so before i get flamed for not searching (which i do have my flame suit on just incase) i have searched and my questioned is :

why does everyone go with building a 2.3L stroker motor for the twinscroll gt4088R instead of building your 2.0L to rev to 10k. and making up the power there?

i mean the only thing i could see would be the turbo not making the power in the higher band, so that would make sense but, the gt42 obviously makes great power top end.

so before all the questions come out on what i want out of the car.. . .. . here is my story:

i have a evo 9 motor waiting to be built in the garage. . . . i also have the gt40r turbo waiting to go on the motor. . .and my purpose for the car would be a weekend warrio/fun ride. this wouldnt be my daily. . . . i would take it out on the wekends(and or whenever i really want to go fast) take to the track very rarely (both drag and road courses) and it would be my fun car.. . . . .

however i do want to keep my a/c and power steering as my radiator. . . im not looking to be the fastest evo on any track, just want to spank the **** out of pretty much anything else lol

ok i think that is it
any suggestions ?

oh yeah and i read the to stroke or not to stroke alread just fyi

 

nuffing???

 

IMHO, a GT40r or 42r stroked or not, is way overkill for someone like yourself. A 40R is not very street friendly and you would not really enjoy it. You'd be much happier with an HTA 35. Not to mention, companies like Buschur and big Al from Dynoflash got rid of their 42r's and switched to a 37 or something. They said it's very hard to even get the car down the track on a 42r. I don't mean to offend you, but I just think you'd be happier looking at other options. And by the way, a well tuned 35r with supporting mods will destroy almost anything on the street. It will still be fun to drive and you'll actually have some enjoyable powerband.

 

Man speaks the truth!

 

Im sure Jhonny will chime in soon given we due to tune his car in about 1 week, but im eager to finish two paralell projects one with a Kyoto built 2L 4088R (10500rpm) and one with Bushur 2,3L 4088R reving to about 8300 max. Both twin scroll with twin 44mm (one using Full Race kit and the other mine)

Personaly i feel a well sorted 35R on either will be more rewarding and deliver the results you want. The 40888 may end up spooling a little later than a singe scroll 35, but i have yet to see major additional power levels that make the extra lag worth the effort.

Im probably doing this for the R&D and no more. Not much more than a decent 35R!!!

Oh, and if you wont be doing track.....id advise against a 4088R for road especialy on a 2L. It will be too laggy and result in an on/off power delivery.

on a 2.3 we should know fairly soon. the 2L will take a little longer.

Adelin

 

i respectfully disagree. a properly built/tuned twinscroll 40R is VERY street friendly, and will obliterate a singlescroll 35R based setup.

a great person to ask for input is mark shead @ MADevelopments in the UK. He ran a 35R hta and a twinscroll 40R on the same engine

 

How did the powerbands compare?

Scorke

 

^ +1 on this... where is Mark..LOL

i should have some figures and input for you in about 2 weeks time.
turbo kit has arrived and i have all the components to start the build.

Like i said to Geoff, If i can hit peak torque at 4800rpm I will be over the moon.

 

So when are you going to prove that statement and send your TS 40r kit to David for testing on his RS?

 

Geoff doesnt need to send his kit anywhere to have it validated.

When is David going to send his fs635 to Full-Race for testing.... Your asking a ridiculous question.

Scorke

 

Also interested to see the 40r twinscroll powerband

 

Scorke, your response is nothing but dumb. Jeff does send his products to Dave for testing. Jeff doesnt have a brutally fast evo. And he doesnt sell much in the way of 4g63 go fast parts. Why on earth would dave send him one of his products for testing?

Jeff does wonderful things in the auto industry. But he spreads himself thin. He doesnt focus much attention or testing on any one particular engine or platform. Dave on the other hand is quite the opposite. He spends all his time and testing on one particular platform. And the results are amazing because of it. A smart person who wants to go fast would get best results by trying to imitate the leader. If I were to shop for a turbo kit for my evo I would take the advice of Bushur Racing 100 times over the advice of Full Race. Jeff makes a bold statement in saying his 40r kit would obliterate the performance of hta35/fs635. He would be over whelmed with sales of said kits if they actually outperformed . It seems to me he would actually be interested in proving such a claim. Why is it there are likely 1000+ evos running around on 35r kits and maybe a dozen (unheard of) 40r evos. Are we really that dumb in choosing the wrong setup?

 

well thanx for the inputs guys and the turbo is actually a 4094 some odd reason 88 was stuck in my head

im kinda wanting to go big. . . . like ive been in a 35r car and it is fast but i do want faster that is just me believe me there are plenty of cars round these parts that could destroy a 35r evo so i gots to step my game up

 

david already had our TS40R kit, and it didnt work for him.

 

First, its Geoff.

Second, Buschur for the longest time ran a Full-Race manifold on his own car.

Geoff and (full-race) puts parts on cars that are above and beyond anything buschur could produce.

Geoff focuses SOLELY on maximizing the performance out of turbocharged applications via better manufacturing techniques, high quality raw materials, and real engineering.

He tests on many platform, I don't care that the 4G63 is not his benchmark, as long as he can reproduce similar tests on other similar motors and they all translate to some degree depending on the particulars to the engine dynamics(dimensions and build).

Geoff's kits outperform all other kits on the market, the reason they don't sell hand over fist is because he doesnt get a couple different manufacturers to make parts for them and slap them together to make a kit, he ENGINEEERS every part that goes into the kit that he can possibly design and fabricate in house. The only way Full-Race would ever compete with Buschur on a large scale would be if they outsourced lots of there components or cut quality to compete in cost, Geoff wants to produce the best pieces he physically can, and that takes time and money.

People don't buy 40r's because they are expensive, require twin scroll manifolds, require two wastegates.......theres many reasons.

Scorke