I dont think I have ever seen a stock turbo do that on pump gas and 21 lbs of boost. I have also never seen a larger turbo doing 450 awhp on a stock block and pump gas without water injection. I have searched most of the dyno graphs on this forum and my numbers seem similar to others with the same mods and same boost. I do think the dynapack probably reads a little lower than a Dynojet, but Im not sure by how much.
There isnt much more tuning that can be done. The A/F's are rock solid at 11.7 across the board.

Jason

 

21 PSI


Probably more


Nope, it wasa breaking up pretty bady because of the lack of proper spark but he had a 108MPH in the 1/8. With a Big turbo like this, you need a full coil on plug ignition to support the big boost. 132MPH was 27PSI breaking up.


Oh it would NEVER hold 30PSI, not the 16G, but by running a BIG turbo like the GT35R at 21PSI would be like a 16G going all out. The 35R is a VERY efficient turbo and rated at over 650WHP and I bet it could squeeze out 7000WHP on a built block/ported heads/etc.


Just because you have not seen it does not mean it does not exist. The main limiting factor is fuel, and spark, if teh turbo is efficient enough, you can do it, teh GT35R happens to be one of those turbos that can make 500WHP on pump gas with proper supporting mods, there is a thread on this very site with the dyno chart made almots a year ago

11.7 A/F what about timing advance? boost leaks?

 

Whose evo is this? Where is it from? 128mph at 21 psi on a GT35R? That is sick. Definately have to see this.

 

Anymore timing advance and I get knock. The boost is solid at 21lbs across the board.

 

Dude

Post some graphs.

Ben

 

I agree the numbers are very low....

 

I think the #'s are right on par with what I've seen around the boards as well. This looks to be a solid tune on the AEM to me....people just put too much faith into random dyno numbers thrown around on the board. From the way I see it, I'm guesin this is the gt35r with the smaller A/R....correct me if I'm wrong. I'm guessing from the numbers (especially the torque) you're getting and when you cliam full boost. I think you got pretty decent numbers....I'm especially impressed by the torque you were able to achieve on this turbo. I'm hoping to make around your #'s as well on 91 octane when I'm done with my car, pretty similar mods in general but won't see till it's done. And keep in mind everyone from what I've seen, dynopak supposedly reads a bit lower and if that holds, then these numbers seem totally legit to me.

 

Those numbers seem about right to me with only 21 psi on pump gas.

 

seems like great numbers for only 21 PSI and PUMP GAS!?!??!!?!?!??!? wait till he cranks it up too 27-28 psi and c-16, he may gain 100whp.......and it wasnt on a dynojet...

 

The AMS car made 500 whp on a dynojet with water injection and an extensive list of mods running more than 21 psi of boost. 450whp on a 50 trim? How much boost? What are the supporting mods? I'll believe it when I see it. 128 mph on pump gas and 21 psi is wishful thinking, not going to happen.Evo8tuning, as I said earlier these are decent numbers for 21psi, your mods, and pump gas. They are right in line with what most people see for a similar set up.

 

It only make sense if u guys forgot to enter the right car weight on the dyno. Since u spooled very early for a GT35R and only made 370whp that means the dyno did load your car too much which caused the fast spool and low HP numbers. Take you car to a dyno jet and u will see 400+whp and 4500rpm+ spool. Good luck

 

I don't think this is correct. If you have heavier rollers then the lag will be less since the car has more load on it. The same reason lag is less in 5th gear then 2nd gear. The dynojet should read the lowest amount of lag, but once the car is on the street it will even be lower.

 

Did u carefully read what i said ? I said since the load is too much on the dyno thats why he spooled fast (less lag) and got lower numbers (370whp). DynoJet will have no load on the car(Just the new 224's with the load software which is rare to find anyways), just the rollers weight which will result in 4500RPM+ lag on his combo.

 

Yes. I think this is a possible senario. Load on the dyno causes the turbo to spool faster. However, u should be able to see lean conditions during the 3-4krpm range due to the load. Just post your dyno graphs.

 

The lean condition is true unless they tuned it with all that load on it. Im sure they tuned it in the mid 11's AF. If they tuned the car on a dynojet and then loaded with a dynapack like that, it could result in a lean condition.