Garret GT40 on a 2.3L

[ProjectTalon92]

I'm working on my project, and i'm at a debate! GT35R or GT40R. I'll be running a 2.3L and i'm sure this thing will be a beast. I'm sure that many people will shy me away from the GT40R and GT35R on a 2.3L. i know what i'm going for , but i'm not sure if it would be worth the time to put it in if i don't get the result that i'm trying to get. thanks for the input

 

[XxRedDevilxX]

Well it also depends on what kind of setup your trying to go for. If you want decent power with fast spooling than the 35r will do. If you want great power and your not caring about spooling than a 40r will do. Also it depends if your running a few other things engine management, nitrous etc...

 

[Mikael SS]

Well it also depends on what kind of setup your trying to go for. If you want decent power with fast spooling than the 35r will do. If you want great power and your not caring about spooling than a 40r will do. Also it depends if your running a few other things engine management, nitrous etc...

i've never considered 5000 rpm boost threshold to be "fast"

 

[GVR4592]

i've never considered 5000 rpm boost threshold to be "fast"

The 35R will spool a lot quicker than 5000 rpm's on a stroker. I had a GTG3561( journal bearing GT35R), it would reach 20 psi by 4000 rpms in 3rd gear on a bone stock 2.0.

 

[Clutch GSX]

I'm working on my project, and i'm at a debate! GT35R or GT40R. I'll be running a 2.3L and i'm sure this thing will be a beast. I'm sure that many people will shy me away from the GT40R and GT35R on a 2.3L. i know what i'm going for , but i'm not sure if it would be worth the time to put it in if i don't get the result that i'm trying to get. thanks for the input

Is there an actual question?? Youre going to have to give a lot more info (goals, budget, etc) and actually ask something if you want an answer.

 

[boostedgsx1997]

Well since I have a stroker I can tell you will spool the turbo noticibly faster. When I was breaking in the engine, I used a Big 16G and it maxed out on boost by 3000-3500rpms. My friend has a 2.0 and when I told him he laughted. Then I launched it for him and now he is a believer. I didnt think a 300cc diference from a 2.0L to 2.3L wll make a such a drastic difference but I guess I was wrong. go with GT35R, good horsepower and you can keep it a normal daily driver. Too big of a turbo and this car will turn into a money pit .

 

[GVR4592]

Is there an actual question?? Youre going to have to give a lot more info (goals, budget, etc) and actually ask something if you want an answer.

Can you read?

I'm working on my project, and i'm at a debate! GT35R or GT40R

 

[chetvram]

IMHO its not worth running a turbo that large on a stroker unless you are willing to shell out the cash to build a stroker to rev high enough to take advantage of the powerband of a larger turbo.

 

[ProjectTalon92]

thank you GVR4592
the stroker i'm building will hopefully have titanium rods. I POSTED A THREAD AND NO ONE REPLIED. but if i have to i'll go with different rods. with a crower billet stroker 102 mm crank. all the information is in my profile. 9.1 compression piston, with EITHER A RACE PORT, OR AS LARGE OF PORT BEFORE GOING TO RACE. COMPLETE Ferrea valvetrain. with either HKS 272 or 280 cams and HKS cam gears. I ALSO POSTED A THREAD ABOUT MY GOALS. THAT IS ALSO IN MY PROFILE, FOR THE PERSON WHO DIDN'T THINK THERE WAS A QUESTION, TAKE A LOOK AT MY PROFILE. the amount of money isn'ta prolbem. i'm not saying i'm loaded cause i'm not by any means, but what ever it takes to have my dream car i'll have it. i know the downfall of having a stroker, but with enough work and MONEY there is no reason that you can't get a decent redline. also there is no reason i can't obtain my goals of 800 plus WHP and 9's in the 1/4.

 

[vaboys2ndgen]

35r all day with the 2.3l 40r IMO seems to be and you wont want to crack the throttle to that high of an RPM to use the full potential the 40r would give you.

 

[prostreetdsmx1]

37R or 42R. I'm not a huge fan of the 40.

 

[Black_Bullet]

Well if you want 800whp like you just said then going bigger than the 35r would be nessecary. Have you thought about building a 2.4 over a 2.3? Not much a difference, but ive heard a few ppl tell me the 2.4 has a slightly better rod ratio and can take the revs better. They didnt have any proof backing this though, perhaps just biased on their own 2.4s... Ive spoken with a few good Dsm tuners and they can easily see 8,500rpms on their 2.3s with no issues, but revving any higher and it becomes a longevity issue and i think youd be asking for trouble reguardless of how well it was built. I think the 37r or 42r would be better selection also. Id get the 37 if I were you but if you got the 42r (for the power your looking for) your goal would end up being you trying to max out your boost controller before 5k rpms to make the 42r have a decent power band with the limited revs of 8500k. Why?, because people maxing out that thing spin more than 9k; and at the level of performance you want theres more power in rev than stroke.

Check out this though, http://www.dsmtuners.com/forums/tun...0-whp-finally-dynoed-40-psi-dsm-blks-car.html

 

[Clutch GSX]

thank you GVR4592
the stroker i'm building will hopefully have titanium rods. I POSTED A THREAD AND NO ONE REPLIED. but if i have to i'll go with different rods. with a crower billet stroker 102 mm crank. all the information is in my profile. 9.1 compression piston, with EITHER A RACE PORT, OR AS LARGE OF PORT BEFORE GOING TO RACE. COMPLETE Ferrea valvetrain. with either HKS 272 or 280 cams and HKS cam gears. I ALSO POSTED A THREAD ABOUT MY GOALS. THAT IS ALSO IN MY PROFILE, FOR THE PERSON WHO DIDN'T THINK THERE WAS A QUESTION, TAKE A LOOK AT MY PROFILE. the amount of money isn'ta prolbem. i'm not saying i'm loaded cause i'm not by any means, but what ever it takes to have my dream car i'll have it. i know the downfall of having a stroker, but with enough work and MONEY there is no reason that you can't get a decent redline. also there is no reason i can't obtain my goals of 800 plus WHP and 9's in the 1/4.

In that case I wouldnt even go with the stroker to make 800HP. Youre going to need something larger than the GT35. The 35 is only rated to 600HP. You should look into building a destroked engine 2.1 liter and building the hell out of the top end (duel valvesprings, the lightest stuff you can find extreme duty head studs etc.) and getting a big ass turbo such as the 42 or something. I hope this isnt a daily driver and you are going to be running race gas all the time.

 

[Clutch GSX]

Can you read?

Well first of all thats wasnt really a question. It was a statement but I was mainly trying to point out that he was already telling us that he was sure people would shy him away from those turbo and he knows what he wants then hes asking for advice. It just seemed like he was condradicting himself. Like give me advice but I know what I want so Im not going to take it. Thats just what I got from it. And sorry to the OP I didnt look at your profile first.

 

[ProjectTalon92]

Everyone should check out Black Bullets link. There's no reason that you can't get those kinda numbers out of a 2.3 I'm not saying i don't want anyones advice. But when you say. there wasn't a question in the thread, then exit the tread and don't leave any advice. That just how i feel. And as far as it being a daily drvier, here's my input on that idea. it doesn't have to be ran at 30+ PSI every where i go. i figure on running race gas at the track, and 93+ octane on the street. having a mild tune setting for the street would be just fine for daily drving and what ever else i need it for besides the track. I've done alot of research on the 2.3L and still have some to do, but if i am going to for the results i want, the car wont see past 8,500 RPM at the most. And if i read right, on that link, that car went well into the 10,000 RPM close to the 11,000 RPM range. If i think of anything else i'll edit this post. and if i stand corrected i'll edit this post. i've always liked the 35R, 37R, and the 42R. but all those fall in the over kill or not enough umph area for my application. What alot of people don't realise is... it's not the all bottom end that gives you the capabilities of pushing the car into the high RPMs, it's more about the valvetrain that will get you there.

 

[Black_Bullet]

Edit that last post a little I had trouble following...^^
Maybe its because im sick right now and sneezing every 2 seconds.
But from what I can make out of this thread, if you have the knowledge to know what to do, and the intelligence to know what kind of researching trial/error you have to go thru and not to mention the hardcore cash to fund this project in the first place then i say go for it. Even if you dont quite reach your goal, the type of power your talking is still going to be sicker than what 70% of us have if its done right; even 600whp from a 2.3 stroker would be a tough one to handle;especially on the street. 10s arent all that hard to achieve and are still realistic for your goals if you truely have the money to dwelve deep into the dsm experience. Personally high 9s and faster i dont think is worth the effort on a dsm for most of us. Unless your sponsered or something with a shop/ and a purpose built car id say go get a fbody or a 1st gen rx7 and build it for those type of times done consistently. Nothing in our drivetrains will last long at that level of power/racing requardless of how upgraded it is... Thats all I have to say.

 

[JayRolla]

I would go with a 37r so it will spool nice and fast. You dont want a huge slow spooling turbo on a stroker IMO.

 

[ProjectTalon92]

well i wouldn't say i have the money to just throw out there and build what ever i want, but i'm definatly set on what my goal is. i started this thread to see what people thought about that kind of setup. from what i saw on that link from black bullet, that makes me even more determined to build it just how i wanted to. i think people shy away from the idea of build a 2.3, cause many think it limits the capabilities of the engine. many think you have more low end grunt, and nothing past that.

 

[JayRolla]

well i wouldn't say i have the money to just throw out there and build what ever i want, but i'm definatly set on what my goal is. i started this thread to see what people thought about that kind of setup. from what i saw on that link from black bullet, that makes me even more determined to build it just how i wanted to. i think people shy away from the idea of build a 2.3, cause many think it limits the capabilities of the engine. many think you have more low end grunt, and nothing past that.

Only thing people are really scared of is not being able to push past 7500-8000 rpm. If you choose a huge turbo that wont spool till 5000rpm that only gives you a small area of power.

 

[ProjectTalon92]

look at the link earlier in this thread.

 

[Mikael SS]

look at the link earlier in this thread.

i think you should. the dyno clearly shows they stopped at 8500rpm.

build your stroker and put a huge turbo on it with no nitrous. you'll have a great dyno sheet to race people with

 

[JayRolla]

Not saying its not possible. I dont really see the dyno slip without nitrous. If you are going to run nitrous it will really help with spool and you will be fine. For a better DD you can make a little less power but have real fast spool, thats all I'm saying. I know guys running t67's on strokers and 2.0's with no problems.

 

[Turbo Monk3y]

So whats wrong with getting full boost @ 5500rpm and having a 7900 rev limit?

 

[JayRolla]

Nothing I guess, but I would rather have full boost by 4-5k rpm if this is a DD. If you are building an all out drag car then go for it.

 

[Clutch GSX]

I really dont think you understand what we are saying. First off, Im not going to not help you because you worded something wrong Im going to ask you to clarify it so I and others can understand what you are asking and that is what I did, no big deal. Anyways, you seem to be obsessed with that link so ill discuss why that is completely different then what you want. First of all, He was using nitrous to get 730HP. He only got 640HP without Nitrous. Both of those are a loooong way off from your outlandish goal. Im pretty positive he doesnt daily drive that car and it is set up specifically for drag. Im sure hhas over $20,000 into that car. He doesnt run that car without race gas. That car by no means revved to 10000 RPM so you must have misread that. If you looked at the chart he stopped at 8500RPM and the turbo maxxed out at 7200RPM. Also Im pretty sure everyone realizes that the head has everything to do with high RPM.

So heres the deal, a stroker shouldnt rev past 8500RPM but if you want to do it go for it but its not going to last long at all. There is absolutely reason to have 800+ HP on a daily driver. If you have the kind of money it takes to build a 800+HP car then you should keep it as your drag car and buy another car to daily drive. The idea that you can have two different tunes: one for 800+Hp drag and another for daily driving is rediculous. I think you have been watching too many supra videos on streetfire.com or something. 4 cylinder engines do not make 800+ HP unless you have tons and tons of money which you said you dont. If you want our advice here it is. Build a 2.3 stroker with a 35R like me and get a max of 600HP that revs to 8000RPM or build a 2.1 destroked with a bigger turbo that revs to 9000-10000RPM and get great high end power and sacrifice low end.

Simply put, your goal is unrealistic at best. Do some research and figure out whats possible with these cars and what isnt. If you think everyone is wrong then go for it and good luck but we tried to warn you.