How much to get 4A-GE Bluey Turbo ready? blu has ? pwr stnd

[Serkix]

Hi just wondering how much it would cost to get a 4A-GE out of a '86 FX-GT ready for a turbo? (I can get a very cheap turbo atm =P)
I spose I have to replace my headgasket? I just got my mate to put a new one in. lol.
How much power does the blue top have standard?
Thanks in advance.

[bridgeport]

88 kw standard compresion ratio is too high but a low boost set up like 4 psi intercooled you might get away with not having to use a deck plate

[Serkix]

Cheers mate.

[Serkix]

What is the standard compession ratio? Isn't it 9.5:1?

[EVLGTZ]

Std compression is not too high at all. Yeah its about 9.4 or 9.5 but is fine for a turbo setup IF set up properly. With adequate fueling it will be fine.

Better if can get aftermarket ecu (Link etc) though as much more tuneability than trying to use std bluetop ecu.

PM drifter4ag as his bluetop is the shiz, runs 14-15psi on std bluetop and has done so for quite a while now without trouble.

[Mr Revhead]

sheesh turbo on stock bluetop? be careful with the boost!! youd definitly wanna lower the rev limit!

[Stu-]

Funny that as drifter4ag see's 8000rpm quite often due to his shit gear changes!! Packs a fair wak of kw too, but I'll leave that up to him to devulge.

Also his isn't the only internally stock turbo 4age around thats developing decent power while still remaining reliable.

[Mr Revhead]

i know theres quite a few internally stock ones around..... but i think most of them are 4agzes! but hey if hes doing it good on him! id just be inclined to start with something else if my goal was large amounts of power!

[Drifter4ag]

bluetop fine
get a link and some 330cc injectors and you will be ok for many boosts and powers
stock bluetop makes plenty of power and map bluetop stock is 96kw FYI
Nearly all nissan turbo engines run cast pistons the same a bluetop with say 9.0:1 compression ratio etc .
bluetop is 9.4:1
on the racetrack my engine stays more or less around 8500rpm on 15psi boost doing snakeys down the back straight of pukekohe ... bluetop can take anything you can throw at it as long as it knows what its getting.
Last dyno 176kw@15psi at wheels ..
4agze of course will last longer because it has forged pistons but doesnt rev as well and doesnt make the same power per boost due to compression ratios and internal weights.
Dont listen to people who no nothings .. tried and tested is the only way. oh and dont use small turbos thay are plenty boring and also bluetop really comes alive over 12psi

[Mr Revhead]

Dont listen to people who no nothings .. tried and tested is the only way

definitly tried and tested is the way to go. but i stand by my statement that if you can start with a 4agze, redtop 4age or silvertop. just change the pistons to ze ones and youve got steel crank and rods forged pistons and stronger block. also oil squirters on some models. all things that are definitly desirerable for a turbo some would say essential. also all these engines are later model so likely to be in better condition with less kays on them.

just how many kays has that bluetop turbo done with no probs?
im not saying its not an option and if you are getting those results then good on you. but in the long run it may be better to go with the stronger parts.

[gdsup]

as long as they are fueled and cooled fine them there is no problem with boost on them, avoid decompression plates at all cost, they wreak the squish area in your combustion chambers, requirering more fuel and boost to make less power, the only problem with the bluetop crank is the pulley wobble issue which has nothing to do with increased cyclinder pressure, i have never seen or heard of bluetop rod bending or snaping rod bolts, altho if i had coin i would replace with arp items, as i would on the gze anyway, the bluetop has great response and a willingness to rev unlike the gze etc and fwiw i pulled my gze out because it was smokey, put a bluetop in , even if i blow this bluetop up ill put another in over putting the gze back in there

[~SlideWays~]

oh and dont use small turbos thay are plenty boring and also bluetop really comes alive over 12psi

so what turbo are you using then? t25, t28 or something different?

[EVLGTZ]

oh and dont use small turbos thay are plenty boring and also bluetop really comes alive over 12psi

so what turbo are you using then? t25, t28 or something different?

well he said dont use a small turbo so that puts t25 and t28 outta the question hehe

[~SlideWays~]

oh and dont use small turbos thay are plenty boring and also bluetop really comes alive over 12psi

so what turbo are you using then? t25, t28 or something different?

well he said dont use a small turbo so that puts t25 and t28 outta the question hehe

so do you know what he's using? lol im already getting bored of the sc on my car and its only done about 1000k's

[Drifter4ag]

13500kms stock compression on 15psi boost. And more trackdays than youve had hot dinners

any t3 turbo is great on a 4age
im using a t3/4 hybrid and i get 15psi strong from 3500rpm

[SpeedFReekz]

I was thinking of turboing my old bluetop.
the only thing that was holding me back was the link computer or some aftermarket engine managment but i was just going to fuel it hard and add aquamist injection to cool things down a bit to be a lil bit safer

[nite b]

When you say 'old' bluetop, you mean still in good condition.
Just remember that if an engine is getting bit long in the tooth, maybe breathin a bit, boltin on a twirly aint gonna help it. Prob be the straw that breaks the camels back, if you know what I mean.
Link make a extra injector controller which works magic with bluetop ecu's. (called 'powerlink')
Have setup plenty bluetops with this combo and have proved very reliable.
Know of couple cars done bout 3 yrs ago still running no probs.
Like anything, full control is always preferable (full aftermarket ecu, etc)
Every setup is different and may have different requirements. As long as setup sensibly without cutting corners youll be fine.
Yes, a ZE will have better resistance to abuse. But choice will depend on whether you are after a reliable reasonable increase in power or a bulletproof ripsnorter.
Just dont expect 500hp@25psi on stock bluetop, ecu & inj's.
Keep realistic ideas in mind & sure will be satisfied

[bridgeport]

i wasnt saying it wasnt a good idea it just has to be set up properly
the guy at rotorlife had a 4age starlet turbo and he chewed up 4 engines because it leaned out defenitly if your running high boost get an aftermarket ecu

[ezy10s]

yeah but helmet is a special kinda person- he'll $&#$% anything up

[suberimakuri]

Same turbo as drifter4ag....... 17300kms on stock bluetop block. I'm making less power though. 150kW at wheels.

T25 will spool faster, and is perhaps a good way to get somewhat used to the extra power and extra lag if you're drifting/racing.

However, once you've had T25 power, but then change to T3 or bigger you'll wonder why you didn't go to that straight away.... fantastic power. More lag is generally manageble if you've learnt anything at all.

There's a lot of tricks to making any turbo motor stay together, and we've learnt alot, which is why our engines are still together for a long time.
I can think of specific reasons why our motors blew which would be a worry on many setups.