GS400 SRT intake LIES!
GS400 SRT intake LIES!
So I know the SRT intake is supposed to be the "best" I have owned one for over 8 years on my other car and I just bought a used one for the new GS4.
I decided to dyno my car today and since it was slow there we got experimenting a little.
I have OBX headers, hi flow cats, 2.5" X-pipe and catback.
I proved today that it's ALL LIES and hype. Dyno'd the car with the intake and made 226whp. So then I pull the intake and "race ecu" out and put the stock pipe back in with a cone filter on the end. Car then made 218whp. I made 3-4 pulls with each setup and it was within less than 1HP. I should not even be surprised since Mo at SRT lies about everything else...
Where is the 30hp and 4o ft lb of torque we were promised?????
Probably hiding with all the money he's stolen from people.
I decided to dyno my car today and since it was slow there we got experimenting a little.
I have OBX headers, hi flow cats, 2.5" X-pipe and catback.
I proved today that it's ALL LIES and hype. Dyno'd the car with the intake and made 226whp. So then I pull the intake and "race ecu" out and put the stock pipe back in with a cone filter on the end. Car then made 218whp. I made 3-4 pulls with each setup and it was within less than 1HP. I should not even be surprised since Mo at SRT lies about everything else...
Where is the 30hp and 4o ft lb of torque we were promised?????
Probably hiding with all the money he's stolen from people.
Damn bro... even with or without the intake, with dyno readings from 218-226 with headers makes me think that there's something wrong with your car. Those numbers seem extremely low.
The AFR is really rich, leaner with the intake but with the stock intake it was dipping into the 10's at WOT - I'm gonna install an SAFC and go back, there's easily 20-30hp missing.
The other possible issue is that this is a JDM engine - they are supposed to be rated 10ho less but I always thought that was from exhaust manifolds and ECU tuning.
I'm curious now to compare the pistons and cams.
I'm using the original USDM ECU and the headers so who knows.
What are other guys dyno-ing at?
The other possible issue is that this is a JDM engine - they are supposed to be rated 10ho less but I always thought that was from exhaust manifolds and ECU tuning.
I'm curious now to compare the pistons and cams.
I'm using the original USDM ECU and the headers so who knows.
What are other guys dyno-ing at?
something definitely seems wrong.. If you look into member Rock-a-Lex old threads he has 3 different tunes with different bolts ons and the SAFC and making somewhere in the 286 range on the dyno... sounds like you need the SAFC for a tune...
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Your numbers are well below the average though for sure.
Let us know what the safc yields..
What I am going to do is dyno my other GS4 and see what it does.
Lexus Test Driver
Joined: Oct 2009
Posts: 882
Likes: 4
From: az
i was thinking of this earlier that the guys with PPE headers that unless your cats are free flowing the headers IMO defeat the purpose of letting the engine breathe.. less restricted headers going into restricted cats, into straight/X-pipe, into resonators then into mufflers. Seems like Angus setup would be better with everything "free flowing"... has anyone measured the OBX compared to PPE?
