300whp Jamaica style

sx_turbo

Lifer
550 cc rc injectors, emanage says we running at 80% duty cycle on full boost which is 26 psi for me, this equates to a very rich average afr of 10.8 : 1.

i dont know what the fuel pressure is as we dont waste money on aftermarket FPR's. stock one works just fine. we just buy a walbro 255 lph pump. stock fuel rail and all.

but me putting this here is a waste as no one is gonna belive anyway and quite frankly i dont care.

if you run the 550cc injectors at stock fuel pressure of 2.5bar you wont be getting 550cc out the injectors.

the 550cc are only rated at that with 3 bar of fuel pressure.
 

sx_turbo

Lifer
and then to say us brits havnt tried pushing the engines is silly, people have pushed and then paid the prices.

i remember distinctly one person ran a td04 on completrely stock engine with an emb/emu @ 1.4bar the tune was also on the safe side of things and his engine only lasted a couple of weeks before it bent a rod.

theres also various other cases,

now i'm not saying it cant be done, and i am willing to be proved wrong, but for how long will it last?

i know some people are saying there engines have lasted years at that boost, but how often are they used at there maximum and for how long are they used at this maximum.
 
if you run the 550cc injectors at stock fuel pressure of 2.5bar you wont be getting 550cc out the injectors.

the 550cc are only rated at that with 3 bar of fuel pressure.

hey ricky...the addition of the walbro fuel pump helps a little in raising the fuel pressure ....i'm not sure to what exactly,,,but high flow pumps do raise it a little
 

_GAZ_EP85_

Member +
i've ran 1.6 bar on a td04 and 1.7bar on atd05 all on a stock, them poxy little rods dont like it and bend like banana's:haha:
 

_GAZ_EP85_

Member +
dont matter what the tune like, them rods bent at that set boost,
i do no that no one in this country can tune tho, it's not like we have the best timeattack series in the world or nothing:haha:
 

350ep70gr

Member +
Dont dout it will make 300-400-500 whp
Dont dout hardcores knowledge aswell and effort going to this and knowledge sharing propose either..
But to me it is a very very poor built and nowhere close to basic enginearing proccess.
It is just poor on almost everything...and i will be surprised if this engine last a year without issues running LOW boost and safe map and standard timing.
Sory for the coment ,nothing personal...Just my opinion on things. A proper skimming and a piston installer would be wise..
Rep for the effort tho..

Chris
 

GaryGT

Member +
550 cc rc injectors, emanage says we running at 80% duty cycle on full boost which is 26 psi for me, this equates to a very rich average afr of 10.8 : 1.

i dont know what the fuel pressure is as we dont waste money on aftermarket FPR's. stock one works just fine. we just buy a walbro 255 lph pump. stock fuel rail and all.

but me putting this here is a waste as no one is gonna belive anyway and quite frankly i dont care.



Throw up ur dyno sheet mate!!
and what Turbo were u running to get 294 WHP on stock motor??
have to say loving ur manifold mate ;)
id say that thing wud love High Boost
:haha:
 
Spuddy ran 1.35bar ona td04 for a good while with no issue afaik, I think someone else on here is using that engine now with no issue either.
 

GP82

Member +
Hello Rory! How is the build coming along? Have you had any further progress with the management, i want to see this beast get tuned!

I see you will require upto 20 psi of airflow from the TD05H 16G to reach your target power of 300+whp, there will be alot of blow by gas passing the rings?

Will you not be makin' more breather's on the rocker cover to let the gasses out and ease the pressure buildup within the crankcase? What is the method used? Is it jus' a matter of drilling more holes on the rocker cover as i understand there is a few hp to be had there too!
 

350ep70gr

Member +
Hello Rory! How is the build coming along? Have you had any further progress with the management, i want to see this beast get tuned!

I see you will require upto 20 psi of airflow from the TD05H 16G to reach your target power of 300+whp, there will be alot of blow by gas passing the rings?

Will you not be makin' more breather's on the rocker cover to let the gasses out and ease the pressure buildup within the crankcase? What is the method used? Is it jus' a matter of drilling more holes on the rocker cover as i understand there is a few hp to be had there too!

This is easily curred by a thing like external (looks like) wich you weld on the mani and suchs the gasses from the crankcase..

Chris
 

gv1.3

Admin
Ive cleaned this thread yet again, can you stick to technical info and conversation in this thread and not snide remarks and general chat.
 
wat do you guys reckon you could get out of a forged 4e/5e???

about 400+whp and 10 - 11 sec down the 1/4 mile approximately speaking:cool:

there's the jamaican ep71 and then there's that tercel (from puerto rico)....both run consistent 10 sec passes...members can see them in the 1/4 mile section if u have not already seen them
 
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SWJ

Member
Can you explain what kind of timing curve you run on low octane gas? In the use we grip about 91 octane alot of us are switching to E 85, 105 octane. I had read something somewhere about dyno tuning on 87 octane to set a safe base map. No ping on 87, 91 octane would be a piece of cake.
In the v8 world they run 500 hp on 87 octane all the time, I was impressed. But in the US, 4 cylinder world when you talk about tuning on 87 people look at you like your nuts! And to be fair when my V8 friend said he was putting down 500 hp on 87 octane I thought he was crazy but he said he was tuned for it!

So what is it about low octane fuel that the rest of us are missing. PS I have one of those Euro Cars, 944 Turbo S, and I am tuning it for E 85 but I have a little Tercel and I love my light little, Terk! 4efte baby :)
 
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hardcoreep

Member +
it would have been more appreciated there and advice and know how would have been attained easier aswell.
As was said. Its to show the guys here how things are done on this side. In all honesty I'm not looking for validation. I'm just putting the information out there. Those that wish to believe or replicate will at least have a template to work from. I'm constantly reminded about this in two ways 1)people telling me that I'd never make any power on a CT9 and 2)people telling me my car could never handle as good as X,Y,Z. My friend in Japan made 169.7whp on his CT9 at 15psi on 102RON. A JAM Racing prepped car I saw made 172whp at the same boost level. I hit 144whp with more than enough overhead to get to another 10-15whp. At 144 the car was more than enough for my application. At 160, with my current suspension modifications it would become pretty much invincible on the road. So, there I stopped listing to the nay-sayers long time ago, and concentrated on the information that would help me achieve my goals.

Hello Rory! How is the build coming along? Have you had any further progress with the management, i want to see this beast get tuned!
The car was tested again on the stock ECU, and proved there was no technical issues with the wiring. Its the Microtech that's proving to be the problem. When you have a standalone for an unpopular car, you're starting from scratch, therefore it will take time to build a proper base map, which includes start-up data, etc.

But to me it is a very very poor built and nowhere close to basic enginearing proccess.
It is just poor on almost everything...and i will be surprised if this engine last a year without issues running LOW boost and safe map and standard timing.
I see nowhere its an improper build. It was a working, driving engine, used, removed and cleaned up according to the Toyota 5E manual and put back in. I've refreshed many engines to factory specs without issue. The problems happen when people try to do their "custom work" and screw up their cars then turn around and blame the engine. I saw no where in the Toyota manual I was using about skimming.

never seen standerd rods go over 250 without bending
I have seen the 5E-FHE rods do that.

Will you not be makin' more breather's on the rocker cover to let the gasses out and ease the pressure buildup within the crankcase? What is the method used? Is it jus' a matter of drilling more holes on the rocker cover as i understand there is a few hp to be had there too!
The engine already has a oil-air separator. It will be enough from my experience.

Well, if you guys messure HP the same way as those comboys in USA, then you will be very disipointed if you took the car to Europe and tryed dyno it here...
I will register my bias here for the USA dyno behaviour. Euro tuners tend to focus on flywheel hp, which is literally a made up figure unless you actually test hp at the flywheel.
 
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