My Honda Accord Type R Big Turbo

[JayK12]

Current power graph, im sure it will change towards summer next year :P

[JayK12]

omg omg omg just took the ATR for a rip.........omg hahaha foooking insane scary crazy.......!!! hahaha!!

thats how i feel at the mo.

The old NGK Iridium's had died, after may cold starts, mapping etc i came to the conlusion they are faked! So i put some cheap halford / champion plugs in and it started first time!! Today i put some NGK R Plat 7's of a scooby in so i could boost it.

I sorted some wiring inside and just moved parts out of the boot and me and my cousin went out........

The car is a totally different animal now to drive. Under boost she potters around like a normal ATR. The clutch is now a 100% better, and she no longer cuts out on rolling idle, starts first time etc. All niggles seem sorted.

The heat wrap and turbo blanket has worked really well and made a big difference. I will be getting the bonnet vent on and grille cut out asap. Also where the turbo is i need the bonnet rolled alittle.

Errm rear arms / ur arb on this week.

Going to a place to get a intake pipe made so i can mount the HKS mushroom on.


Anyway, what a machine i dont usually get scared but 4th gear is so strong and the constant pull just makes you lift off, you feel like any minute now your going into warp speed.

Crazy crazy crazy car.

And the noise's you just cant explain!!

Im still jumping around!!

[JayK12]

stuart-b said:

britsportscars said:

Holy st!

That thing's going to be a monster! I'm liking the standard look of it too, should surprise quite a few other cars!!

Might be a noobish question but when you add a Turbo to a VTEC motor, do you need to alter the VTEC system in any way or does it just continue working as normal? I suppose when the VTEC does kick in at 6000 (or whatever) it would be a much bigger kick because of the Turbo?

I remember reading a while back about problems with turbo's and vtec (may be totally wrong here), but some builders even disabled and changed components..

Let me dig a bit...

I found this

"In a low pressure turbo system, the VTEC cam profiles are used to maintain the same torque curve shape as a N/A VTEC engine, only difference is the torque curve is higher. In a high pressure turbo system, the VTEC system is disabled because the high lift cam at high rpms do not work well with high boost. What happens is the valves are still open during compression stroke, so the boosted mixture escapes before the valves close, therefore robbing you of power at high rpms. Since the low rpm cam profile doesn't exhibit this behavior, VTEC is disabled to use the low rpm profile across the entire powerband. Of course, the proper scenario would be a custom ground cam for low rpm and high rpm turbo operation, with the VTEC system intact, to maximize power across the entire power band."

"On the Porsche 968 engine (a project I was doing research on recently), the high lift cam profile on the Variocam system (same as VTEC, 2 stage) has to be disabled, otherwise the torque curve drops harsh at higher rpm's. This effect starts happening after around 12psi of pressure."

This may all be complete crap, but I think there is some basis here, and I read about it a long time ago.

Nope.....it works fine. My VTEC comes in at 4000rpm. The car is just mental. VTEC at 4000 (turbo is spooling) Turbo comes in and all hell breaks loose. Im using stock Accord Type R Camshafts, there great.

I cant believe that 475hp is so scary.......my mate was right...VTEC+Turbo = one fast insane crazy machine!!

[JayK12]

Will get some this weekend Sir.

[JayK12]

Here is a video!!

80mph off boost in 4th to flat out 5th gear. Didnt think it would be possible on my mates private land but it gets there so fast you dont need miles like i previously would have!!

Combined weight of people in the car was 380kg!!

Still pulls like a train and only at 1.1bar..........this car has some serious potential

http://www.youtube.com/watch?v=ZHcSeTwcX24

[JayK12]

I know what they are and why there Martin, and mainly because ive changed everything

I need to calculate what 5th gear at full revs works out at, as the speedo was well off the clock.

[JayK12]

The ATR does 150mph standard even if it takes a long time to get there.

Suspension has been upgraded with custom spring rates, my brakes are 6 pot 330mm's with huge stopping power.

Alot of Honda parts are extremely over engineered. We've ran standard drive shafts in 600hp Honda's. The S2000 engine can make 800hp on standard internals.

Ive checked the components on the car, and everything is in good order.

Just like doing 180mph in my EVO.

The car is perfectly safe.

Edited by JayK12 on Friday 31st December 13:12

[JayK12]

Ive worked out that it hit around 175mph. But thats it im out of gearing and revs. Could do with a longer 5th gear.

omgus ... hehe so worth the year and 4 months of build.....now i will fettle with it and leave it rough and ready as my weekend toy....ready to much on supercars nom nom nom lol.

[JayK12]

Im not sure if ive lost the plot or just got a small screw slightly loose.

Im doing a few bits to the car this weekend, and have been in touch with Radtech with regards to making me larger capacity rad as in depth not length or width.

Ive also been looking at other H series gearbox ratios and final drives in tandem with my rev limit. If found a H series gearbox with my rev limit of 8800rpm will be geared to 199mph, but i can increase my rpm limit to 9000 no problem and the gearing will work out at 204mph.

I am trying to get hold of one of these boxes but it might be difficult, the others are geared too long and will hamper acceleration.

Until them i will get abit more power and continue to fettle. Once VMAX dates are released i will get the gearbox in and give it ago.

Not much i can do with regards to aero, i dont want to change the car much with regards to stick on or taking off aero bits.

Will have to get the power right, tyres, weight out, gearbox, half cage incase it goess wrong, and then give it ago i guess!!

Edited by JayK12 on Thursday 6th January 12:55

[JayK12]

rallycross said:

JayK12 said:

, half cage incase it goess wrong, and then give it ago i guess!!

You need to talk to Mad Rod for advice on what to do if you are serious about doing it he has the experience in doing these mad 200 mph runs (in a 4 door cossie Sierra).

I'm not sure a half cage will be much help to you at those speeds, a parachute and an ejector seat might be more use!

Oh good point, i remember reading his thread on here i think it was a while ago. Might try and hunt it down.

Its very stable at 173mph especially when coming off the power onto the brakes, main concern is weight shift. Im not going to go crazy and say im going to get 200mph, im going to do a few bits that i think will help get there or close to that, and then give it ago, if i dont hit it, no problem. Be nice to see what i can get.

Half cage so surrounding the driver, race seat and harnesses, and some huge balls. lol.

[JayK12]

RobCrezz said:

Very impressive so far. Like where this is going!

Ta Rob.

[JayK12]

Janosh said:

Wow - have been watching this build with interest, and always expected a pretty fast car at the end of it, but 200mph+

Good luck mate - I'll be reading every update!

Thanks dude!

I dont know if i'll hit 200mph but i'll give it a wee try.

Be something if a Standard looking ATR hit 200mph lol.

[JayK12]

omgus said:

JayK12 said:

Thanks dude!

I dont know if i'll hit 200mph but i'll give it a wee try.

Be something if a Standard looking ATR hit 200mph lol.

I love that every time you update this you have an even dafter idea.

Crack on, attempting to get close to 200mph in a standard looking ATR is a great plan.

Lol, my Dad said that yesterday when i told him what im going to do. hehe

[JayK12]

ALawson said:

I have seen 152 in a standard ATR on the limiter and they are pretty stable, good effort with the mods, what sort of expenditure are you looking at to create something like that.

I know a few people on accordr.org have failed with turboing the ATR so well done, its good to see it looking so close to stock!

Yeah mine at 173mph was very very stable, i came of the power carefuly but it was fine and onto the massive brakes to stop before i ran out of land. It didnt even twitch. So the suspension setup is really doing its job. It felt alot more stable than my EVO 9 did at a GPS 174mph.

Ive done most of it myself so nowhere near what a tuner would charge to build something like this.

[JayK12]

shalmaneser said:

I must admit i was skeptical, but it looks so smooth pulling to 170 odd, you've done a great job!

Thanks

[JayK12]

ALawson said:

JayK12 said:

ALawson said:

I have seen 152 in a standard ATR on the limiter and they are pretty stable, good effort with the mods, what sort of expenditure are you looking at to create something like that.

I know a few people on accordr.org have failed with turboing the ATR so well done, its good to see it looking so close to stock!

Yeah mine at 173mph was very very stable, i came of the power carefuly but it was fine and onto the massive brakes to stop before i ran out of land. It didnt even twitch. So the suspension setup is really doing its job. It felt alot more stable than my EVO 9 did at a GPS 174mph.

Ive done most of it myself so nowhere near what a tuner would charge to build something like this.

Not knowing your back ground but if you aren't a mechanic by trade or a mechanical engineer or similar then doing most of this yourseld is very impressive, I stop at clearning out the EGR valve!

No mechanic or engineer, working I.T Lol. Never gone this extreme with a car, had alot of Type Rs but only mild modifications, first time ive Turbo'd one. But this will be the last one too, hit 27 this year, need to grow up lmao.

However im Turbo'ing another Accord Type R at the mo, but its my cousins and we are only running a mild 280hp on standard engine, will be a really driveable car. And also doing an EG6 Civic with a EK9 forged engine

Jay

[JayK12]

ALawson said:

That is the sort of power I reckon that the ATR would handle nicely without being to undrivable, are you leaving the internals stock?

My rolled over 167k miles today and is still going strong.

We took out the ATR engine and put in a H22A engine, still a 2.2 but lower compression and you can get one with about 50,000 miles on the clock for £400. Used the ATR inlet camshaft and left the H22A exhaust cam in, adjustable cam gears so hoping to get the turbo spool up at around 1800-2000rpm, and hold boost to the standard rev limit. Lower VTEC abit of course.

Internals are staying stock for now as my cousin is on a budget, so setting up around 5psi. Everything else is ready for 380hp, so when he does decide to change the rods and pistons we do that then turn up the boost.

But with 280 it will be spot on with very little lag, vtec and be a quicker car

Honda's go on forever

[JayK12]

Update on mine:

The AEM ignition module gave up So the AA took the car back to Eurospec to get a replacement. Whist its there, ive asked them to do the few bits i was going to do, i know lazy but common its cold outside!!

Also ive asked them to fit an Inline Walbro fuel pump aswel, im hoping this gives me the flow to get around 1.5bar, which could be anywhere from 550 - 600hp.

See how it goes......time to get some sticker tyres!! lol.

Jay

[JayK12]

Well i hope you all didnt think i was finished there. Ive been abit lazy with ordering parts etc but the following has been done:

New Sump and Gasket
Rear Arms has been fitted
New AEM CD2I Ignition Module
New Alternator Belt
Walbro 250 Inline Fuel Pump Hardwired
Silicone 90 bend of Turbo
HKS Mushroom Filter
Remove all heatwrap, check over downpipe/manifold/screamer pipes. Re-heatwrap with better quality wrap for serious heat.

Anyways the car is currently at 505hp.

Hoping for more power over the forth coming week

[JayK12]

Or888t said:

Haha Awesome, your a mad man.
Love the fact that you hit 175 with your last spec, with 4 people in the car.
"Off da clock"! :P
Amazing...
Gearing for 200 and vmax planned aswell!

Hehe, probs my fav pic of them all



Hopefully a F22 box will do the trick, will have to test it on the dyno, but they can be had cheap so worth ago