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F&F Tokyo Drift S15 had a 26/30, but didn't have stock bonnet... 26 head is slightly lower than 25 also, so a few variables that are changing between ppls experience, maybe a trimming of the hood brace & custom sump setup is all thats needed to retain stock bonnet.

No matter what mate, I think we all expect photos & tyre 'warming' videos when finished :)

F&F Tokyo Drift S15 had a 26/30, but didn't have stock bonnet... 26 head is slightly lower than 25 also, so a few variables that are changing between ppls experience, maybe a trimming of the hood brace & custom sump setup is all thats needed to retain stock bonnet.

No matter what mate, I think we all expect photos & tyre 'warming' videos when finished :thumbsup:

lol, no worries. easily done. i have afew photos which i will uipload in the next day

  • 4 months later...

we have just finished building one (rb26/30 s15

bonnet fouls -- this is with rb20 x member and lower rx7 series 1 aftermarket solid mounts (lower than the rb20 mounts)

so i can say right now that it would not fit with std mounts (rb20 mounts + brackets + xmember) - i have one in front of me!

we have a fibreglass bonnet on there and took a TINY bit out of one place and she now closes no dramas

cant take photos if necessary

  • 9 months later...

Back to the RB20's and 25's not fitting without bonnet mods; i'm pretty sure that the people having problems are still retaining the factory intake manifold and that is where their problem lies. with an after market intake manifold there is no problem. As per the 30 question ECC has answered it.

Edited by D_Stirls
Re-drill the engine mount bracket holes further down 15mm as outlined in the HUGE RB30 thread. I did this to mine and it worked a treat.

bad news as this drops the sump below the xmemeber and is the fist thing to strike the ground in a S-chassis.

You can only do that with the rb20 and rb25de brackets anyway. 25det,26 even RB30(exhaust side) have cast fancy looking mounts that don't really provide the room to do that, safely.

really if your a smudge out using rb20 brackets id just fit the rb30de brackets as they will move the motor back a tiny bit more(5-10mm) and cost literally $5 from U-pull it or alike.

if it's a bigger drama (silvias) there is more options with x members and bracket combos. best being 33 rb25det x-member with matching brackets and rb25de,rb20,rb30,rb26 engine mounts (or any custom about 40mm high that lines up) the stock 33 mounts are about double the height as the rest.

Edited by GT-RZ
  • 4 weeks later...
i am currently doing this conversion and am using a r32 cross member and planning to use vl engine mounts??

will this be suitable and will the stock bonnet close with the motor in???

also i will be running a rb25 box and i have bashed the tunnel out so it fits, does anybody know if the shifter will come out the standard hole???

thanks for help..

denis

I have done this with a rb30/25 into a s13 the r32 x member will sitt the engine to high from what I was told so I got a a31 x member and engine mounts, this is supposed to be lower.

Then I had to lower the x-member 10mm and cut out the bracing in the bonnet.

It shuts and I have about 5-10mm clarence BUT I have not started the engine yet so dont know what happens during use if I get a big dent due to engine movment or if it fits OK.

Christian

post-11620-1247441238_thumb.jpg

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