Internals Buildup

[jhenty]

This is a question for perhaps the experts or the few who have already done this. What internal parts(custom, aftermarket, performance) provide the greatest increases in hp and torque. I plan on starting my internal buildup this winter and am also wondering what I should upgrade and possibly in what order if it matters. I am already looking into cams. Thanks for anyone who can help.

-Justin

[Hsakuragi]

all you need is this














$



supercharger

[DatSRBoi]

all you need is this

$

supercharger

True but for even a supercharger... It will take you only so far that the stock engine can handle.....

[dominoSLEV6]

Do this...

Get a supercharger.
Make sure all six of your cylinders are running well (no misfirings, proper compression, no cracked pistons)
Get Jims fuel kit upgrade, and torque rod
Upgrade your fuel pump
Upgrade your injectors
Get a 5.5 PSI pulley from pulleyboys
Get an Injen SRI with RJs cold air extension
Get a JoeB/trd4life TT MAF kit
Get Superpro polyurethane engine mounts
Get new spark plugs and wires
Get yourself and exhaust system going

And that should be a good start, and THEN worry about forged pistons and connecting rods, porting and polishing, engine boring, valves/valve springs, and cams.

In my opinion at least.

I know you already have some mods, so you might already have some of this covered, but I think that's the best way to go about it.

Then again you already know the best route... get some advice from Joe, Greg, Rizal, or anyone else on here who may have abuilt motor.

-chris

EDIT: When you finally do decide to build your motor, it may not be a bad idea to contact Arietta Motorsport if you don't live too far away. They could do better for your Solara than probably any other custom shop in the country.

[Fletch]

1mzfe shortblocks can be had for cheap because of all the mass production. Don't know what your plan is, but you could always drive the car with the current engine while you beef up a different block and swap them when it's done...

[JoeB]

That's a difficult question to answer the way you asked it. IMO, you always start with a target and build to that. You have to decide what is your goal for the car/engine and build to meet that target. The higher the target, the higher the dollars exponentially.

To start with there aren't a lot of internals that are going to significantly increase power unless you're talking about increasing bore and stroke. Building the internals are done to support your intended power target. Everything has to go together too. You can't just do 1 thing and expect max performance. For example head work can offer greeat power gains however, it should be done to suit the needs of your intended design. Cams are the same, they should be sized to the flow target.

Of course I could be way off track and you might not be talking about the internals at all, you might be talking about bolt-ons? Whichever though, if you tell us what you are working towards, I'd be happy to make recommendations. It is unrealistic to try to say, "I just want max power". That doesn't mean anything ask any builder and the first place they will start is by asking what is you hp target. -JoeB

[jhenty]

i plan on supercharging or turbocharging in the future and I know a lot of guys here have run into problems with the weak stock internals. Mainly I'm asking what parts are weak and should be replaced or upgraded so that I don't run into major problems after I boost. I kinda want to get that out of the way first before I break anything and have to spend even more money.

[returnofthedack]

also depends on what kind of power you want like they are saying.

do you want a supercharger with stock boost?
or do you want 13 psi like joe?

do you want a small turbo
or do you want a mutant snale like rizal?

if you are gonna ask open ended questions or have comments your going to recieve open ended back, but of course you have all the right people here to give you enough knowledge.

what people have already said is basically what to do and im on the same thinking route myself.

[JoeB]

i plan on supercharging or turbocharging in the future and I know a lot of guys here have run into problems with the weak stock internals. Mainly I'm asking what parts are weak and should be replaced or upgraded so that I don't run into major problems after I boost. I kinda want to get that out of the way first before I break anything and have to spend even more money.

If you are going to stick with the TRD Supercharger as a power adder, you will be safe with replacing the pistons with forged. They are really the weak link. They are some really flimsy cast junk! The rods seem ok but I personally wouldn't trust them past about 350-400fwhp. While you're in there it only makes sense to replace the rod bolts with good ones from ARP and the other normal stuff. The short answer is pistons. Trust me that you will not be able to use smaller than a 2.2" sc pulley reliably. That is 9psi nominal and registers 13psi. Any smaller and it is all heat and you take a big risk of damaging the sc.

If you need a good shop to build your motor, I highly recommend Arrieta Motorsport. Carlos Jr there has built 3 of our engines and cares for them like they were his own. It's a family owned and operated business and they take a lot of pride in their work and back it up. Carlos has more experience with our engine than anyone. http://www.arrietamotorsport.com/

For custom forged pistons, rods, cams and head work, call Brian Stoid of Stoid Racing. He has done some very high profile work in the racing community building cars with over 800whp that I know of, maybe more. He also worked on the MR2 with a 1MZ-FE that won the SCCC this year.
http://www.stoidracing.com/index.html

Now we've only talked about your engine, what about tranny? Are you auto or manual? If manual, you'll DEFINITELY be needing a clutch! If you're auto, I STRONGLY recommend talking to John at IPT Performance Transmissions. He has done more with our transmission than anyone and very good with race transmissions. He stands behind his work, I can't say enough good things about the business I've done with him and the professionalism of the company. http://www.importperformancetrans.com/ . I hope that helps, feel free to ask if you have more detailed questions. -JoeB[/url]

[~Spadwaller~]

More boost equals more gas consumtion JoeB?

[jhenty]

thanks alot joeb thats exactly what I was looking for. I have a manual tranny with a performance clutch and lightened flywheel already. This information should help me out in the near future.

[Sentinel]

I believe that when building a fast car you have to start from the bottom: Ie: you can slap a S/C on in a day... but to do cams or other, you'd have to take the S/C off.

I would do brakes and Tranny first (if auto anyway... I hear the manual does fine with more HP, but a clutch might be in order) Then improve handling... or vice versa (I did handling, but not brakes) no $$

And then do everything that the S/C would need: S-AFC, injectors & whatever... Also: you can get cams for S/C'd engines that have a bit of a different profile (At least for engines with aftermarket support)