4afe performance cams!

[Beemik]

Im prob gettin some cams ground up and i was wantin to know if any you fellas were wantin some done up for you. the current stock specs are

192 @ .05" w/.313" lift int
193 @ .05" w/.313" lift exh

I lookin to get specs as follows

adv duration 268 w/.313" lift int(aprox. 218 dur.)
adv duration 272 w/.313" lift exh(aprox. 222 dur.)

these are the same specs used by a former racer in South Africa who used to race 4afe engines. the car shoul have a slight idle change but not too noticable. these are just aprox. i asked the machine shop to give me their best opinion on what would suit a 7200rpm redline while increasing duration and maintaining lift. i just got off the phone with them and ill post back with what they say(different lift, duration, cost). i can provide a few sets of cams if you guys don't want to take yours out and wait for grind and shipping a few week im sure. anyway just let me know im gettin it done nomatter

[REN69]

You know that at anything over 264 you will most likely need to upgrade your ECU to a standalone, what else did this "racer" dude have on his car other than cams? chances are if he's racing, cams is not the only thing in his mix.

[Beemik]

he chips it and reworks ecu. these will run on stock ecu with tuning. porting the head with these cams, a high flow exhaust and an intake is what he does for people using their stock but chiped and tuned ecu. adding the bored tb is when the stock ecu require a piggy back to over rid air fuel mixture and custom map. adding turbo requires stand alone ecu new injectors and proper percision tuning which doesn't come cheap.

[Beemik]

oh

[Beemik]

oh by the way! this "Racer"

[Beemik]

his name is Dave Repsold i have his phone number if you would like to call him yourself and if not just google him!!

[Flashmn]

I havent heard of piggyback ECU's for corollas. But a piggyback wont address the fact that when you have alot of overlap, you'll lose idle on MAP vehicles.

[REN69]

I'm not a 4AF/4AFE expert, but I'm sure Flashmn will have a lot to say on this topic.

[Beemik]

flashman
right! new chip and remap! good togo! this guy has done something like 400 cars this way. these are the engines he had to race for awhile. he knows! see over in South Africa there are alot of 4afe engines same with Europe. There are tuners in S.A. and Eur. that are very familiar with these engines. Here in N.A. there is soooo much more muscle out there who could be bothered with a stock 105hp engine with 22.5 deg. ports. Right or wrong? If you google "240hp 4afe australia" you will find an article about a guy who builds his own race cars(formula 3 or something like that) and is using a highly moded 4afe. A fella in Indonesia has pulled of a 12.1:1 compression using 5th gen pistons. With a bored tb, ported head and new greedy ecu he has managed 15.24 1/4 and top speed (not during 1/4 run) of 230km/h.
And piggy back. I have forgoten the name of an aftermarket computer im investigating but when i remember ill post. if your not going to get the car precision tuned ther is no point on tuning at all! Retuning a stock car in most cases produces between 5-15% better performance. Now imagine if you port a head, throw in new cams, boar tb and top off with a turbo..., the gains from a proper tune alone 'could' be 25% over stock. Alot of aftermarket computer arnt compatible with certain cars because of wiring. If you make the app to get installed they will do it then tune!
But all that work does cost money so until i have the $1500-$3000 to get the computer, intall and tune ill go with what has been tested a trued.

[Flashmn]

If you google "240hp 4afe australia" you will find an article about a guy who builds his own race cars(formula 3 or something like that) and is using a highly moded 4afe.

Yeah billzilla.

A fella in Indonesia has pulled of a 12.1:1 compression using 5th gen pistons. With a bored tb, ported head and new greedy ecu he has managed 15.24 1/4 and top speed (not during 1/4 run) of 230km/h.

Probably, but you'd have to use race gas to run that, with that compression, its very susceptible to damage.

you wont get 5-15% more performance with just an ECU, few good standalones that are VERY affordable, are the megasquirt (which I'm running) and VEMS ecu. Then few others that are little pricier, are DTA and Haltech and the local Hestec (finnish made), KMS ecu is also good.

ow imagine if you port a head, throw in new cams, boar tb and top off with a turbo..., the gains from a proper tune alone 'could' be 25% over stock.

Just throwing a list of mods isnt gonna get you anywhere, stock cams work great with a turbo, but getting power from them N/A isnt gonna happen as they are emissions spec cams.

[REN69]

Originally Posted by Beemik

A fella in Indonesia has pulled of a 12.1:1 compression using 5th gen pistons. With a bored tb, ported head and new greedy ecu he has managed 15.24 1/4 and top speed (not during 1/4 run) of 230km/h.

That's it! not worth it IMO.

[Flashmn]

not for a 15sec qt mile.

Besides its easy to degrade perfomance if you fuck up the porting.

[TRDwasiq]

basically u sayin that if i do that to my 95 corolla is it worth it

[Flashmn]

do what, port and polish?

Someone who knows what he's doing, yeah, I might. I'm working on one 4A-F head, gonna have some minor porting, and some other cool stuff, such as way bigger valves.

[Beemik]

port and polish is well worth it average across the board increase is about 5-9% air flow that is about 5-9hp on otherwise stock engine.100hp
stock ecu's are programmed for milage. and average increase of say 6.5hp on a 100hp engine reprogramed for performance isnt out of the question. and i belive he is using 94octane although not sure?? all he said he wanted out of the new pistons was the torque.
Im sorry i didnt mean new OE cams I ment new performance cams
flashmn you know that by adding WAY bigger valves you could loose alot of air flow by creating turbulance and in turn loose alot of performance right? unless you mean way bigger exh valves which is never a bad idea.