SR20DET Swap Preperation

[matt0941]

I hope to soon be doing a redtop SR20DET swap into an S14A. As I will not be leaving the engine/car untouched once the swap is completed, I was wondering what should be done (or gotten out of the way) as long as the engine is still uninstalled. I have done a couple of searches but have not gotten the answers I am looking for. I plan on upgrading the turbo and would like to be putting down up towards 300hp once the engine is installed. So my question really is: what should I get taken care of before I put in the engine, so that I don't have to take the engine out again a month later (ie say for larger injectors)?

[lucky]

You don't have to take the engine out to install injectors, intake manifold, turbo....the only thing you would really need to take the engine out for is if you were putting pistons, rods, crankshaft, etc. in. You can even build the head without pulling the engine.

[SpeedRacer1]

Do the clutch too, makes life easier.

[matt0941]

Guess I was too used to other forums (Supras) that I thought it was a must to pull the engine in order to swap a turbo. But do you think that I should resleeve, new cams, etc. before swapping it in? What is else is very common for 300hp (+ or -) as far as engine work while the motor is out. I am hoping to get low to mid 13 times (of course I will be changing tires/suspension.

[lucky]

You don't have to pull the engine to do a turbo upgrade on a supra : )

edit: Doing the clutch before you put the engine in will make that alot easier...I wasn't thinking about that.

[SR20DET240]

Almost anything you do will be easier with the engine out. Heck its easier to change the plugs with the motor out because you dont have to bend over the front bumper! :pface

I would say do the clutch. Also if you are gonna do a high volume oil pan, best do it while its out. If you are going to make power via high boost, you will eventually need a head gasket. Not a bad idea to do it while its out. Its not that hard to do while the engine is in, its just more convenient. Anything else can really be done while in the car w/o too much trouble. Anything I'm missing?

[Redline240]

Well this probaly goes without saying but you can take care of a lot of things and just use them on the KA....like relocating the battery to the trunk, upgrade fuel pump, swap in a LSD, slap on a SAFC, gauges, etc......that's my plan anyway....

oh and there's no need to sleeve the block if all you want is 300rwhp.....maybe 400rwhp.....

[matt0941]

Hey lucky, i watched yer vids, awesome single BTW, but are u sure you dont have to take out the engine in order to upgrade the turbos. Because arent they barried in there, i am pretty sure you can't even see them on a stock TT.

[I H8 UR DSM]

um....the SR20det turbo is "buried" in there as much as anything else : ), and the motor doesnt have to be pulled to change the turbo : )

[lucky]

Hey lucky, i watched yer vids, awesome single BTW, but are u sure you dont have to take out the engine in order to upgrade the turbos. Because arent they barried in there, i am pretty sure you can't even see them on a stock TT.

That's what they make tools for You can actually take the entire twin turbo setup off without too much work.

[matt0941]

Well Lucky and "I H8 UR DSM", since I have read your other posts and value your opinions, what do you guys think that is more common (for a good reason) to the SR before the swap for low 13ish times. Resleeve + crankshaft +clutch? Thanks (and I didn't know that you could swap the entire turbo setup on a Supra w/o removing the engine, I just assumed since alot of the people I know did so)

[Daunttless]

I don't know of anyone who has resleeved a SR20 or done any crankwork for low 13 second times.

[lucky]

You should be able to get into the 13's without doing any internal motor work. You will probably need a better clutch to do so though.

[Redline240]

you can probaly get into the low 13's with the stock T25....

[harryhood]

"you can probaly get into the low 13's with the stock T25....

Ken at Enjuku Racing ran a 12.8 with the T25

[matt0941]

So there is not much to worry for damage to the engine concerning boost, with running high boost on the T25?

[namrak]

15psi for the T25 otherwise past efficiancy

[lucky]

As long as your A/F ratio and EGTs are good you should be fine.

[matt0941]

So there is not much chance in cracking the engine block or other damage to the internals with high boost on an SR as long as the air to fuel ratios are ok and exhaust temps. are fine?

[Redline240]

the block will handle a lot more than the T25 can dish out....i believe around 22psi and roughly 400rwhp....don't hold me to that, it's just what i've read.....

[matt0941]

So is it unheard of ruining a motor do to boosting high on a T25, because I would like to be safe, but if it is extremely rare that the stock motor would not be able to handle it, should I bother?

[lucky]

As long as your car is tuned properly, you shouldn't have any problems with the stock turbo.