. – Where could people go to find you at
Horsepower Techs? – Howerposer Techs Instagram, Facebook. And hopefully for next year, hopefully you
guys can see us again, we have another project that basically we want to bring for
next year. – Can’t wait to see it, thanks Angel. – Thank you, thank you so much. – If you liked that video
make sure you give it a thumbs up and if you’re not already a subscriber,
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About the Author: Michael Flood

16 Comments

  1. PS, it's not too late to get loose this Christmas in your HPA t-shirt shaped nipple warmers. Dive in here: http://bit.ly/MerchHPA – Taz.

  2. Although the Honda mill can’t be denied as a viable option. For a host of reasons…I’d have stuck with the 4A

  3. Nice build!πŸ‘πŸ‘ was just wondering about what are your guy's future plans for the v8 86? Ohh and to report I am thoroughly enjoying the courses you guys put together be it hpa or at racecraft; everything is easy to understand, and the know how that would have costed me years to accumulate was here. Lastly the community is great too, once again I would like to thank all of you, and keep up the great content!πŸ‘πŸ˜Š

  4. What a awesome video. I love the in depth questions Andre asks. I know alot of interviewers wouldn't ask the questions he did. Like "Why didn't you just go 4G series?"

  5. Funny thing is … whatever the tons of incredible work & engineering behind this car , she will stil be called a rice car …

  6. I always pump the brakes before braking, always, does not matter what car im in. I do it also when i play on PlayStation. Strange, but i just cant get rid of it. Im too old.

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