Throttle bodies

[alquazi]

I'm trying to find a place in the UAE that would be able to bore out my throttle bodies for my car. I would then use the throttle plate from a E36 M3 to use with my TB's(I was told they were bigger than my stock ones).
Does anyone know the actual size for the E36 M3 throttle plates?
Thanks

[Ayham]

I'm not in the loop regarding the actual size of the E36 TBs, but I think it's correct that they're bigger (engine bay size restraints between 6 TBs and 8 TBs)...

Without a doubt you'd benefit from oversized TBs, but there's a point of diminshing returns and it'll be a trial and error procedure till you find the optimum dimater. Unless it's been done before and unless you have plenty of time and resources, I suggest investing in airboxes with "film" filter elements for the same result (on stock ECU tune) or better if you'd use an Alpha-N chip for the MAF delete.

[SSense]

Its hard fitting the E36 TBs into an E39,
BTW how much extra hp will you achieve after replacing the TBs ?! 6-8 hp extra ? or is it more ?

[SSense]

FYI, you'll also have to get the right software to run the E36 TBs on the M5, without the software you'll be stuck no where, thats an important point, because you've got the Chip Logic ECU which might not be compatible.
Moreover if you think the car will gain some hp, I dont think its true, the only extra hp that you'll gain is actually the crank hp.
TB mod is of no value, I wish you good luck, but my recommendation is spend your money on other mods. In the end, the choice is entirely yours.

[Bashar M.]

I really dont think that u'll have alot of gains doing that, since ur engine head would still have the same intake runners designed for stock TBs..........unless ur planning to go FI in the future :bow:

And E36 TB are larger than the M5's TB but i dont have the actuall size of it, but i can search it for you.....where ru going to get the throttle butterflies from?????? they do not sell them alone !!!

[SSense]

Ive read somewhere online Dinan selling their TBs alone, but the TB's will not work right unless you have the Dinan software.

[alquazi]

What I'm trying to do is experement with an extra set of TB's I have. Dinan claim big gains with their TB's and velocity stacks. So if I can do the TB's, then I would have to figure out the velocity stacks. I would then use the Dinan stage 6 software which would take advantage of my Tb's, cams, and exhaust.

[SSense]

alquazi, this is seriously like risking your engine, but if your aim is to gain more hp then there are other better ways rather than the TBs. Think and decide bro before taking any step :) In the end its your car.

[alquazi]

alquazi, this is seriously like risking your engine, but if your aim is to gain more hp then there are other better ways rather than the TBs. Think and decide bro before taking any step :) In the end its your car.

OK, what other better ways are there to gain more horse power?

[SSense]

With the Chip Logic ECU and the custom made exhaust, how many ponies can you pull now and how mauch more are you looking for ?

[Ayham]

Airboxes for intake, the only REAL intake mod...

[SSense]

Airboxes for intake, the only REAL intake mod...

+1 I heard Dinan is good

[alquazi]

With the Chip Logic ECU and the custom made exhaust, how many ponies can you pull now and how mauch more are you looking for ?

With that plus my cams and headers I should be around 440-450 HP. I'm restricted in the intake side. If I get a cold air intake and solve the TB's and velocity stacks and upgrade the software to Dinan stage 6, then I should be around 480 HP. Then I'll start working on my short block to get it ready for FI. I guessa a twin SC will be good for 750-800 HP.

[SSense]

With that plus my cams and headers I should be around 440-450 HP. I'm restricted in the intake side. If I get a cold air intake and solve the TB's and velocity stacks and upgrade the software to Dinan stage 6, then I should be around 480 HP. Then I'll start working on my short block to get it ready for FI. I guessa a twin SC will be good for 750-800 HP.

750-800 HP ?! Even the Dinan supercharger doesnt make that much, their single SC makes around 100-120 HP only. All the Best dude

[alquazi]

750-800 HP ?! Even the Dinan supercharger doesnt make that much, their single SC makes around 100-120 HP only. All the Best dude

The Dinan S3 SC M5 makes 621 HP, so thats actualy 221 HP gain. I belive it's by far the best all around SC option out there for the E39 M5. The only problem is that to go from a stock M5 to a Dinan S3 M5 you would have to pay more than $70,000. Thier SC kit alone is $23,999 and that's not installed.