sweet oldy but a goody

 

Well.... I would love to hang out, but I really can't run anyone, I've got bad nees. Since my (err... Linzee's) MKIV is also down I take the civic and get schooled by all the new Supra owners... I loose about $100 a race in that thing... any "knew" rice killers? buwahahaha!!!!

Seriously... Linzee and I are starting to get part of our lives back now that the baby is almost 6 months. We will start attending some meets again, so call us since we don't monitor the forums on a regular basis.

In case you don't know, we pulled the motor. The 2835's are coming off. A built motor and mild head are going in with a 67 for the street and a 76 or 77 for the poopra meets and ricer races against the snglcam. Should be done mid feb assuming all parts get here on promised by date.

Cheers.

 

Why get rid of 2835s? Seems like they would be a nice middle ground between a 67 and 77, not to mention looking nicer and the benefits of twins.

 

Sounds like the voice of someone who has never worked on a car with the twins on... you see, I've learned what happens to mechanics in hell, they don't go to the furnace of fire... they are put on an assembly line to work on supra's with the 2835's mounted. IT SUCKS @$$!!!
We installed them for the bling factor, but screw it... I'm done with them.

Middle ground?.... I don't do middle ground. Balls to the wall here. An hour hour and a half to switch turbos anytime I want... that's my new twin set up

and um... benefits? what benefits?

 

^^^LOL @ middle ground

 

anybody know who owns the RSP color supra with the silver'ish stripe?

 

Well a 67 from those would be a step down in power, wouldn't it? As for benefits, you'll get quicker spool and response compared to a similar-power single (apples to apples, non-DBB), as well as better heat dispersement.

 

yes a 67 would be a step down. As for spool, a 71 would give better spool and same power. Apples to apples, the 2835's are DBB.

Heat dispersement is an argument I don't know about. I have not have engine bay temp problems as of yet (that I know of) but then again I coat any and all hot pipes...

The real issue is I can't bring myself to work on the car with the twins on.

Cheers,

 

My mistake, I didn't think the 2835s were DBB. Heat dispersement doesn't really have an effect on engine bay temps, but it's more like (speaking very theoretically, numbers are way off) say you have 1000 degrees going through your single turbine, there's gonna be a good bit of that spreading to the compressor, and heating up the intake air. You now have, let's say half that temp, 500 degree air headed to the IC. Now on the same engine, you do twins, you have two turbines to spread the heat amongst, so each turbine is getting 500 degrees, and like I said, the compressed air is heated to half of that, so you now have two compressors putting out 250 degree air, which combine to be a single 250 degree air charge entering the IC.

Reminder, those were just explanatory numbers, the actual results are going to be significantly less noticeable, I'm just one of those obsessive perfectionist geeks that's into all that efficiency such-'n-such. There's also the fact that the turbos are each exposed to less heat, extending their lifetime.
Another note is (even less noticeable than the heat dispersemnt factor) the fact that it's easier to move two smaller objects than a single one double the size of one...if that makes sense. Due to minute friction, air resistance, gravitational laws, etc., it's easier for a 5lb force to move a 1kg block than it is for a 500 lb force to move a 100kg block. Comparitively, it's why ants can lift 100x their body weight and we can't. [/tangent]

Get the 71. Plenty of show-stopper, big power Supras out there with single turbos!

 

gotcha... Thanks for taking the time to explain.. We've ordered both turbos.. a 67 and a 76... we'll just have to take an hour to change out turbos when we want to be "fast"