View Full Version : Making an engine "bulletproof"
dracon
08-08-2002, 10:34 AM
Hi Paul and/or Jacob - have a great life knowing that you are the bigger and better person!
uiuc240
08-08-2002, 12:00 PM
</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (dracon @ Aug. 08 2002,11:34)</td></tr><tr><td id="QUOTE">Okay, if I want to make a red top "bulletproof," what all do I need to do? I am planning on doing the standard GReddy rods and springs...
BUT... If I want to do it right, should I replace the pistons? a new cam? head work? anything else? Basically, what is "everything" I should do to make it like new - well... better than new. In the future I know I will want to put a different turbo on it, maybe a T78. Will I need to do any head work for this?
Thanks!</td></tr></table><span id='postcolor'>
first off...no matter how well you build and engine, you can still blow it up with relative ease. not enough fuel is the most basic method.
i think you need to do a little more homework before asking a question like this. and what do you mean by "standard Greddy rods and springs"<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'> it's NOT very common for people to build their SRs here in the US. we're still new to the whole SR scene.
replace pistons? sure if you want to run really high boost
new cams? yes. or that ridiculous T78 will never spool
head work? tons. port matching, lash killer kit, valve job, springs, etc.
are you serious about putting a T78 on? that's a BIG turbo for a freaking 2JZ-GTE...on an SR, you probably wouldn't hit boost until about 6 grand. geee...what a great powerband that would be. totally worthless.
so, do a search. you will find your answers there.
Eric
240 2NR
08-08-2002, 12:41 PM
I'd start with a stock SR and build from there. Get it running right and be amazed at how much faster it is. 210hp is a big jump from 155, and a pretty big $$$ investment to begin with. 300hp is easy on stock internals and for me that would be scary fast. Build the brakes and the suspension and if you still want a dyno queen THEN go to town with a big turbo and built internals.
dracon
08-08-2002, 03:11 PM
Hi Paul and/or Jacob - have a great life knowing that you are the bigger and better person!
18psiAWD
08-08-2002, 03:27 PM
Try getting a fuel pump, regulator and then maybe turning up your boost to around 15psi and that would be pretty close (crank hp)
dracon
08-08-2002, 03:33 PM
Hi Paul and/or Jacob - have a great life knowing that you are the bigger and better person!
uiuc240
08-08-2002, 03:37 PM
</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (dracon @ Aug. 08 2002,4:11)</td></tr><tr><td id="QUOTE">Okay, so other than the standard boost controler at 14psi, headers, exhaust (full turbo back), and larger Intercooler, what else should I do to get it up to 300hp?? or would that do it?</td></tr></table><span id='postcolor'>
headers? you mean manifold? you don't really need to change that out at this power level. change that when you get a turbo that doesn't have a T2* flange.
to hit 300 at the crank:
boost controller (~15psi), fuel pump, FMIC, 3" exhaust, bigger MAFS (Z32), bigger injectors (to be safe), ECU tune.
some will say you can do it for less, but i won't be caught driving their car (blowing it up). this will get you reliable power.
Eric
240 2NR
08-08-2002, 03:38 PM
Well, in a turbo car you would have a down pipe after the turbo to the cat and then a cat back exhaust.
Um, high flow cat, more boost, maybe a bigger turbo, probably better fuel management, big intercooler, bigger radiator, etc.
A search should find you plenty of info on the SR. It only comes up about 5 times a day.
boosteds14
08-09-2002, 09:28 AM
just to add:---------
NO ENGINE IS BULLET PROOF.
i thought mine was <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sad.gif" border="0" valign="absmiddle" alt=':('> <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/sad.gif" border="0" valign="absmiddle" alt=':('>
uiuc240
08-09-2002, 09:43 AM
yeah, dude. I saw your post on FA. Have you sourced the noise yet? Shite. I hope my SR holds together for about another 2 years so I can get some debts paid and start really modding it.
Eric
srJOEYdet
08-09-2002, 04:48 PM
damn dude. I havent asked any questions on any forum about the sr, and I know way more than you about it than you.( I know I am being a prick) And I did all my research before the search was working.
Regulator = fuel pressure regulator. if you get 550 injectors, and a bigger pump, your regulator is still going to put 330(ish) ccs a min to your 550's. You can run 300 hp out of an SR easily with just mild bolt ons. THe only thing you are fighting is detonation. (you have to know what detonation is)
The way to combat that is to keep a cool intake charge, and have a good A/F mixture.
Intake
BIG FMIC
Full catback, with a good downpipe
550 Injectors
fuel Pump
Regulator
Boost controller
A/F gauge
Boost gauge
Oil pressure gauge
ECU tune
If you really wanna be reliabl, get an HKS AFR
One other funny thing. Not to bash anyone.. How do you put headers on a single manifold car. Its a header! :!:
EDIT: spelling
dracon
08-09-2002, 05:03 PM
Hi Paul and Jacob - have a great life knowing that you have lived your life well enough to earn your reward.
dracon
08-09-2002, 05:10 PM
Hi Paul and Jacob - have a great life knowing that you have lived your life well enough to earn your reward.
srJOEYdet
08-10-2002, 12:55 AM
</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (dracon @ Aug. 09 2002,4:03)</td></tr><tr><td id="QUOTE">"I know way more than you about it than you." - srJOEYdet
Right, that's some good english you have buddy. Ya might try a little edit yourself before you leave your own comment.
By the way - Those are some killer glasses you've got there. Where did you find them? - the 80's??? You know the only thing that could make them any cooler??? A nice big crack in the lens after I beat your ass down. But of course with you illiterate English, that probably coincides with your math skills, you must have saw 1980 and didn’t know the year make of those glasses...</td></tr></table><span id='postcolor'>
Well at first I thought I wasn't going to dignify your response with one of my own. I excuse myself for the mistake I made in my typing. If I were you I would reconsider verbally harassing me. You know nothing about me, and can therefore not make an effective social attack. I am calling it that because you said it in a thread, not in a PM.
While we are on the topic of grammatical English, lets evaluate your post. Shall we?
Ya? Try “you”
Extra question marks are only useful in Spanish, and start off inquisitive sentences, 3 are unnecessary.
“with you illiterate English” That’s a grammar no-no. Should have been “your illiteracy in english”
Don’t you know that a comma always follows a date unless it is followed by another form of punctuation? You neglected that one.
“you must have saw 1980 and didn’t know the year make of those glasses...”
Didn’t know the year those glasses were made? I am unsure of the point you were trying to reach, so I am unable to correct it.
And saw is past tense self, “seen” would be past tense for someone else.
Now do you realize how dumb this looks? Why play teacher? Just shut up and play student. Heed knowledge of all the wise people here you requested and don’t talk back.
For the record I happen to like my sunglasses, which are not meant to be taken seriously. Loosen up. And my math skills are more than adequate for a junior in high school. I will be taking advanced pre calculus this coming year year. Along with accelerated physics.
I am curious. How old are you? (I don’t mean this in an insulting manner)
*For the record, I do not consider myself one of the wise people of the board. I learn something every day I am here.
Joey
</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (srJOEYdet @ Aug. 09 2002,03:55)</td></tr><tr><td id="QUOTE">Now do you realize how dumb this looks?</td></tr></table><span id='postcolor'>
IMO, you are both looking pretty silly about now <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'>
BTW, the sunglasses are pretty cool <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'>
dracon
08-10-2002, 01:37 PM
Hi Paul and/or Jacob - have a great life knowing that you are the bigger and better person!
srJOEYdet
08-10-2002, 11:01 PM
Yeah. maybe we got a lil' carried away. But at least nobody lost an eye, right? Thanks DSC.
What did you think my response was going to be? Some thing along the lines of: "hey i spel reel good! And if any1 is gonna get there jaw slamed around its 'gonna b U!!!!"
Also now that I think about it, my first responce was a little abraisive. I could have delivered my opinion in a much more informative, less "you stupid newb" sort of manner.
Joey
Kreator
08-10-2002, 11:36 PM
well, since you people are postwhoring, i'll join ya...
Now to the back to the question. Everything uiuc240 said. Plus i'd say the crankshaft too.... adn although sr is a new engine to US (although questionable... very questionable), the definately got more parts here. like there are no intake manifolds for KA (that i found yet, except sheet metal that runs a crazy high cost of $1000), and i don't know if they make cranks for sr, but i haven't seen any for ka....
akira0
08-11-2002, 08:34 AM
T78 Turbo on an SR? Wow man, simply wow. As it was pointed out earlier you will not have an insane amount of boost because the turbo is bigger. Remeber that the exhaust gasses are what spins the thing. On an RB engine, or the 2J Toyota engine, it might be enough to spool that bad boy, but still not till later in the powerband. Also keep in mind that you will not really be able to go past 17psi on pump gas with a 92+ octane.
Recommendation? The TD-06 would be a better idea. It will spool faster than a t78 would, and not really require any additional assistance to get it spinning. It would still be a bit laggy, but it would be MUCH less than a T78 would be.
If you are completely set to having a T78, then save about another 2 grand for a minimum 100HP shot of NOS to get it spooling throughout the powerband, and a good programmable ECU to control it all. Haltech's are good for installs such as this.
If you are going for full drag, then yeah, NOS, and a T78 should do you just fine. If it is a daily driver, take a look moreso at a t3/t04B hybrid, or a TD-06 if you want a better powerband. Trust me, it is not fun to have an oversized turbo, stomp on the gas, and it not got anywhere till the RPM is around 5-6k. Once it hits that range, you will fly like a mofugga, but then, you have to shift, thus begins the endless cycle of turbo lag <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>.
Other than that, all the other recommendations I see in here are worth picking up a pen and paper for to do some reasearch on.
Just my 0.02.
wherezmytofu
08-12-2002, 02:11 AM
the ad part is that there r like 2 replies that actually adress the original question.....
-the term bulletproof refers 2 the bottem block.
list of things 2 do:
-forges pistons....the compression of the pistons r based depending if u want 2 dd the car and what psi u want 2 set that turbo to
-forges connection rods/lighter wrist pins
-blanced crank
-all more race alloy bearings....also u might want 2 change all the sutds 2 apr bolts
- get a block gerdel for added support...im sorry i dunno who makes one...but im sure sum1 does...
*-* also if u want 2 run the cray booste i'd advice 2 get it resleeved with iron ductil sleeves...of course there r a bunch for stuff.. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cool.gif" border="0" valign="absmiddle" alt=':cool:'>
uuninja
08-12-2002, 05:25 AM
As was previously stated no motor is bullet proof. So I don't think that perusing that is a worthwhile goal in it's self. A better question would be. I want to make X horse power with an SR, how can I do that? SR's have proved reliably to ~400 HP with proper tuning and maintenance. Are you looking for more?
I would guess that you are probably pretty new to the whole turbo car thing (no worries everyone has to start some where). The t78 is a very large turbo and not practical for most 4 cylinder applications. As others mentioned the power band will be very peaky, and will need assistance to spool.
Ask your self, what kind of car you want to build? Will it be a all out 1320 race car, something sporty to impress your friends on weekends, a daily driver, a autox champ, a GT class race car(bit of a stretch)? Unless you have a clear goal of what you want out of your car, it will be hard for us to give you good advice.
Some outside reading you may want to pick up, Corky Bell's Maximum Boost. Considered the hobbyist's bible on turbo charging. That will give you a good introduction to the facts.
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